JP3444588B2 - camera - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera, and more particularly to a camera having a data imprinting mechanism.

[0002]

2. Description of the Related Art Conventionally, regarding a data imprinting mechanism in a camera, Japanese Patent Publication No. 57-55131 discloses that a numerical indicator intermittently emits light based on the output of a detecting means for generating a pulse signal following the film winding. The technical means to do this is disclosed.

Further, in Japanese Laid-Open Patent Publication No. 60-166937, a signal is output in response to the movement of the film, and a fine time interval is set based on the timing result of the output time interval of the signal, thereby recording data. Technical means of doing so are disclosed.

[0004]

However, in the technical means disclosed in the above Japanese Patent Publication No. 57-55131, the interval between imprinted characters is constant, but in the system using only the driven sprocket and the driven friction roller, Since the correlation between the film stop position and the imprint start position at the time of shooting cannot be accurately detected, the imprint start position on the shooting screen will vary, and in extreme cases, the imprint data will be out of the print range when printing. There is a risk.

Further, in the technical means disclosed in the above-mentioned JP-A-60-166937, the amount of film pulling force from the cartridge is changed little by little, and as a result, the film winding speed is also changed little by little. Also, the more the camera is used, the more the coefficient of friction in the film feeding path increases, and the smaller the winding speed becomes. Therefore, the imprinted character spacing may be uneven. In addition, the film wound on the spool may be suddenly tightened when the film is wound, and in this case, it may not be possible to cope with the problem, and the characters of the imprinted data may be overlapped.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a camera having a data imprinting mechanism for imprinting data at precise positions at equal intervals.

[0007]

In order to achieve the above object, a camera of the present invention includes a data imprinting device that imprints data on a film being fed, and a plurality of first imprinting devices that detect movement of film perforations. A first detection means for outputting one detection signal; a second detection means for detecting the movement of the film piece at a resolution higher than that of the first detection signal and outputting a plurality of second detection signals; , Above first
When the detection signal reaches the first predetermined number, monitoring of the second detection signal is started, and after the second detection signal reaches the second predetermined number, the second detection signal is synchronized with the second detection signal. And a control means for operating the data imprinting device.

In order to achieve the above object, a data imprinting method of the present invention is a data imprinting device for imprinting data on a film being fed, and a plurality of first detections by detecting movement of film perforation. Data imprinting of a camera provided with a first detecting means for outputting a signal and a second detecting means for detecting the movement of the film piece with a resolution higher than that of the first detecting signal and outputting a plurality of second detecting signals. A method of starting the film feed and starting monitoring of the second detection signal when the first detection signal reaches a first predetermined value, and the second detection signal is monitored by the second detection signal. After reaching a predetermined value, the data imprinting device is operated in synchronization with the second detection signal.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 are an external top view and an external front view of a camera according to an embodiment of the present invention, respectively.

The external appearance of the camera 1 is as shown in FIGS. 1 and 2, and the front side is covered with a front cover 21, the rear side is covered with a rear cover 24, and the side side is covered with a side cover 27. The front cover 21 has a lens frame unit (lens lens frame) 2 substantially in the center on the front side, an exterior panel 22 on the upper part thereof, and a back cover 25 on the rear side for opening and closing. There is.

The front cover 21 is a member that covers the respective components inside the camera from the front side, and a grip portion 21a for gripping the camera 1 is provided on the left side. At the top of the grip portion 21a, the strobe light emitting portion 8 is internally provided.
A strobe window 23 made of a transparent panel is disposed on the left side of the strobe window 23. A projection 21b is provided near the left side of the strobe window 23 to prevent the strobe window 23 from being caught by a finger during photographing. There is. Also, this front cover 21
A release button 30 for performing a release operation is provided on the left side of the upper surface of the zoom dial 31 for zooming by surrounding the release button 30 with a finger and rotating the release button 30 left and right. Is provided. On the right side of the release button 30, there is a display L
An LCD window 29, which is a transparent window for the CD, is provided, and a shooting mode button 3 for switching the shooting mode of the camera is provided on the right side.
2. A flash mode button 33 for switching the flash mode, a self-timer / remote control shooting state setting self-timer / remote control button 34 are arranged in parallel, and a panorama for switching between the panoramic shooting state and the standard shooting state on the right end portion of the camera. A button 35 is provided.

The lens frame unit 2 is a cylindrical frame member that supports a taking lens (not shown). A lens barrier 7 is formed in a lens opening portion on the front side of the optical axis of the lens frame unit 2 so that a subject light flux can be opened at the time of photographing and is blocked to protect the photographing lens at the time of carrying.
1, 73 are provided.

The rear cover 24 is an exterior member for covering the rear side of the camera, and a protrusion 24a for covering the viewfinder eyepiece is provided on the upper right side, and on the upper side of the rear cover 24. , A power button 36 for switching on / off the power of the camera, a date mode button 37 for switching the data imprinting mode, a date set / illumination button 38 for correcting the imprinted data and turning on the illumination of the display LCD. ing.

The back lid 25 is a lid member provided at the rear of the camera for loading and unloading the film.

The exterior panel 22 which is the translucent member is fixed to the front cover 21 by adhesion or welding.
It is one of the members that make up the appearance of the camera. In this exterior panel 22, a light-shielding paint film is integrally formed on the surface of a transparent member by, for example, in-mold injection molding. The exterior panel 22 is provided with a finder entrance window 22b and a photometric window 22a at a position on the upper right side of the lens barrel 2, and the windows 22b and 22a are covered with a light-shielding paint film. It is transparent because it is not covered.
Further, the entrance window 22b for the finder and the window 22 for photometry
An AF light projecting window 22c is provided at a position between a, and an AF light receiving window 22d is provided at a position slightly above and to the left of the lens frame unit 2, and only infrared light is transmitted therethrough. A light-shielding paint having the property of being used is used. AF
A self-timer LED is provided near the left side of the light receiving window 22d.
A window 22e is provided, and a light-shielding paint of a type that transmits red light is used here so that the lighting of the display LED provided inside can be observed from the outside while the self-timer is operating. Has become.

3 and 4 are a top perspective view and a front perspective view showing the internal structure of the camera 1, respectively.

As shown in the figure, the lens frame unit 2 includes a shutter unit 3 and a shutter plunger 11 inside.
1, a focus motor (AF motor) 108, a taking lens, and the like, and the shutter unit 3 is a lens shutter driven by the shutter plunger 111. In addition, a patrone 14 having a film 13 loaded therein is arranged in a patrone chamber inside a grip formed on one side of the camera 1.

On the other hand, in front of the inner wall surface of the cartridge chamber,
A DX code detecting device 9 is arranged, and two built-in batteries 10 are further provided in front of the grip portion.
Behind the battery 10, main capacitors 11 for stroboscopic light emission are respectively arranged.

A spool chamber 4 is provided on the other side of the camera 1.
b is formed, and a spool 217 for winding the film 13 delivered from the cartridge 14 is disposed in the spool chamber 4b. Also, the spool 217
The main body drive motor (WZ motor) 20 is coaxially installed inside
1 is provided to perform the film winding, rewinding, zoom driving, and screen size switching operations. Further, in front of the spool chamber 4b and in a substantially triangular space near the lens frame 2, a switching plunger 206 for switching the above-mentioned operations of the main body drive motor 201 is arranged.

A panorama switching mechanism 7 is arranged from the space between the spool chamber 4b and the lens frame unit 2 to the back of the central portion. The panorama switching mechanism 7 is driven by the main body drive motor 201 and switches the screen size between the standard size and the panoramic size. Further, a date imprinting device is provided for switching the date imprinting position in association with the screen size switching operation.

The panorama switching mechanism 7 is arranged between the spool chamber 4b and the lens frame unit 2 as described above (hatched portion in FIG. 3). As a result, since it is arranged near the main body drive motor 201, the number of transmission mechanisms can be reduced, and the screen size can be electrically switched without increasing the size of the camera.

The DX code detecting device 9 and the built-in battery 1
0, above the main capacitor 11, a strobe control board 323, which is a control board for the strobe light emitting section 8, is disposed. The strobe light emitting portion 8 is a light emitting portion including a Xe tube, a reflecting umbrella, etc., and is arranged above the front surface of the grip portion.
It is driven by the strobe control board 323.

A main body drive mechanism 6 is arranged on the lower surface side inside the camera 1. The main body drive mechanism 6 outputs the output from the main body drive motor 201 to the switching plunger 206.
, The film 13 is wound up, rewound, power is transmitted to the lens frame unit 2 for zoom drive, and power is transmitted to the panorama switching mechanism 7 to switch the screen size.

In the main body drive mechanism 6, a switching clutch portion 6a is arranged at a position substantially below the spool chamber 4b, and an output from the main body driving motor 201 is output to the switching plunger 206 and the main body driving mechanism. Motor 2
The rotation direction of 01 is used to switch to each driven side at the initial stage of output.

The lens frame unit 2 and the spool chamber 4b
A finder unit 5 is arranged above the. The finder unit 5 is mainly composed of a finder lens, a finder zooming mechanism, a distance measuring device, a photometric device, a finder screen size switching mechanism and the like.

On the front surface of the finder unit 5,
A distance measuring light emitting device (IRED) 423 and objective lenses 151 to 153 of the finder are provided.
The photometric light receiving element 45 is provided on the upper front surface of the lens frame unit 2.
0, a light receiving element (PSD) 420 for distance measurement is arranged.

The finder unit 5 is adapted to be zoomed in conjunction with the zooming operation of the lens frame unit 2 by a finder zooming mechanism including a rotating member 163, a driving belt 162 and a cam member 161.

Further, a finder panorama switching mechanism 15 is provided behind the camera in the finder unit 5 and above the panoramic switching mechanism 7. The viewfinder panorama switching mechanism 15 is a mechanism that interlocks with the panorama switching mechanism 7 when switching the screen size, and switches the viewfinder mask and the viewfinder magnification by the power of the panorama switching mechanism 7.

Since the finder panorama switching mechanism 15 is arranged above the panorama switching mechanism 7 as described above, the number of transmission mechanisms is small and the finder switching can be performed without increasing the size of the camera. .

A main substrate 301 is provided on almost the entire upper surface of the camera 1. The main board 301 is a hard printed board on which main electric circuit components of the camera are mounted, and is connected to various flexible printed boards as described later. A display circuit (LCD) 404 and a display lighting device 454 (see FIG. 74) are provided on the main substrate 301.
A display device 16 configured by, for example, is provided. The details will be described later.

Next, the lens barrel in the camera of the embodiment of the present invention will be described.

5 to 7 are central sectional views showing the structure of the lens barrel in the camera of the embodiment of the present invention, and FIGS. 9 to 12 show the detailed structure of the lens barrel. It is an exploded perspective view. 5 shows the state of the focus group initial position (infinity side) at the wide-angle end, FIG. 6 shows the state of the focus group extension position (close-up side) at the wide-angle end, and FIG. 7 shows The respective states of the focus group initial position (infinity side) at the telephoto end are shown.

As shown in FIGS. 5 to 7, the present lens barrel includes a first lens group 141 and a second lens group 14 from the front.
2, a third lens group 143, and a fourth lens group 144 are arranged. FIG. 8 is a diagram showing the outline of the movement of each of the lens groups during the zoom operation. As shown in FIG. 8, the first lens group 141 to the third lens group 143 among the lens groups have a wide angle. The lens barrel moves integrally from the end to the telephoto end.

Hereinafter, each part will be described in detail with reference to FIGS. 5 to 7 and 9 to 12. It should be noted that each of FIGS. 9 to 12 is an exploded view of each member in the optical axis direction.

As shown in FIGS. 5 and 9, the fixed frame 52 of the lens barrel is fixed to the camera body (not shown) at the rear end,
A straight-movement key groove 52a into which three straight-movement keys 53b arranged at the rear end of the first lens group frame 53 (see FIG. 10) are fitted.
And a straight keyway 52d into which the FPC guide 78 (see FIG. 12) is fitted is formed. A rotary frame 51 is rotatably fitted on the outer periphery of the fixed frame 52.
A groove 52 is formed along the circumferential direction on the outer periphery of the tip of the fixed frame 52.
c is formed, and a C ring 64 for locking the rotary frame 51 in the optical axis direction is attached.

On the other hand, on the inner circumference of the fixed frame 52, an intermediate frame 59
A cam groove 52b that fits with the cam follower 59a (see FIG. 12) is formed (a development view of the fixed frame 52 is shown in FIG. 23). Further, the inner circumference of the front end portion of the fixed frame 52 is made of a flocked cloth or the like for preventing unnecessary light from entering the mirror frame through the gap between the fixed frame 52 and the first lens group frame 53. The light blocking member 145 is fixed.

As described above, the rotary frame 51 is radially fitted to the outer periphery of the fixed frame 52 on the inner peripheral surface thereof, and is moved in the optical axis direction by the C ring 64 attached to the tip of the fixed frame 52. The movement is locked. This allows
The rotary frame 51 is movable in the rotational direction with respect to the fixed frame 52, but its movement in the optical axis direction is restricted.

A cam groove 51b having a bottom for moving the first lens group frame 53 in the optical axis direction and a bottom for moving the FPC guide 78 in the optical axis direction are provided on the inner circumference of the rotating frame 51. A cam groove 51c is formed (a developed view is shown in FIG. 24), a gear 51a is formed on the outer circumference, and a zoom gear 227 which is an output gear of the zoom drive unit meshes with this to perform rotational drive. . further,
A pattern sheet 76 of a zoom encoder for the zoom photo reflector 139 for detecting the zooming position of the zoom lens is fixed to the outer periphery of the rotary frame 51.

As shown in FIG. 10, the first lens group 1 is
The first lens group frame 53, which is the lens frame (mirror frame) of 41,
Straight-movement keys 53b that fit into the straight-movement key grooves 52a of the fixed frame 52 are formed on the outer periphery of the rear end portion at equal intervals, and are movable in the optical axis direction with respect to the fixed frame 52. Further, a cam follower 53a that fits in the cam groove 51b of the rotary frame 51 is formed on the upper surface of the straight advance key 53b. A shutter base plate 81 (see FIG. 11) is restricted in radial and rotational positions on the inner circumference of the first lens group frame 53, and a shutter lid 82 (see FIG. 11) is sandwiched therebetween. It is fastened with screws 65.

Further, a front frame 60 (see FIG. 11) and a middle frame 59 (see FIG. 12) are fitted to the inner periphery of the first lens group 53 so as to be freely rotatable in the circumferential direction, and the fourth lens group frame. 57 (Fig. 12
Roller) attached to the
A straight advance key groove 53e for restricting the lens group frame 57 in the rotation direction
(See FIG. 5) are formed at three inner circumferences. In addition, a through hole 53c for press-fitting a pin 75 for regulating the inner frame 59 in the optical axis direction is formed.

Further, a barrier drive ring 69 for opening and closing the barrier is rotatably fitted in the tip end portion of the first lens group frame 53 in the optical axis direction so as to be rotatable in the radial direction, and the barrier drive ring 69 projects from the hole of the tip end portion. It is connected to the drive gear 100b (see FIG. 11).

As shown in FIG. 12, the fourth lens group frame 57.
Is fastened with a screw so that the fourth lens group holding frame 56 holding the fourth lens group 144 is integrated,
Three pins 57a are planted on the outer periphery thereof, and the rollers 77 are rotatably fitted to these pins. The roller 77
Is fitted in a straight-moving key groove 53e (see FIG. 5) provided on the inner periphery of the first lens group frame 53, whereby the fourth lens group frame 57 is positioned relative to the first lens group frame 53. It is movable only in the optical axis direction and is not movable in the rotating direction.

A fourth lens group spring 62 is provided between the fourth lens group frame 57 and the shutter base plate 81 (see FIG. 11).
Are arranged with the spring bearing 63 interposed therebetween, and the roller 7 is always
7 is urged so as to contact the end face cam 59b of the middle frame 59.

The outer periphery of the middle frame 59 and the inner periphery of the first lens group frame 53 (see FIG. 10) are fitted in the radial direction,
The tip of the pin 75 press-fitted from the outer circumference of the first lens group frame 53 fits into the groove 59c formed on the outer circumference, whereby the first lens group frame 53 is integrally advanced and retracted in the optical axis direction. However, the rotation is held freely. Also, the middle frame 5
A cam follower 59a that fits into the cam groove 52b of the fixed frame 52 is formed on the outer circumference of the frame 9. Also, the middle frame 5
An interlocking plate 66 is fixed to the outer periphery of 9. Further, an end surface cam 59b is formed at one end of the middle frame 59.

As shown in FIG. 11, the front frame 60 is rotatably radially fitted to the inner circumference of the first lens group frame 53 at the outer circumference thereof, and a plurality of second lens group frames 54 are arranged at the inner circumference thereof. A plurality of straight-movement key grooves 60b into which the straight-movement keys 54a are fitted (see FIG. 5)
And a second lens group spring 61, which is a compression spring, is arranged between the second lens group frame 54 and the second lens group frame 54. Further, on the outer periphery of the front frame 60, a gap 66 is formed at the tip of the interlocking plate 66.
The protrusion 60a sandwiched between a and the inner frame 59 is formed.
It is connected so as to rotate integrally with the rotation of (Fig. 1
3, see FIG. 14).

As a result, since the front frame 60 is radially fitted to the inner circumference of the first lens group frame 53, the interlocking plate 66 is formed.
As compared with directly rotating the second lens group frame 54, the eccentricity of the second lens group frame 54 with respect to the rotation can be suppressed to a minimum, and high optical performance can be maintained.

A barrier drive switching lever 101 for connecting the focus drive gear train 146 and the barrier drive gear train 147 is provided on the inner peripheral surface of the front frame 60, and is in a state other than the collapsed state. The position of the barrier drive switching lever 101 is regulated so that the connection is not performed, and the interlocking plate 66 causes the barrier drive switching lever 10 to be retracted when retracted.
There is provided a barrier drive switching lever position restricting cam portion that restricts the position of the barrier drive switching lever 101 so as not to hinder the connection of 1 to each other.

The second lens group frame 54 holds the second lens group 142, is formed with a plurality of straight-movement keys 54a which fit into the plurality of straight-movement key grooves 60b of the front frame 60, and is provided with a rear A cam follower 54b is formed at the end of the third lens group frame 55. The cam follower 54b contacts the end cam 55c formed on the inner peripheral surface of the third lens group frame 55. In addition, the second lens group frame 54
A second lens group spring 61 is sandwiched between the front end and the rear end of the front frame 60. Further, the straight-ahead key of the second lens group frame 54 is fitted in the key groove 60b of the front frame 60. As a result, the second lens group frame 54 and the front frame 60 rotate integrally in the rotation direction, but can freely move back and forth in the optical axis direction. The urging force of the second lens group spring 61 causes the cam follower 54b to move to the third lens group frame 55.
It works so as to contact the end surface cam 55c formed on the.

The third lens group frame 55 holds the third lens group 143, and has an inner peripheral surface on which an end surface cam 55c having a displacement along the circumferential direction is formed on the end surface in the optical axis direction. A cam follower 55d that abuts on the cam portion 58a of the focus cam ring 58 is formed.

FIG. 15 shows the second lens group frame 54 and the third lens group frame 54.
6 is a side view showing a lens group frame 55 and a focus cam ring 58, showing the cam follower 54b and the end surface cam 55. FIG.
The positional relationship among c, the cam follower 55d, and the cam portion 58a is shown.

The cam follower 54b of the second lens group frame 54 comes into contact with the end face cam 55c of the third lens group frame 55 by the urging force of the second lens group spring 61, and the third lens group frame 54 is further moved.
The cam follower 55d of the lens group frame 55 contacts the cam portion 58a of the focus cam ring 58.

Further, as shown in FIG. 11, on the outer peripheral surface of the third lens group frame 55, there is formed a protrusion having a hole 55a formed in the optical axis direction. On the other hand, a straight-moving key 55b is formed at a position substantially facing the protruding portion. A rod 89 held between the shutter base plate 81 and the shutter lid 82 of the shutter unit is provided in the hole 55a.
, And the straight-movement key 55b is fitted in a groove (not shown) formed on the shutter base plate 81. As a result, the third lens group 55 cannot rotate with respect to the shutter base plate 81 and can move only in the optical rotation direction.

The interlocking plate 66 is, as shown in FIG.
It is fixed to the outer peripheral portion of the middle frame 59 and has a gap 6 at its tip.
By sandwiching the outer peripheral projection 60a of the front frame 60 in 6a, the middle frame 59 and the front frame 60 are connected so as to rotate integrally. Further, when moving from the short focus end to the retracted state, the barrier drive switching lever 101, which connects the focus drive gear train 146 and the barrier drive gear train 147 at the end face 66b thereof, is brought into the connected state.

As shown in FIG. 10, the barrier drive ring 69 is rotatable by being fitted to the tip end portion 53f of the first lens group frame 53 at the inner diameter portion 69e. Also, FIG.
0, as shown in FIG. 21, it is connected to the barrier drive gear 100b by the internal gear 69a, and the periphery of the connecting portion is in a bag-like, substantially sealed state. Two plate-shaped barrier springs 70 having a shape shown in the drawing are disposed on the surface opposite to the internal gear 69a (on the front side of the camera) so as to oppose each other, and urge the barrier blades 71 to act as barriers. The blade 71 and the barrier blade 73 are opened and closed (see FIGS. 20 and 21).

The barrier spring 70 is a plate spring having a bent portion formed in the middle thereof, and is arranged on the circumference of the barrier drive ring 69 as shown in FIGS.
The both ends thereof are the protrusions 6 of the barrier drive ring 69.
The guide hole 70 that is in contact with 9b and is formed in the bent portion.
The protrusion 69d is fitted in a and is disposed on the barrier drive ring 69 in a state in which movement in the optical axis direction and the rotation direction is restricted.

As shown in FIG. 10, the barrier blade 71 has a boss 53 projecting from the tip of the first lens group frame 53.
Two arms having the same shape are arranged in the first lens group frame 53 so as to be rotatable around g. Then, as shown in FIG. 20, a protrusion 71c biased by the barrier spring 70, a protrusion 71a for driving the barrier blade 73 in the closed state, and a protrusion of the barrier blade 73 in the opened state. Recess 71b for biasing 73b
And are formed.

The barrier blade 73 is the barrier blade 7
As in the case of 1, the arm is rotatable about the boss 53g at the tip of the first lens group frame 53, and the arm having the same shape is
One sheet is arranged in the first lens group frame 53. And
As shown in FIG. 20, the barrier blade 71 is in the closed state.
The protrusions 71a are urged by the protrusions 71a, and when in the open state, the protrusions 73b are urged by the barrier blades 71 to open and close.

The cover ring 74 is attached to the tip of the first lens group frame 53 and regulates the positions of the barrier drive ring 69, the barrier blade 71, and the barrier blade 73 in the optical axis direction.

Further, the FPC guide (flexible printed circuit board guide) 78 is, as shown in FIGS.
Engagement portion 78 to be fitted into the straight advance key 52d of the fixed frame 52.
b, a cam follower 78c that engages with the cam groove 51c of the rotary frame 51, and an arm portion 78a that presses the lens frame flexible substrate 302 disposed inside the lens frame. The lens frame flexible printed circuit board 302 is assembled by the arm portion 78a so as to have a U shape, and is driven by the cam of the rotary frame 51 in the optical axis direction by a movement amount which is about half the extension amount of the first lens group frame 53. Further, the arm portion 78a regulates the operation guide of the lens frame flexible printed circuit board 302 and the spread in the optical axis direction.

FIG. 27 is a conceptual diagram of a flexible printed board for connecting the main parts of the drive circuit.

A shutter unit 3 is provided in the lens barrel.
Is provided, and in the shutter unit 3, the focus motor 108, shutter plunger 111,
A shutter trigger photo reflector 110, a focus photo interrupter 109, and the like are provided. The actuator, the sensor, etc. and the zoom motor 20
1, the display device 307, the release switch 318, and the control circuit 12 mounted on the main board 301 in the camera body are connected by the lens frame flexible printed board 302. The actuators and sensors will be described later in detail.

Returning to FIG. 5, behind the shutter base plate 81, two shutter blades 92A and 92B are arranged. The shutter blades 92A and 92B are normally closed so as to block the light flux passing through the lens groups, and are opened for a predetermined time by a release operation and then closed. In addition, the shutter blades 92A, 9A
2B is a blade retainer 9 fixed to the shutter base plate 81.
The blade holders 93 and 94 are movably sandwiched between the blades 3 and 94, and serve to guide the shutter blades 92A and 92B when they are opened and closed.

The focus motor 108 is fixed to the shutter base plate 81, and the pinion gear 105 is fixed to the output shaft thereof. The focus drive gear train 146 (see FIG. 11) is used to rotate the focus motor 108.
Then, the focus cam ring 58 is rotated to perform the focusing operation.

The sealing member 68 provided at the tip of the fixed frame 52 is a member for preventing water droplets from entering the inside of the camera and is made of an elastic material. Fixed frame 52 behind the camera
The outer peripheral side is fixed to the front cover 21. On the inner diameter side, the first lens group frame 53 is pressed,
The linear movement of the first lens group frame is possible, and the first lens group frame 5 is provided at two front and rear positions to prevent water droplets from entering the camera.
3 is provided with a lip portion 68a that is in line contact with the ring 3.

Next, the zoom operation of the lens barrel will be described.

First, the zoom operation from the state of the lens frame short focus end shown in FIG. 5 to the long focus side shown in FIG. 7 will be described.

When drive power is supplied to the zoom motor 201 arranged at a predetermined position of the camera body, the gear 227 is supplied.
(See FIG. 9) is driven to rotate the rotary frame 51. When the rotating frame 51 is rotated clockwise when viewed from the subject side, the first
The cam follower 53a of the lens group frame 53 is fitted into the cam groove 51b of the rotating frame 51, and the straight-moving key groove 52 of the fixed frame 52 is also fitted.
Since the movement in the rotation direction is restricted by a, the first
The lens group frame 53 goes straight to the left in the optical axis (toward the subject) in the figure.

At this time, the middle frame 59 is also the first lens group frame 53.
While moving to the left of the optical axis integrally with the fixed frame 52
The cam on the inner circumference rotates clockwise. The rotation of the middle frame 59 changes the position of the cam 59b of the middle frame 59, which contacts the roller 77 of the fourth lens group frame 57, whereby the relative position of the fourth lens group frame 57 with respect to the first lens group frame 53. Changes.

The interlocking plate 66 fixed on the outer periphery of the middle frame 59 rotates integrally with the middle frame 59, and accordingly, the front frame 60 is engaged with the front frame 60 by the straight advance key. The second lens group frame 54 also rotates by the same rotation angle as the middle frame 59. By this rotation, the second lens group frame 54
The contact position of the cam follower 54b with the end surface cam 55c of the third lens group frame 55 changes, and as a result, the relative distance between the second lens group 142 and the third lens group 143 changes.

By the rotation of the rotary frame 51, the FPC guide 78 also moves to the left of the optical axis by about half the amount of the first lens group frame 53, and the lens frame flexible substrate 302 attached to the shutter base plate 81 is mirrored. It suppresses trying to spread toward the center of the optical axis inside the frame.

In the above description, the driving from the short focus side to the long focus side in the lens barrel has been described, but the opposite drive from the long focus side to the short focus side moves the rotary frame 51 counterclockwise. It can be realized by rotating.

Next, the focus drive mechanism in the lens barrel of this embodiment will be described.

16 and 17 are exploded perspective views showing the structure of the focus drive mechanism of this embodiment.

As shown in this figure, the focus motor 1
08 is fixed to the shutter base plate 81. A pinion gear 105 is fixed to the output shaft 108a of the focus motor 108. The pinion gear 105 meshes with an idle gear 106 that is rotatably supported by the shutter base plate 81. Further, an idle gear 107 pivotally supported by the shutter base plate 81 is meshed with the pinion gear 105.

Further, the gear 83, the gear 84, the gear 8
5 and a gear 86 are two-stage gears for reduction, and are rotatably supported by the shutter base plate 81. Further, the gear 87 is an idle gear, and the small-diameter gear portion 87b of the gear 87, the focus cam 58a, and the gear portion 58 are included.
It meshes with b.

When focusing is performed, drive power is supplied to the focus motor 108 from the camera body side.
As a result, the focus cam ring 58 rotates and the third
Rotation of the lens group frame 55 is restricted by the rod 89 and the rectilinear key 55b, and the lens group frame 55 is rectilinearly moved in the left direction of the optical axis. At this time, since the second lens group frame 54 is also engaged with the straight-movement key groove of the front frame 60, the second lens group frame 54 does not rotate but moves straight to the left in the optical axis by the same amount of movement as the third lens group frame 55. Moving.

As a result, the second lens group frame 54 and the third lens group frame 55 are integrally moved in the optical axis direction by the amount of focus adjustment determined by the zoom operation without changing the mutual distance. Then, the state shown in FIG. 5 changes to the state shown in FIG.

The gear 88 is rotatably supported by the shutter base plate 81, and is provided with a slit blade portion 88b. The rotation number of the motor is detected by counting the slit blade portion 88b with the focus photo interrupter 109. That is, by counting the pulses of the focus photo interrupter 109, the rotation angle of the focus cam ring 58, that is, the amount of extension of the second lens group frame 54 and the third lens group frame 55 can be known.

The gear 98 and the two-stage gear 99 are both rotatably supported by the barrier drive switching lever 101, and the barrier drive gear 100 is rotatably supported by the shutter base plate 81. There is. The gear portion 100a at one end of the barrier drive gear 100 is meshed with the large-diameter gear portion 99b of the two-stage gear 99, and the barrier drive gear portion 100b at the other end is the barrier drive ring 6a.
It meshes with the internal gear 69a of No. 9.

The barrier drive switching lever 101 is swingably supported by the shutter base plate 81, and the arm 1
01a is pushed by the interlocking plate 66 so that the gear 98 meshes with the gear portion 58b of the focus cam ring 58, and the pin 101b is pushed by the cam portion 60B of the front frame 60 so that the gear 98 moves the gear portion 58 of the focus cam ring 58.
Move between b and a position that does not mesh.

Next, the operation of the above focus drive mechanism will be described.

The operation of the mechanism will be described below with reference to FIGS.

First, when the release switch 429 is turned on, distance measurement is performed by an autofocus sensor described later. At this time, the amount of extension of the second lens group 142 and the third lens group 143 during the focus operation is calculated. Then, the target feed-out pulse number is obtained from the calculated feed-out amount.

Next, the focus motor 108 is rotated in the reverse direction to perform the lens reset operation. That is, when the focus motor 108 is rotated in the reverse direction, the focus cam ring 58
Rotates in the direction of arrow A in FIG. This allows
The stopper 58c of the focus cam ring 58 contacts the stopper 81d of the shutter base plate 81 and stops.

Next, the focus motor 108 is normally rotated. This allows the focus cam ring 58 to move to the position shown in FIG.
6 rotates in the direction of arrow B. At this time, the pulse signal from the photo interrupter 109 is monitored.
Then, the focus motor 108 is decelerated from the point in time when the pulse number reaches the above-mentioned target feed pulse number. Then, when the number of pulses from the photo interrupter 109 reaches the target number of pulses, the focus motor 1
08 is stopped.

As a result, the second lens group 142 and the third lens group 143 are extended according to the distance from the subject,
The focus operation ends. After that, the shutter is operated to perform the exposure.

Next, the lens barrier drive mechanism in the lens barrel will be described with reference to FIGS. 16 to 19.

The barrier drive switching lever 101 is swingably supported by the shutter base plate 81. Also, the gear 98
And the two-stage gear 99 is the barrier drive switching lever 1
01 solidly planted shafts are rotatably supported respectively. On the other hand, the barrier drive gear 100 includes the shutter base plate 8
1 is rotatably supported by the barrier drive gear 1
The gear 100a formed at one end of the gear 00 and the gear 99b of the two-stage gear 99 mesh with each other. Further, the gear 99a of the two-stage gear 99 meshes with the gear 98.

A position where the one end 101a of the barrier drive switching lever 101 is pushed by the end face of the interlocking plate 66 (see FIG. 5) when the lens is retracted to mesh with the gear 98 and the gear portion 58b of the focus cam ring 58. Then, the pin portion 101b is pushed by the cam portion 60c of the front frame 60, so that the gear 98 and the gear 58b oscillate between positions where they do not mesh with each other.

Further, in FIG. 20, FIG. 21, and FIG.
The barrier drive ring 69 is rotatably fitted to the tip portion 53f of the first lens group frame 53. An internal gear 69a is formed on the inner diameter portion of the barrier drive ring 69 and meshes with a gear portion 100b formed on the other end of the barrier drive gear 100.

A barrier spring 70 is fixed to the barrier drive ring 69. As a result, the barrier blade 71 is urged. The barrier blade 71 is swingably attached to the first lens group frame 53 about a boss 53d provided at the tip of the first lens group frame 53 as a swing center. Then, the protrusion 71c biased by the barrier spring 70, the protrusion 71a for driving the barrier blade 73 in the closed state, and the protrusion 73b of the barrier blade 73 in the opened state are biased. And a concave portion 71b for forming.

The barrier blade 73 is the barrier blade 7
As in the case of No. 1, it is swingably attached to the first lens group frame 53 with the boss 53d at the tip of the first lens group frame 53 as the swing center. The barrier blade 71 is urged by the projection 71a of the barrier blade 71 in the closed state, and the projection 73b is driven by the barrier blade 71 in the open state to perform the opening / closing operation. A cover ring 74 is attached to the tip of the first lens group frame 53, and regulates the positions of the barrier drive ring 69, the barrier blade 71, and the barrier blade 73 in the optical axis direction.

Next, the operation of the lens barrier drive mechanism will be described.

First, when the power SW is turned off, power is supplied to a zoom drive unit (not shown) and the zoom motor 201 rotates. As a result, the rotary frame 51 is rotated counterclockwise, and the first lens group frame 53 further moves to the retracted position. At this time, the middle frame 59 also moves to the retracted position by the movement of the first lens group frame 53. further,
The one end portion 101a of the barrier drive switching lever 101 is pressed by the interlocking plate 66 that rotates integrally with the inner frame 59, and the barrier drive switching lever 101 is swung (in the direction of arrow c in FIG. 16). The gear 98 and the gear 58b mesh with each other. That is, the power of the focus motor 108 is transmitted to the barrier drive gear 100.

Next, power is supplied to the focus motor 108. When the focus motor 108 rotates counterclockwise, power is transmitted to the barrier drive gear 100 via the gear train, and the barrier drive gear 100 rotates counterclockwise. As a result, since the gear portion 100b arranged at one end of the barrier drive gear 100 meshes with the internal gear 69a, the barrier drive ring 69 rotates counterclockwise. At this time, the barrier blade 71 presses the barrier blade 71, and the barrier blade 71 swings in the barrier closing direction. On the other hand, the barrier blade 73 is pushed by the protrusion 71a of the barrier blade 71 and also swings in the barrier closing direction. At this time, the pulse signal from the focus photo interrupter 109 is counted, and when the rotation of the focus motor 108 is detected by the predetermined number of pulses required for closing the barrier, the motor is stopped.

Next, the barrier opening operation will be described.

When the power SW is turned on, first, power is supplied to the focus motor 108 to rotate the focus motor 108 clockwise. As a result, the power of the focus motor 108 is transmitted and the barrier drive ring 69 rotates clockwise. Also, the barrier blade 71 is
The protrusion 71c of the barrier blade 71 is pushed by the barrier spring 70 and moves in the opening direction. On the other hand, the barrier blade 73
The protrusion 73b is pushed by the barrier blade 71, and also moves in the opening direction. At this time, the pulse signal from the focus photo interrupter 109 is counted in the same manner as when the focus motor 108 is closed, and the motor is stopped when it is detected that the focus motor 108 has rotated by a predetermined number of pulses.

Next, power is supplied to a zoom drive unit, which will be described later, and the zoom motor 201 rotates. As a result, the rotary frame 51 is rotated in the clockwise direction, and as a result, the first lens group frame 53 moves to a position where it can be photographed. Further, the middle frame 59 rotates with the movement of the first lens group frame 53.
That is, the front frame 60 rotates via the interlocking plate 66.

At this time, the cam portion 60c of the front frame 60 is
However, since the pin 101b of the barrier drive switching lever 101 is pushed, the barrier drive switching lever 101 swings to a position where the gear 98 and the gear 58b do not mesh with each other. As a result, the barrier drive gear 100 and the focus motor 108
The communication with is cut off, and normal shooting is possible.

According to the above-described embodiment, by making the connecting portion between the internal gear and the barrier drive gear into a substantially sealed state, it is possible to prevent dust and the like from entering this portion and prevent dust and sand from contacting the tooth flanks of the gear. It is possible to prevent inadequate operation or the like caused by being stuck to the gear and being sandwiched between the gears.

Further, since the barrier drive ring is rotationally fitted in the inner diameter portion, a space can be provided between the camera lower surface side of the outer peripheral portion where dust and the like tend to collect and the rotating member. Even if dust or the like is accumulated on this portion, it does not affect the operation of the rotating member, so that malfunction can be prevented.

Further, since the front end surfaces of the barrier drive ring and the lens frame which are adjacent to the rotary fitting portion are substantially flush with each other, dust or the like is less likely to collect at the mouth of the rotary fitting portion, and the fitting portion is dusty. It is possible to prevent a malfunction due to the entry of the.

Further, in the optical system of the zoom lens having a plurality of lens groups which are mutually moved during the focus operation while changing the distance between them during the zoom operation,
It is possible to provide a lens barrel having a structure in which the position of the lens group that is extended during the focus operation is maintained with high accuracy and the size in the radial direction is minimized. That is, the change of the group spacing due to the zooming of the focusing optical system,
The end face cam is provided on either one of the lens frame that rotates during zoom operation and the lens frame that is held so that it can move straight in the direction of the optical axis, and the cam follower is provided on the other side to prevent an increase in the radial dimension. Since the driving force at the time of zoom operation is transmitted to the focusing group by the thin plate-shaped connecting member, it can be mounted in a very small space, and as a result, other members can be efficiently arranged in the vacant space and, as a whole, A compact lens barrel can be realized.

Further, by using only a small number of simple members for the cam frame for transmitting the zooming driving force to the plurality of lens barrels, the lens barrels can be easily and highly accurately held, and the small lens barrel can be made low in size. Can be provided at cost.

Next, details of the shutter mechanism according to the embodiment of the present invention will be described.

FIG. 28 is an exploded perspective view of an essential part showing the structure of the shutter mechanism of this embodiment, in which the optical axis direction is shown vertically in the drawing. 29 and 30 are explanatory views of the operation of the shutter mechanism. FIG. 29 shows the state when the shutter is closed, and FIG. 30 shows the state when the shutter is open.

As shown in FIG. 28, behind the shutter base plate 81 (downward in the figure), the blade retainer 9 having a disk shape is formed.
3. A blade retainer 94 is fixedly provided on the shutter base plate 81. At the central portions of the blade retainer 93 and the blade retainer 94, openings 93b and 94 through which the photographing light flux passes, respectively.
b is formed, and a notch is formed in a part of the outer peripheral portion.

Two shutter blades 92A and 92B are arranged between the blade retainers 93 and 94. The shutter blade 92A and the shutter blade 92B
Is swingably attached to the shutter base plate 81 at swing centers 92a and 92b provided at the base ends thereof, and has a closed position for covering the openings of the blade retainer 93 and the blade retainer 94, and for exposure. It is designed to move between the open position where the photographing light flux passes. A long hole 92 is formed in the overlapping portion of the base ends of the shutter blades 92A and 92B.
c and 92d are bored so that a pin 90a of a shutter lever 90 described later can be inserted together with the notch.

On the circumference of the blade retainer 93, three slits 93a are formed at equal intervals. In FIG. 28, the blade presser 93 is provided with a blade presser 95 having an outer periphery smaller than the blade presser 93 on the upper surface. This feather presser 95
An elastic arm portion 95a is formed to extend outward from a position on the outer periphery facing the slit 93a of the blade retainer 93. Further, the elastic arm portion 95a has a tip portion bent downward from the middle in the drawing, the tip portion is fitted into the slit 93a, and the tip thereof is relative to the shutter blades 92A and 92B. Elastic contact is possible.

The tip of the elastic arm portion 95a elastically abuts the shutter blades 92A, 92B near the final region of the opening stroke of the shutter blades 92A, 92B to brake the shutter blades 92A, 92B. Has become.

The inner peripheral portion of the shutter base plate 81 is substantially U-shaped.
A shutter lever 90 having a character shape is pivotally supported by the shutter base plate 81 so as to be swingable about a cylindrical portion 90e extending upward in the drawing as a central axis. The pin 90a extending downward in the middle of one arm of the shutter lever 90 has the shutter blades 92A and 92A.
Long holes 92c and 92d formed in the overlapping portion of the base end portion of B
Is engaged with. Thereby, the shutter lever 90
Swings in the direction of the arrow in the figure, and the shutter blades 92A, 92
B is adapted to move between a closed position and an open position.

The arm portion of the shutter lever 90 further extends upward in the drawing in the direction opposite to the pin 90a to form an arm portion 90d, and further, the arm portion 90d.
A cam follower 90b facing a cam portion of a locking arm 96, which will be described later, is formed at the tip of the.

A toggle spring 91 is wound around the base end portion of the shutter lever 90, that is, the columnar portion 90e, and the one end of the toggle spring 91 is located at a predetermined position of the shutter base plate 81. In the provided locking portion 81a,
The other end is in contact with the arm portion 90d of the shutter lever 90. As a result, the shutter blades 92A,
92B is biased by the toggle spring 91 so as to be driven in the opening direction.

A plunger 111 having an iron core 112 is arranged near the other arm portion 90c of the shutter lever 90. The plunger 111 is fixed to the shutter base plate 81 so that the iron core 112 is attracted when power is supplied from a power source (not shown). The iron core 112 protruding from the plunger 111
The tip end portion is biased by a spring 113 in a protruding direction, and in a state where power is not supplied to the plunger 111, the tip end portion abuts against the other arm portion 90c of the shutter lever 90 and presses it. The shutter blades 92A and 92B are urged by a strong force in a direction to close them.

FIG. 31 is a side view showing the shutter lever and the locking arm and their peripheral portions in the shutter mechanism of this embodiment.

As shown in the drawing, the locking arm 96 is provided on the shutter base plate 81 (see FIG. 28) so as to be pivotally supported in the direction of arrow P in the drawing. The locking arm 96
The winding part of the toggle spring 97 is wound around the base end of the toggle spring 97, and one end of the toggle spring 97 abuts on the locking part 81b.
The other end has a swinging part 96 formed in a fan shape of the locking arm 96.
It is hung on one side of d. As a result, the swinging portion 9
6d is urged upward in the drawing to move the swinging portion 96d.
The tip end of the cam follower 96c extending upward from the other side in the drawing is in contact with the cam portion 60B of the front frame 60. Since the cam portion 60B is deviated in the circumferential direction, when the front frame 60 rotates in the direction of arrow Q in the drawing, the locking arm 96 swings in the direction of arrow P. Has become.

FIG. 32 shows the locking arm 96 and the shutter lever 9 seen from the direction of arrow A in FIG.
0 is shown.

A cam surface 96b is formed at the tip of the swinging portion 96d of the locking arm 96. When the shutter blade is opened, the cam surface 96b is formed at the tip of the arm 90d of the shutter lever 90. The cam follower 90b thus abutted is brought into contact with and stopped. That is, the cam surface 9
The opening diameter when the shutter blades are opened is regulated by 6b. When the shutter blades are closed, the shutter lever 90 is arranged apart from the cam surface 96b.

By the way, when the shutter blade is opened,
Due to the repulsive force of the shutter blades 92A and 92B and the repulsive force of the shutter lever 90 and the locking arm 96, the shutter blades 92A and 92B bounce and move in the closing direction.
It is considered that accurate exposure cannot be obtained. Therefore, in the shutter mechanism of the present embodiment, the shutter blade 92
The elastic arms 95a of the blade retainer 95 are elastically brought into contact with A and 92B themselves near the end of the opening stroke to brake the shutter blades to prevent bounce.

Next, the aperture correction mechanism in the shutter mechanism of this embodiment will be described.

In this embodiment, the shutter lever 90 is brought into contact with the cam portion 96b of the locking arm 96 to determine the opening diameter when the shutter is opened. By the way, when the shutter lever 90 contacts the cam portion 96b, an impact force is applied to the cam portion 60B of the front frame 60. Therefore, the cam portion 60B is formed as a part of the lens barrel,
When the impact force is in the same direction as the moving direction of the cam, the cam is moved by the impact force, so that the impact force is transmitted to the lens barrel and the lens barrel moves.

As a result, the image formed on the film surface moves, the sharpness of the image formed on the film disappears, and the image becomes blurred. Therefore, in the present embodiment, the impact force is applied to the locking arm 96 so that the impact force is applied to the locking arm 96.
The swinging force of 6 is not used. Further, the reaction force of the impact force between the shutter lever 90 and the locking arm 96 is prevented from being directly transmitted to the lens barrel.

Next, the shutter / bounce prevention mechanism of the shutter mechanism in this embodiment will be described.

In this embodiment, in order to prevent shutter bounce, the elastic blade 95a is brought into contact with the shutter blades 92A and 92B themselves to brake the shutter blades.

By the way, in the mechanism of the lens shutter system in which the relationship between the time and the aperture diameter is determined by the toggle spring 91 as in this embodiment, the force of the toggle spring 91 is very small. Therefore, the elastic arm portion 95a and the shutter blade 92 are
It is required that the amount of contact force between A and 92B is stable. If this force is large, the shutter blades 92A, 9A
2B malfunctions, and if it is small, the bounce becomes large.

FIG. 33 is a side sectional view showing the elastic arm portion 95a and its peripheral portion.

In order to stabilize the contact force amount between the elastic arm portion 95a and the shutter blades 92A and 92B described above, FIG.
As shown in, the plane portion of the blade presser 95 and the elastic arm portion 95a
The size of the difference (height) h from the tip is required to be stable. The elastic arm portion 95a and the shutter blades 92A, 9
It is desirable that the amount of force of contact with 2B is very small and the spring constant is small. Therefore, it is preferable that the longitudinal coefficient is small. However, such a material has poor workability and the height h of the elastic arm portion 95a is not stable. Further, for example, when the elastic arm portion 95a is manufactured by using a material such as PET (polyester film), the height h changes depending on temperature and humidity. That is, as shown in FIG. 34, a deviation of Δh occurs.

In the present embodiment, the above-mentioned slit 93a is provided in the blade presser 93, and the elastic arm portion 95a is inserted into this slit 93a. As a result, the height h of the elastic arm portion 95a is determined by the two points of the end faces 93a ′ and 93a ″ of the slit 93a, and the height h is stable.

Next, the barrier opening / closing operation of the shutter mechanism in this embodiment will be described.

When shifting from the short focus state to the retracted state,
The interlocking plate 66 energizes the barrier drive switching lever 101 to bring the gear train of the focus drive unit and the gear train of the barrier drive unit into a connected state. When the focus drive unit is driven in this state, the barrier drive gear 100 rotates,
When the barrier drive ring 69 rotates, the barrier blade 71 and the barrier blade 73 of the barrier member open and close.

Next, the operation of the shutter mechanism in this embodiment will be described.

First, when the release switch 249 is turned on, photometry is performed to determine the exposure. This sets the time of the timer that determines the exposure time. Next, when the plunger 111 is energized, the iron core 112 is attracted and the iron core 112 retracts from the shutter closed position of the shutter lever 90. As a result, the shutter lever 9
0 is rotated by the biasing force of the toggle spring 91, and the shutter blades 92A and 92B move toward the open position (see FIG. 30).

Thereafter, the tip portions of the shutter blades 92A and 92B cross the shutter photo reflector 110,
The shutter photo reflector 110 is turned on.

A timer is started by a signal from the shutter photo reflector 110, and the plunger 111 is turned off when the count value reaches a preset count value.

As a result, the iron core 112 of the plunger 111 is pushed out by the spring 113, and the tip portion b of the iron core 112 pushes the other arm portion 90c of the shutter lever 90 in the direction indicated by the arrow X in FIG. The shutter lever 90 swings in the closing direction of the shutter blades 92A and 92B, the shutter blades 92A and 92B are closed, and the exposure is completed.

When the timer is longer than the fixed time, the arm portion 90b of the shutter lever 90 comes into contact with the cam surface 96c of the locking arm 96 and stops. The shutter opening waveform at this time has a trapezoidal shape as shown in FIG. When the shutter blades 92A, 92B bounce, the opening waveform becomes non-trapezoidal as shown in FIG. 36, but in the present embodiment, the shutter blades 92A, 92B are braked as described above. Since no bounce occurs, the opening waveform is as shown in FIG.
As shown in.

According to the shutter mechanism of this embodiment having such a structure, the height of the bent portion of the elastic arm portion 95a can be stabilized, so that the shutter blades 92A, 92B can be braked stably. be able to. Therefore, the shutter blades are prevented from bouncing, and accurate exposure can be obtained.

Next, the drive system of the camera body will be described.

FIG. 37 is a schematic diagram showing the main part of the camera of this embodiment, and FIG. 38 is a perspective view showing the main part of the camera.

39 to 42 are plan views showing main gear trains in respective operating states of the camera main part, and FIG. 39 shows a state when the zooming operation is possible.
FIG. 40 shows a state when the film winding operation is possible,
FIG. 41 shows a state when the film rewinding operation is possible,
FIG. 42 shows states when the photographing screen size switching operation is possible.

In this camera, as shown in FIG. 38, a main body drive motor 201 is arranged in a spool 217 in a known manner. Note that in FIG. 37, the main body drive motor 201 and the spool 217 are shown separately for the sake of explanation. The main body drive motor 201 has a CW direction and a CC
It is possible to rotate in the W direction. Sun gear 202
Is attached to the main body drive motor 201 in a state of being coincident with the rotation center thereof, and the planetary gear 203 is
It is supported so as to always mesh with the sun gear 202. Further, the carrier 204 is the main body drive motor 2 described above.
01 and the center of rotation coincide with each other, and support the planetary gear 203 with a frictional force.

The stopper 205 is a fixed member that regulates the rotation angle of the carrier 204, and the switching plunger 206 includes the coil 206a and the plunger iron core 20.
The rotation of the carrier 204 is regulated by an actuator composed of 6b and a plunger spring 206c.

The coil 206a is not normally energized, the plunger iron core 206b is biased by the plunger spring 206c and is in a protruding state, and the carrier 204 is sandwiched between it and the stopper 205. .
On the other hand, when the coil 206a is energized, the plunger iron core 206b is attracted to the coil 206a, the sandwiched state of the carrier 204 is released, and the carrier 204 is within the regulation range of the stopper 205.
It becomes rotatable by the driving force of 01.

When the power supply to the coil 206a is stopped when the carrier 204 is rotated to the vicinity of the rotation limit by the stopper 205, the plunger iron core 206b is projected by the urging force of the plunger spring 206c and the carrier 20
4 is again clamped between the stopper 205 and the carrier 205,
04 rotation is restricted.

By the above-mentioned operation, the planetary gear 20
The gear 3 is selectively meshed with either one of a first zoom gear 209 and a hoisting sun gear 208 described later.

The carrier photo interrupter 207 (hereinafter referred to as the carrier PI 207) is the above carrier 20.
4 is a photo interrupter for detecting the position, and the hoisting sun gear 208 meshes with the planetary gear 203 when the main body drive motor 201 rotates in the CW direction and the carrier 204 rotates. ing.

The first zoom gear 209 meshes with the planetary gear 203 when the main body drive motor 201 rotates in the CCW direction and the carrier 204 rotates. In addition, the second zoom gear 210,
The third zoom gear 225, the fourth zoom gear 226, and the fifth zoom gear 227 are the first zoom gear 209.
It is designed to rotate following the rotation of. Second above
Zoom gear 210 and the third zoom gear 225
Is a two-stage spur gear, and the fourth zoom gear 226 and the fifth zoom gear 227 are two-stage gears, one of which is a bevel gear, and change the rotation direction. The other gear of the fifth zoom gear 227 is a spur gear, meshes with the gear 51a of the rotary frame 51, and rotates the rotary frame 51.

Zoom photo interrupter idle gear (hereinafter abbreviated as zoom PI idle gear) 211
Is a gear driven by the fourth zoom gear 226, and a zoom photo interrupter gear (hereinafter abbreviated as a zoom PI gear) 212 is driven by the zoom PI idle gear 211. The slit portion 212a is formed.

The zoom photo interrupter 213 (hereinafter,
The zoom PI 213) is adapted to read a pulse signal by the rotation of the slit portion 212a of the zoom PI gear 212, thereby detecting the rotation amount of the rotary frame 51.

The check member 214 is urged toward the first zoom gear 209 by a check spring 232 which is a compression spring, and a tip portion thereof has a claw 214a which is tapered toward the tip. ing. The check member 21
4 is the sun gear 20 wound by the planetary gear 203.
8, the claw 214a is interposed between the teeth of the first zoom gear 209, thereby preventing the rotating frame 51 from rotating carelessly by an external force. . When the planetary gear 203 meshes with the first zoom gear 209, the carrier 204
By means of the claw 204a of the
The rotating frame 51 can be freely rotated by removing the rotating frame 51.

The hoisting planetary gear 215 is connected and supported by the hoisting carrier 216 so as to always mesh with the hoisting sun gear 208. That is, the hoisting carrier 216 is arranged so that the center of rotation of the hoisting carrier 216 coincides with that of the hoisting sun gear 208, and supports the hoisting planetary gear 215 with a frictional force.

As described above, the main body drive motor 201 is disposed inside the spool 217, and the gear 217a is formed on the outer peripheral surface of the lower portion. Further, when the main body drive motor 201 is rotated in the CW direction, the winding carrier 216 rotates to the spool 217 side,
The winding planetary gear 215 and the spool 217 mesh with each other and rotate. Further, on the outer peripheral surface of the upper portion of the spool 217, a claw 217b engaging with a perforation hole of the film is formed so as to project therefrom.
The film is wound by rotating.

The locking lever 218 is swingable in the middle of both ends so that one arm 218a engages with the plunger iron core 206b of the switching plunger 206 and the other arm 218b locks the carrier 204. When the plunger core 206b is supported and attracted to the coil 206a, the carrier 204 is unlocked.

The panoramic sun gear 219 engages with the hoisting planetary gear 215 when the main body drive motor 201 rotates in the CCW direction while the planetary gear 203 engages with the hoisting sun gear 208. . The panoramic planetary gear 220 is supported so as to always mesh with the panoramic sun gear 219. The panoramic carrier 221 is arranged at a position where the center of rotation of the panoramic sun gear 219 coincides with the panoramic sun gear 219, supports the panoramic planetary gear 220 with a frictional force, and serves as the center of rotation of the panoramic planetary gear 220. Moreover, a shaft 221a extending below the panoramic planetary gear 220 is formed.

The cam gear 222 is a gear for switching the photographing screen size, and when the main body drive motor 201 is rotated in the CCW direction while the planetary gear 203 is meshing with the hoisting sun gear 208, the hoisting is performed. The carrier 216 has the above-mentioned panoramic sun gear 219.
When the panning planetary gear 215 is rotated to the side, the hoisting planetary gear 215 meshes with the panoramic sun gear 219 to rotate it. In addition, the panoramic carrier 221 is rotated by the panoramic sun gear 219 to move the cam gear 22.
It rotates to the 2 side and the panoramic planetary gear 220 and the cam gear 222 mesh and rotate.

Further, a second cam 222b for operating the screen size detection switch 245 for detecting the state of the two light-shielding masks 242, 243 is formed above the cam gear 222, and the second cam 222b is formed. A first cam 222a for moving the two light-shielding masks 242 and 243 is formed further above.

The switching lever 223 has a panoramic planetary gear 220 of the panorama carrier 221 at one arm end thereof.
A groove 223a that engages with a shaft 221a that supports the shaft 221a is bored, and a projection 223b is vertically provided on the other arm end portion of the switching lever 223. The protrusion 223b is provided on the rotary frame 51 with respect to the cam 51d formed on the rotary frame 51.
The rotation of 1 makes contact.

The switching lever 223 is rotatably supported by a support shaft in the middle thereof, and is rotated at the other arm end by the rotation of the cam 51d of the rotary frame 51 to be engaged with the one arm end part. The panoramic carrier 221 is rotated. This allows the panoramic planetary gear 220
Engages with the first rewinding gear 224.

On the other hand, when the cam 51d of the rotary frame 51 and the protrusion 223b are in a separated position, the switching lever 223 is driven by the panoramic carrier 221.

The first rewinding gear 224 and the second
Rewinding gear 228, third rewinding gear 229, fourth rewinding gear 230, fifth rewinding gear 231
Are each driven by the rotation of the panoramic planetary gear 220. The first rewinding gear 2
Reference numeral 24 is a two-stage spur gear, and the fifth rewinding gear 23
Reference numeral 1 denotes a spool shaft in a patrone (not shown), the center of rotation of which is aligned with that of the spool shaft. A fork (not shown) for rotating the spool shaft (not shown) to rewind the film is provided. .

43 to 53 are explanatory views showing the panorama switching mechanism of this embodiment.

FIG. 43 is a perspective view showing the entire panorama switching mechanism, and FIGS. 44 to 47 are plan views showing cam gears in the camera. Also, FIG.
8 is a main part front view showing a panorama switching mechanism in a state where a wide shooting screen size is selected in the camera, and FIG. 49 is a main part showing a panorama switching mechanism in a state where a narrow shooting screen size is selected in the camera. It is a front view. Further, FIG. 50 is a side view of an essential part showing a panorama switching mechanism in a state where a wide shooting screen size is selected in the camera, and FIG. 51 is a panorama switching mechanism in a state where a narrow shooting screen size in the camera is selected. It is a principal part side view shown. Also, FIG.
FIG. 53 is a side view of a main part showing a panorama switching mechanism in a state in which a wide shooting screen size is selected in the camera, viewed from the opposite direction to FIG. 50, and FIG. 53 is a narrow shooting screen size selected in the camera. FIG. 52 is a side view of a main part, showing the panorama switching mechanism in the opened state, as viewed from the direction opposite to that in FIG.

As shown in FIG. 43, the first panoramic gear 240 is supported by a main plate (not shown) at a swing center 240d so as to be swingable in the vertical direction in the figure. In addition, a cam gear 222 is provided below the first panoramic gear 240.
An arm 240a, which is a cam follower that abuts against the first cam 222a, is formed, and the rotation of the cam gear 222 causes the first panoramic gear 240 to swing about the swing center 240d as a fulcrum. ing. The first
The end of one arm of the panorama gear 240 is a partial gear 240
b, and a partial gear 240c is formed at the tip of the other arm, respectively.
2, meshes with the second panoramic gear 241.

The second panoramic gear 241 is shown in FIG.
As shown in FIG. 5, a swing plate 241d is swingably supported by a main plate (not shown) in the vertical direction in the figure, and a partial gear 241a is formed at the tip of one arm portion. Mesh with gear 240b,
The first panoramic gear 240 swings in cooperation with the rotation. A partial gear 241b is formed at the tip of the other arm and meshes with the upper light-shielding mask 243.

Both the lower light-shielding mask 242 and the upper light-shielding mask 243 are supported at their base ends by a fixed shaft 239 (not shown) so as to be vertically movable in FIG. The fixed shaft 239 is supported by a base plate (not shown). The lower light-shielding mask 242 is movable in the axial direction of the fixed shaft 239, and the light-shielding portion 242a moves into or out of the photographing aperture opening 4c of the main body 4 by the movement. The lower light-shielding mask 242 is moved in accordance with the swing of the first panoramic gear 240 that meshes with the gear 242b formed on one side surface of the base end portion.

The upper light-shielding mask 243 is supported together with the lower light-shielding mask 242 so as to be movable in the axial direction by a fixed shaft 239 (not shown). The upper light-shielding mask 243
The movement of the light shielding part 243a causes the light shielding part 243a to move in and out of the photographing opening 4c of the main body. The upper light-shielding mask 243 is moved in accordance with the swing of the second panoramic gear 241 that meshes with the gear 243b formed on one side surface of the base end portion. A gear portion 243c is formed so as to project from the upper surface of the base end portion of the upper light-shielding mask 243, and meshes with a panorama switching gear 171 that transmits power to the finder portion.

The upper and lower light-shielding masks 242,
A panorama spring 244, which is an elastic member that elastically couples the light-shielding mask, is disposed between the base ends of 243. In this embodiment, the panorama spring 244 urges the light-shielding masks 242 and 243 toward each other, and at the same time, the arm portion 24 of the first panorama gear 240.
The contact force to the cam gear 222 at 0a is generated.

The screen size detection switch 245 is fixed to a base plate (not shown), and the contact piece is the second part of the cam gear 222.
It is in contact with the cam 222b. The screen size detection switch 245 is rotated by the rotation of the cam gear 222.
The ON / OFF (hereinafter abbreviated as PN detection SW 245) is performed.

The date holder 246 is fixed to the upper light-shielding mask 243, and has a date lens 248 and a light emitting LED.
247 is supported, and is moved integrally with the movement of the upper light-shielding mask 243. In addition, light-shielding protrusions 246a and 246b are provided at the rear end of the film, and when shooting with a wider screen size (standard screen size), the hole 4e of the main body is shielded by 246b, and the film is exposed to harmful light. It is designed to prevent on the other hand,
At the time of shooting with a narrower screen size (panoramic screen size), 246a shields 4d from light, and similarly, exposure of the film due to harmful light is prevented.

The light emitting LED 247 is a light emitting element that is supported by the date holder 246 and is used to transfer data onto the film. The date lens 248 is a lens that is supported by the date holder 246 and forms an image of the light emitted by the light emitting LED 247 on the film. Further, a film photoreflector 249 (hereinafter abbreviated as film PR249) is arranged at a position facing the perforation hole of the film, and reads the movement of the perforation hole to generate and output a pulse signal. There is.

The main body 4 has a photographing opening 4c for exposing the film 13, and a hole 4d for imprinting a date when the screen size is in a standard state and a screen size in a panoramic state. Sometimes it has a hole 4e for imprinting a date.

According to this embodiment, each motor can perform the zooming operation, the film winding operation, the film rewinding operation, and the photographing screen size switching operation. The operation will be described below.

First, the zooming operation will be described with reference to FIG.

FIG. 39 is a plan view showing the main gear train when the zooming operation is possible. As shown in FIG. 39, zooming becomes possible when the planetary gear 203 meshes with the first zoom gear 209. At this time, the main body drive motor 201 is energized and rotated to rotate the first zoom gear 209 to the fifth zoom gear 227, thereby rotating the rotary frame 51 and the zoom PI gear 212 to rotate the rotary frame 51. Detect the amount of rotation. Further, as shown in FIG. 37, a zoom encoder pattern sheet 76 is attached to the rotary frame 51,
The zoom photo reflector 139 is placed at a position facing this.
(Hereinafter, abbreviated as zoom PR139) is provided. Thus, the reference rotation position of the rotation frame 51 is detected, and the fine rotation amount is detected by the output from the zoom PI 213.

When the main body drive motor 201 is rotated in the CW direction, it is extended from the retracted state to the wide-angle state and zoomed to the telephoto side, and when rotated in the CCW direction, zoomed to the wide-angle side. The lens barrel is retracted in the final area. The zoom encoder pattern sheet 76 is provided so that the output of the zoom PR 139 changes as follows. That is, the "L" level is from the retracted region to the wide end, the "H" level is from the wide end position to the tele end, and the "L" level is the tele end.

Next, the film winding operation will be described with reference to FIG.

FIG. 40 is a plan view showing a main gear train when the film winding operation is possible. This FIG.
As shown in (3), winding is possible when the planetary gear 203 meshes with the winding sun gear 208. At this time, when the main body drive motor 201 is energized and rotated in the CW direction, the hoisting planetary gear 215 causes the spool 21 to rotate.
7 and meshes with it to rotate the spool 217. The amount of movement of the film 13 wound by the spool 217 is detected by the film PR249.

Next, the film rewinding operation will be described with reference to FIG.

FIG. 41 is a plan view showing the main gear train when the film rewinding operation is possible. This FIG.
, The planetary gear 203 meshes with the hoisting sun gear 208, and the panorama carrier 221 is rotated to the first rewinding gear 224 side by the rotation of the rotary frame 51, and the panoramic planetary gear 220 is Rewinding is possible when meshed with the first rewinding gear 224. In the present embodiment, when retracted, the cam 51d of the rotary frame 51 rotates the projection 223b of the switching lever 223 to enable rewinding. Therefore, rewinding is impossible when the lens frame is not in the retracted position. Rewinding is performed when the main body drive motor 201 rotates in the CCW direction.

During the rewinding, a rotational force acts on the switching lever 223 in the counterclockwise direction due to the reaction force generated when the panoramic planetary gear 220 and the first rewinding gear 224 mesh with each other. The end portion 51d 'of the cam 51d is a surface perpendicular to the optical axis so that the rotary frame 51 does not rotate.

Next, the photographing screen size switching operation will be described with reference to FIG.

FIG. 42 is a plan view showing the main gear train when the photographing screen size switching operation is possible. This Figure 4
As shown in FIG. 2, when the planetary gear 203 meshes with the hoisting sun gear 208 and the switching lever 223 is free with respect to the cam 51d of the rotary frame 51, the screen size can be switched. Therefore, it is impossible to switch the screen size when the lens frame is collapsed.

When it is desired to change the screen size when the planetary gear 203 is meshed with the first zoom gear 209, first, the planetary gear 20 is to be changed.
3 must mesh with the hoisting sun gear 208. For that purpose, first, the coil 206a is energized,
The carrier 204 is unlocked, and then the main body drive motor 201 is energized to rotate in the CW direction.
4 is rotated. At this time, if the main body drive motor 201 is continuously energized, the rotation direction of the main body drive motor 201 for rotating the carrier and the rotation direction of the main body drive motor 201 for winding the film. Since the same is the case, there is a problem that the spool rotates and the film is wound up. For example, if zooming and screen size switching are performed alternately, the filmer will be gradually wound up even though the photographer has not taken any pictures.

In order to solve this inconvenience, in the present embodiment, the carrier 204 is wound up by the sun gear 20.
When rotating to the 8 side, the drive voltage of the main body drive motor 201 is lowered, and the carrier 204 is controlled to rotate with a weak force that does not wind the film. Further, in order to shorten the energization time to the main body drive motor 201 as much as possible, a carrier PI 207 is provided as a photo interrupter for detecting the position of the carrier 204.

Also, the pulse output from the carrier PI 207 is changed immediately before the rotation of the carrier 204 toward the winding sun gear 208 is completed, and the pulse output is detected to the main body drive motor 201. Main body drive motor 20
The energization time of 1 can be minimized. With this method, the present embodiment solves the problem of film winding when switching the screen size.

Now, the main body drive motor 201 is a CCW.
When rotated in the direction, the panoramic planetary gear 220 meshes with the cam gear 222 and rotates the cam gear 222. The screen size switching procedure by the rotation of the cam gear 222 will be described below.

The screen size switching mechanism is constructed as shown in FIG. 43. The first panoramic gear 240 is rotated by the rotation of the cam gear 222, and the lower light shielding mask 242 and the upper light shielding mask 243 have only the center line. The screen size is switched by moving in parallel with the fixed shaft 239 (not shown) and repeatedly advancing and retracting with respect to the photographing opening 4c. Hereinafter, the relationship between the position of the cam gear 222 and the screen size will be described.

FIG. 44 is a plan view showing the positional relationship between the cam gear 222 and the arm 240a of the first panoramic gear 240 in the standard screen size in this embodiment. In the figure, reference numeral 222c indicates the first cam 222a.
Of the standard screen size of the
Reference numeral 22d indicates a range held by the panorama screen size.

In the state shown in FIG. 44, the upper light-shielding mask 242 and the lower light-shielding mask 243 are both retracted outside the photographing opening 4c to keep the screen size in the standard state. At this time, the screen size detection switch 2
45 is held in the off state by the second cam 222b of the cam gear 222. Then, when the photographer operates an operation member (not shown) for photographing in the panorama screen size, the main body drive motor 201 is energized and the cam gear 222 starts rotating.

FIG. 45 is a plan view showing a state at the moment when the arm portion 240a of the first panoramic gear 240 is rotated toward the center of the cam gear 222.

At this time, both the lower light-shielding mask 242 and the upper light-shielding mask 243 have moved to the panorama screen size position, but the screen size detection switch 245 is still in the off state.

FIG. 46 is a plan view showing a state where the cam gear 222 is slightly rotated from the state shown in FIG.

At this time, the screen size detection switch 2
45 is turned on, and the screen size detection switch 24
When the state change of No. 5 is detected, the main body drive motor 201 is de-energized and the cam gear 222 is stopped from rotating. The switching to the panoramic screen size is executed by the above procedure. Further, by thus providing a time lag between the movement of the light-shielding mask and the change in the state of the screen size detection switch 245, the certainty of switching the light-shielding mask is guaranteed.

Further, by moving the upper light-shielding mask 243 to the panorama screen size position, the eyepiece variable magnification lens frame 1
67 moves, and the visual field mask portion 167a and the eyepiece variable magnification lens 15 which are integrally provided in the viewfinder optical path 167 are provided.
7 enters, the viewfinder field changes to a shape similar or close to the screen size of the narrower one, and the observation magnification changes, so that the photographer can recognize that the photographing mode has changed.

Further, regarding the dimensional accuracy of the screen size in the above-mentioned operation, the screen size in the direction of the fixed shaft 139 is the lower light shielding mask 242, the upper light shielding mask 243.
It is obtained by the application of. Therefore, the error due to the variation of the outer shapes of other components is not affected, and the accurate screen size can be obtained. Therefore, at this time, the first cam 222a of the cam gear 222 and the arm portion 2 of the first panoramic gear 240 are
It is not in contact with 40a.

Regarding the displacement of the screen with respect to the center of the screen during the above-described operation, the first panoramic gear 240 and the second panoramic gear 241 are exactly reflected in the mirror with respect to the center of the screen by using the mechanism of this embodiment. Since the light-shielding portions 242a and 243a of the lower light-shielding mask 242 and the upper light-shielding mask 243 are arranged symmetrically with respect to the center of the screen, these light-shielding portions are moved with respect to the center of the screen. It moves symmetrically as if it were reflected in a mirror. Therefore, it is possible to obtain the center of the screen with high accuracy without using a structure for obtaining the center position accuracy.

Next, when the photographer operates an operation member (not shown) for switching to the standard screen size, the main body drive motor 201 is energized and the cam gear 222 starts rotating.

FIG. 47 shows the first panoramic gear 240.
Arm 240a of the first cam 2 of the cam gear 222.
FIG. 22 is a plan view showing a state in which the cam gear is rotated away from the center of the cam gear 222 by 22a.

At this time, the lower light-shielding mask 242 and the upper light-shielding mask 243 are moved to the standard screen size position, but the screen size detection switch 245 is still on. When the cam gear 222 slightly rotates from this state, the screen size detection switch 245 changes to the OFF state while the masks remain in the standard screen size position, and this state change is detected, and the main body drive motor 201 is energized. Stop the rotation of the cam gear 222. Therefore, this returns to the state shown in FIG.

Switching to the standard screen size is executed by the procedure described above. Further, by thus providing a time lag between the movement of the light-shielding mask and the change in the state of the screen size detection switch 245, the certainty of switching the light-shielding mask is guaranteed.

Further, the eyepiece variable magnification lens frame 167 moves due to the movement of the upper light-shielding mask 243 to the standard screen size, and the visual field mask section 1 which has entered the finder optical path.
67a, the variable power lens 157 retracts from the optical path,
It is possible to let the photographer recognize that the photographing mode has changed.

Next, the data transfer device will be described. In the present embodiment, the data imprinting is performed by imprinting the data while the film is being fed.

The light emitting LED 247 can emit data of one character by emitting light once, and emits light a plurality of times during the feeding of the film to form data of a character string. The light emitted from the light emitting LED 247 passes through the date lens 248 to form an image on the film, and data is imprinted. The light emitting LED 247 and the date lens 248 are supported by the date holder 246, and the date holder 246 is fixed to the upper light-shielding mask 243. Therefore, since the date holder 246 is also moved by the movement of the upper light-shielding mask 243, the position where the data is imprinted is also changed by switching the screen size, and the data is also recorded on the photograph produced at the panoramic screen size. Printed.

54 to 57 are explanatory views showing the film feed amount detecting means in this embodiment.

The main body 4 has a cartridge chamber 4a at both ends thereof,
A spool chamber 4b is formed, and an exposure opening (aperture) 4c is formed between the cartridge chamber 4a and the spool chamber 4b. Further, holes 4d and 4e for imprinting data are provided so that the data can be imprinted on the film through the holes.

The lens frame unit 2 includes the taking lens 14
0 is supported and is fixed to the main body 4. The taking lens 140 is a taking lens that forms a subject image on the film 13, and is provided in the lens frame unit 2. Further, the spool 217 is rotatably arranged in the center of the spool chamber 4b of the main body 4, and
The winding operation of 3 is performed. Further, the cartridge 12 is housed in the cartridge chamber 4a of the main body 4, and the film 13 is wound inside. In this embodiment, a 35 mm roll film is used as the film 13.

As shown in FIGS. 56 and 57, the roller 260 is composed of a cylindrical portion 260a that abuts on the film 13 and a polygonal column portion 260b whose surfaces are uniform reflecting surfaces. In addition, an axis (not shown) passes through the center of the roller 2
60 is rotatably supported. The shaft (not shown) is fixed to the main body 4, and the roller 260 is the film 1.
By the movement of 3, it is designed to be driven to rotate.

The data imprinting timing photoreflector 261 (hereinafter abbreviated as data PR261) is a polygonal column portion 260b formed by the reflecting surface of the roller 260.
It is arranged at a position facing. And the roller 2
When the reflection surface of the polygonal column portion 260b and the data PR261 face parallel to each other by the rotation of 60, the data PR
The light emitted from 261 is reflected by the reflecting surface and returns to the data PR 261 again. As a result, the data PR
An output pulse from 261 is generated.

The leaf spring 262 is fixed to the rear lid 25 and elastically abuts on the cylindrical portion 260a of the roller 260.
The pressure plate 263 is attached to the rear lid 25 via a pressure plate spring 264 to prevent the film 13 from floating and enhance the flatness of the film 13. The pressure plate spring 2
Reference numeral 64 denotes an urging means for elastically urging the pressure plate 263 toward the main body 4 side, which is attached to the rear lid 25.

The light emitting LED 248 is a light emitting element having 7 segments for data imprinting, and is capable of expressing one character of data by one light emission, and is supported by the date holder 246. . Also,
The date lens 247 is a lens for forming an image of a character formed by the light emission of the light emitting LED 248 on the film 13, and is also supported by the date holder 246.

As described above, the date holder 246 supports the light emitting LED 248 and the date lens 247, and is fixed to the upper light-shielding mask 242.
In addition, the center of the hole 4d or 4e of the body 4 and the light emission L
The ED 248 and the date lens 247 are vertically moved to such positions that the centers thereof are coaxial.

In FIG. 54, reference numeral 11 is a main capacitor for strobe light, and reference numeral 10 is two power supply batteries. In addition, the film PR249 is the film 13
Is provided at a position opposed to the perforation of the photoreflector, and the number of the perforations passing by the output pulse signal of the photoreflector 249 is counted to feed the film by one frame. Further, reference numeral 21 is a front side cover which is an exterior part of the camera, and reference numeral 24 is a rear side cover, which rotatably supports the back cover 25.

A hinge portion is formed at one end of the back lid 25, and the back lid 25 is supported by the rear cover 24 with the hinge portion as the center of rotation and can be opened and closed. Further, the leaf spring 262 and the pressure leaf spring 264 are attached. The back cover shaft 26 is a shaft that rotatably supports the back cover 25 and the rear cover 24. Further, reference numeral 27 is a side cover which is an exterior part of the camera,
Reference numerals 7 and 38 denote operation buttons, and reference numeral 40 denotes a finder window.

Next, the operation of the roller 260 will be described.

As shown in FIG. 54, the spool 217 is rotated by the rotation of the main body drive motor 201, and when the film 13 is wound up, the roller 260 is driven to rotate by the film 13. When the roller 260 is rotated, in order to improve the followability with respect to the movement of the roller 260 and the film 13, it is necessary to increase the pressure contact force between the roller 260 and the film 13 to some extent. Therefore, as described above, the leaf spring 262 that is elastically pressed against the roller 260 is attached to the back cover 25. This leaf spring 26
Since 2 is attached to the back cover 25, when the back cover 25 is opened, the pressure contact between the roller 260 and the leaf spring 262 is released. Here, when the cartridge 12 is loaded and the back lid 25 is closed by aligning the tip of the film 13 with an automatic loading index (not shown), the film 13 is sandwiched between the roller 260 and the leaf spring 262, and the elasticity of the leaf spring 262 is increased. Roller 26 by force
It is contacted with 0.

The roller 260 is arranged in the film advancing direction in the vicinity of the inlet of the spool chamber 4b of the main body 4 and in a direction substantially parallel to the exposure opening 4c because the film 13 is wound around the spool 217. From spool 217
By disposing the film 13 at a position where the direction is changed toward, the force with which the film 13 contacts the roller 260 can be further increased.

In this embodiment, the roller 2 is thus arranged.
The ability of 60 to follow the movement of the film 13 is improved.

Next, the arrangement position of the roller 260 in the direction orthogonal to the film advancing direction will be described.

In the present embodiment, the arrangement position of the film contact portion 260a of the roller 260 is taken into consideration. That is, the film contact portion 260a is attached to the film 1
If it is arranged in a position where it abuts the photographing screen portion of 3, the film may be damaged, and if it is arranged so that it abuts the perforation hole portion, the followability of the roller 260 to the movement of the film 13 becomes poor. In this embodiment, the film contact portion 260a of the roller 260 is arranged at a position where it contacts the outer edge of the perforation hole of the film 13. FIG. 56 shows an example in which the roller 260 is arranged at the optimum position.

A pulse signal is generated in the data PR261 by the rotation of the roller 260, and the film feed amount can be calculated by counting the number of pulses. For example, if the diameter of the roller 260 is set so as to be equal to the winding amount for one frame of film when the roller 260 rotates 10 times and the polygonal column portion 260b is a regular hexagonal column, the number of output pulses per frame is 10 (rotation) × 6 (square column) = 60 (pulse). On the other hand, in the film feeding detection method in which the perforation present in the film 13 is directly read by the known photoreflector, one frame of film has 8 perforations, so that 8 pulses are output. Therefore, when the roller is used, the film feed amount can be detected more finely.

Further, in recent years, photographs in which the date and the like are imprinted in the prints of the photographs have become widespread. However, in the case of a camera equipped with a film feeding / detecting device as in this embodiment, such data copying is possible. The rubbing device can be realized with a simple structure.

The data imprinting device is adapted to imprint the data during film feeding.
As shown in FIGS. 54 and 55, the emitted LED 248 and the date lens 247 are supported by the date holder 246, and the date holder 246 is positioned with respect to the main body 4. The main body 4 is provided with a hole 4d for imprinting data, and the light emitted by the light emitting LED 248 passes through the date lens 247 so that the film 1 is formed.
An image is formed on 3 and data is imprinted.

The light emitting LED 248 can expose one character of data for each light emission. Therefore, when the data is copied, the light emitting LED 248 is fed when the film 13 is fed and passes over the hole 4d of the main body 4.
Are sequentially lighted as many times as necessary to imprint data.

The feeding speed of the film 13 is not always constant due to changes in the amount of pulling force from the cartridge 12 and variations in mechanical precision and wear of the unillustrated winding gear train and winding motor. is doing. As a result, when the data is imprinted by causing the light emitting LED 248 to emit light at regular time intervals without detecting the feeding speed of the film 13, the character spacing of the character string imprinted on the film 13 is reduced. Since the characters may become wider or narrower or characters may overlap with each other, it is necessary to detect the feeding speed with high accuracy.

In this embodiment, the feeding speed is detected by measuring the generation interval of the output pulse signal from the data PR261. Here, in the known film feeding detection method for directly reading the known perforation holes,
Since 8 pulses are output per frame, the resolution per frame is 8
Becomes On the other hand, if the above rollers are used, 6
Since the output signal of 0 pulse is generated, the resolution per frame is 60, and the feeding detection device using the roller can detect the feeding speed more finely so that the character intervals at the time of data transfer are properly aligned. It is possible to control the light emission interval.

Further, the polygonal column portion 260 of the roller 260 described above.
b does not have to be hexagonal as in the illustrated roller,
An arbitrary polygonal column may be used in consideration of the character spacing when data is imprinted. Further, it may be a cylinder in which the reflective surface and the non-reflective surface are alternately coated such as silver and black. Since this embodiment is used for the data imprinting function, the polygonal column portion 260b is a polygon having a large number of sides because a fine resolution is required.

Differences in the character spacing due to the density of the resolution are shown in FIGS. 58 and 59.

FIG. 58 shows the data PR when the resolution is high.
An example is shown in which one character is copied every time there is one output pulse signal from the H.261. Also, FIG. 59 shows an example in which four characters are copied for each output pulse signal from the data PR261 when the resolution is coarse.

In the example shown in FIG. 58, when one output pulse signal from the data PR261 is generated, the data is imprinted for one character. Even if the film feeding speed changes, the generation interval of the output pulse signal from the data PR 261 changes accordingly, so that the character interval of the data imprinted character string becomes constant.

In the example shown in FIG. 59, the data PR2
Since the change of the feeding speed between the two output pulse signals from 61 cannot be detected, the control means performs control on the assumption that the feeding speed is constant, and as a result, the character spacing of the character string varies. Will end up. The smaller the number of characters printed for each output pulse signal from the data PR261, the smaller the variation in the character spacing, and the larger the number of characters printed, the greater the variation in the character spacing.

In this embodiment, the film P for detecting the movement of the perforation is used for detecting the one-frame feed of the film.
Since R249 is used, a cumulative error in the film feed amount that increases as the number of shots increases does not occur, and a method for reading the rotation of the roller 260 with high resolution is used for imprinting the date. A stable camera can be realized.

Next, a modified example of the film feed amount detection mechanism in the above embodiment will be described.

If the diameter of the roller 260 is manufactured with high accuracy, an error in feeding the film by one frame hardly occurs. Therefore, the data PR26 for detecting the rotation of the roller 260 is generated.
It is also possible to feed one film by one frame. In this case, since the film PR249 can be eliminated, a smaller camera can be realized. Further, in the case of a camera having no data imprinting function, the polygon portion 260b of the roller 260 may be a polygon having a small number of sides because the resolution may be rough.

Next, the finder unit in this embodiment will be described.

FIG. 60 is a perspective view showing the structure of the finder unit.

Inside the camera behind the optical axis of the exterior panel 22, the finder unit 5 is arranged at a position above the rotary frame 51 which is a component of the lens barrel 2 as shown in FIG. Has been done. In the finder unit 5, various units such as a photometry unit, an AF light emitting unit, an AF light receiving unit, a finder optical system, and a finder zooming drive mechanism are attached to a finder structure member 150 which is a frame member.

The photometric section is provided behind the photometric window 22a of the exterior panel 22 on the optical axis, and is provided with a photometric hole 150f formed substantially in the center of the front side of the finder structure member 150, and the photometric hole 150f. It comprises a photometric light receiving element 450 which is a light receiving means attached to the rear of the axis.

The AF light projecting section is provided behind the AF light projecting window 22c of the exterior panel 22, and is fixed to the finder structure member 150.
And an AF light-projecting LED (not shown) disposed behind the optical axis.

The AF light receiving portion is provided from the rear of the AF light receiving window 22d of the exterior panel 22 on the optical axis, and the AF light receiving lens 177 fixed to the finder structure member 150 and the rear of the optical axis are provided. The AF light receiving element (not shown) is provided.

The finder optical system comprises a finder objective lens group as described below.

The fixed objective lens 151 includes the exterior panel 22.
Is provided behind the optical window of the finder entrance window 22d, and is positioned and fixed to the right end of the finder structure member 150 on the front surface side.

The light beam incident from the fixed objective lens 151 is the first variable lens 15 disposed behind the optical axis thereof.
It is designed to enter 2. The first variable power lens 152 has a shaft insertion portion 152c provided with an upper cam follower portion 152b, and a rotation stopping portion 15 from the bottom.
2a is projected. Thereby, the first variable power lens 1
52 is pivotally supported by the finder objective lens sliding shaft 159 which is a guide shaft by the shaft insertion portion 152c, and the rotation stopping portion 152a is engaged with the fitting groove 160a formed in the finder lens base plate 160, It is slidable along the optical axis.

The light flux from the first variable power lens 152 is further incident on the second variable power lens 153. The second variable power lens 153 has a shaft insertion portion 153c provided with a cam follower portion 153b in the upper portion, and a rotation stopping portion 153a protruding from the lower portion. As a result, the second variable power lens 153 is axially supported by the finder objective lens sliding shaft 159 by the shaft insertion portion 153c, and the rotation stopping portion 153a is fitted in the fitting groove 160a formed in the finder lens base plate 160. When engaged, it can slide in the optical axis direction.

Further, the finder light flux has a first prism 154 and a second prism 156 described later (see FIG. 61).
After passing through the lens, the light enters the eyepiece variable magnification lens 157. The eyepiece variable power lens 157 is a lens for increasing the magnification of the viewfinder field during panoramic photography, and is movable as described later.

The optical image that has passed through the eyepiece variable power lens 157 enters the fixed eyepiece lens 158. The fixed eyepiece lens 158 is provided with a mounting portion 158a projecting from below, and is fixed and positioned on the finder structure member 150 by being inserted into a fixed shaft 150f (see FIG. 66) described later.

The cam follower portion 152b of the first variable power lens 152 and the cam follower portion 153b of the second variable power lens 153 have biasing means attaching portions 152d, 152, respectively.
53d is provided so as to project to the second urging means 166.
By attaching the first variable magnification lens 152 and the second
The variable power lens 153 is urged in the pulling direction.
As a result, the cam follower parts 152b, 15
3b is a cam portion 161 of a cam member 161 which is a cylindrical member.
It is urged in a direction to bring it into contact with a and 161b.

A finder zooming drive mechanism for performing zooming by driving such a finder optical system is configured as described below.

The rotating member 163 has a gear portion 163a and a driving belt winding portion 163b coaxially connected to each other, and is rotatably supported by a rotating member shaft 164.
Then, the gear portion 163a is the rotation frame 5 of the lens barrel 2.
By meshing with the gear portion 51a formed on the peripheral surface of No. 1, the rotation of the rotary frame 51 is transmitted to the cam member 161, thereby performing zooming of the finder.

The driving belt 162 is for winding one of the rotating member 163 and the cam member 161, thereby transmitting the rotational movement of one to the other, and the driving belt winding portion of the rotating member 163. 163b and cam member 16
Both ends are fixed to one driving belt winding section 161c. The driving force of the driving belt 162 is the rotational driving of the rotary frame 51 in one direction and the first urging means 165 in the other direction.
It is supplied by the biasing force (see FIG. 61). At this time, the drive belt winding section 163b and the drive belt winding section 161
The speed reduction ratio can be arbitrarily set by changing the winding diameter of c. The position of the driving belt 162 is regulated by the belt position regulating portion 150d of the finder structure member 150.

As described above, the photometry section and the A area are provided in the portion surrounded by the driving belt 162, the rotating frame 51, and the finder lens group.
By arranging the F light projecting portion and the like, it is possible to effectively use the space and realize miniaturization of the camera body.

The cam member 161 is the finder structure member 1.
A cam member shaft portion 150e (see FIG. 61) provided with a spacer protruding forward from the right end portion of the shaft 50 is rotatably supported. As described above, the cam member 161 is provided on the cam follower portion 152 of the first variable power lens 152.
b and the cam follower portion 153 of the second variable power lens 153.
The drive belt take-up unit 1 has cam portions 161a, 161b with which the b abuts, is formed on the peripheral surface, and one end of the drive belt 162 is fixed to the peripheral surface of the front end.
It is 61c.

In this way, the rotating member 163 and the cam member 16 are
Since 1 is connected by the driving belt 162, even if the finder optical system has a layout separated from the lens barrel 2, it is possible to configure a finder optical system that can be linked to the operation of the lens barrel 2. it can. Further, since it is possible to dispose the photometric unit, the AF unit, and the like between the rotating member 163 and the cam member 161, it is possible to increase the degree of freedom of layout and arrange them efficiently, and as a result, downsizing the camera body is realized. be able to.

FIG. 61 is a perspective view showing the structure of the viewfinder lens group, and FIG. 62 is a viewfinder objective lens group and the first viewfinder lens group.
It is a perspective view which shows a mode that a prism was assembled.

The first prism 154, which is a fixed prism, is
The light flux incident from the finder objective lens group is inverted by about 180 ° in a U-shape in the lateral direction, and is attached to the finder structure member 150.

The field mask 155 is a member showing a field frame of a screen size in a normal state, is located on the image plane of the finder optical system, and is sandwiched by the first prism 154 and the second prism 156. The position has been fixed.

The second prism 156 makes the light beam incident from the first prism 154 into a U shape in the vertical direction by about 180 degrees.
It is inverted, and its position is fixed by the finder structure member 150 and the first prism 154.

Finder lens base plate 1 as a rotation restricting member
Reference numeral 60 denotes a plate-shaped member in which a fitting groove 160a parallel to the optical axis direction is engraved. The fixed objective lens 151 and the first prism 154 hold one end of each and determine the position. As described above, the first groove is formed in the fitting groove 160a.
The rotation stop portion 152a of the variable power lens 152 and the rotation stop portion 153a of the second variable lens 153 are engaged with each other to restrict the rotation of the both of them about the finder objective lens sliding shaft 159.

The first urging means 165 has fixed arms 1 at both ends.
65a and a moving arm 165b, which is an urging member composed of, for example, a coil spring, the fixed arm 165a is fixed to the cam member shaft 150e of the finder structure member 150, and the moving arm 165b is fixed to the cam member 161. It is fixed. The first biasing means 165 constantly biases the cam member 161 in the rotational direction indicated by the arrow F, thereby driving the cam member 161 and preventing the driving belt 162 from slacking even in the stopped state. ing. Fig. 63
Is a plan view showing the objective lens group and the cam member in the tele (telephoto) state, and FIG. 64 is a plan view showing the objective lens group and the cam member in the wide (wide angle) state.

As shown in the figure, the end surface of the cam follower portion 152b of the first variable power lens 152 on the optical axis rear side is in contact with the cam portion 161a of the cam member 161, and the cam follower of the second variable power lens 153. The end surface of the portion 153b on the front side of the optical axis is in contact with the cam portion 161b.

The rotation member 16 is rotated by the rotation of the rotation frame 51.
When the cam member 161 rotates via the drive belt 162 and the driving belt 162, the first variable lens 152 and the second variable lens 153 move in the optical axis direction along the cam portions 161a and 161b. At this time, by engaging the cam portions 161a and 161b and the cam follower portions 152b and 153b, the first variable power lens 1 is moved around the viewfinder objective lens sliding shaft 159.
The rotation stopping portions 152a and 153a are engaged with the fitting groove 160a of the finder lens base plate 160 so as to prevent the rotation of the lens 52 and the second variable power lens 153, thereby restricting the rotation.

FIG. 65 is a sectional view showing a structure for improving the positional accuracy of a finder optical system having a zoom function.

As shown in FIG. 65, the finder objective lens sliding shaft 159 has a fixed objective lens 151 on the front side of the optical axis and a finder structural member 150 on the rear side of the optical axis at both ends thereof.
It is supported by. Finder lens base plate 160
Is fixed in position by holding one end thereof by the fixed objective lens 151 and the first prism 154. The objective lens 151 and the first prism 154 are positioned and fixed to the finder structure member 150, respectively. Accordingly, the positional accuracy of the finder objective lens sliding shaft 159 with respect to the fixed objective lens 151 and the fitting groove 160a of the finder lens base plate 160, and the first prism 15
Fitting groove 16 of finder lens base plate 160 for 4
Since the positional accuracy of 0a is improved, the fixed objective lens 151
And the first variable power lens 152 for the first prism 154.
Therefore, the accuracy of the relative position of the second variable power lens 153 is improved.

To reduce the size of the finder optical system for zooming, the relative positional accuracy of each lens is strictly required. However, according to the configuration shown in FIG. 65, the fixed objective lens 151 and the first prism are used. Since the accuracy of the relative position of the first variable power lens 152 and the second variable power lens 153 with respect to 154 can be improved, the finder optical system can be downsized, and as a result, the camera can be downsized. . In addition, since the finder optical system has high accuracy, the optical axis does not shift, and adverse effects such as aberrations are reduced, so that the finder has good visibility.

FIG. 66 is a perspective view of the camera as seen from the rear side, showing the configuration of the panorama switching of the viewfinder section.

The fixed eyepiece lens 158 is positioned by the fixed shaft 150f of the finder structure member 150 and fixed to the finder structure member 150, and the subject image formed near the incident surface of the second prism 156 is observed. It has become so. At this time, in the state as shown,
The viewfinder can be observed with a normal screen size and magnification.

The panorama switching shaft 168 is provided so that both ends thereof are fixed to the finder structure member 150 in the direction orthogonal to the finder optical axis.

The eyepiece variable magnification lens frame 167 is a member that holds the eyepiece variable magnification lens 157 and has an elongated substantially U-shaped viewfinder panoramic field mask 167a integrally fixed thereto. , Is held slidably on the panorama switching shaft 168. The eyepiece variable magnification lens frame 167 is provided with a rotation stopping portion 16 protruding from one end surface thereof.
By engaging 7b with a groove 150c formed in parallel with the panorama switching shaft 168 of the finder structure member 150, rotation around the panorama switching shaft 168 is restricted.

The eyepiece variable magnification lens frame 167 is inserted into the panorama switching shaft 168 between the viewfinder structure member 150 and the compressed force of the panorama switching spring 169 so that the fixed eyepiece lens 158 of the viewfinder is in front. It is designed to be inserted into. In the inserted state, the screen is switched to the panoramic size and the viewfinder magnification is increased, so that the viewfinder can be easily seen.

The eyepiece variable power lens 157 is a lens whose finder magnification is increased by being inserted in front of the eyepiece lens 158, and in the eyepiece variable power lens frame 167, the moving direction of the eyepiece variable power lens frame 167 is increased. The lens urging spring 170 urges the lens to the left in the figure. The lens biasing spring 170 is inserted through a pin 167e protruding from the eyepiece variable magnification lens frame 167, and is configured not to buckle.

67 and 68 are views showing the panorama switching operation of the viewfinder, and FIG. 67 is a plan sectional view when the viewfinder is in the panoramic state.

In the eyepiece variable magnification lens 157, the projecting abutting portion 157a comes into contact with the projecting 150b of the finder structure member 150 by the urging force of the lens urging spring 170 so that the position can be accurately determined. There is. As a result, the optical axis of the eyepiece variable power lens 157 is accurately aligned with the optical axis of the finder optical system. Further, the eyepiece variable power lens 157 is
Two projections 157b are projected from the lower surface, and these projections 157b are elongated slots 167c elongated in the direction perpendicular to the finder optical axis formed in the eyepiece variable magnification lens frame 167.
By engaging with each other, the position in the optical axis direction is regulated, and it is slidable in the direction along the elongated hole 167c.

The eyepiece variable magnification lens frame 167 is constructed by the panorama switching spring 169 as described above.
The lens biasing spring 170 is biased in the insertion direction of the lens.
Since the spring force of the panorama switching spring 169 is set to be stronger than the spring force of (1), the eyepiece variable magnification lens frame 167 is not pushed back by the force of the lens biasing spring 170. Accordingly, the eyepiece variable power lens frame 167 can determine the insertion position independently of the eyepiece variable power lens 157.

On the other hand, a viewfinder panoramic field mask 1
67a does not require particularly precise positioning even when it is inserted from the lateral direction orthogonal to the finder optical axis as described above, and may be inserted at the position indicated by reference numeral 167a 'in FIG. This is because the mask for controlling the visual field in the short side direction at the time of panorama is also used as the mask on the short side of the visual field mask 155, and the viewfinder panoramic visual field mask 167a provided in a U shape masks the long side. This is because only the visual field on the side along the long side is restricted.

FIG. 68 is a plan sectional view when the finder is in a normal screen state.

From the panoramic shooting state shown in FIG. 67,
When the panorama switching gear 171 (see FIG. 71) described later is driven to return the eyepiece lens frame 167 to the state shown in the drawing against the biasing force of the panorama switching spring 169, the viewfinder panoramic field mask 167a also returns and the field of view is restored. While returning to the normal screen size, the eyepiece lens 157 also returns and the viewfinder magnification also becomes a normal state.

FIG. 69 is a vertical sectional view when the finder is in the panoramic state.

Field mask 167a for finder panorama
Is disposed near the rear side of the field-of-view mask 155 having a normal screen size and disposed near the front side of the first prism 154, that is, the finder objective, as shown in the figure. It is inserted near the image plane of the lens.

The eyepiece variable power lens 157 is as described above.
The position in the viewfinder optical axis direction is regulated by engaging the protruding projection 157b inserted between the fixed eyepiece lens 158 and the second prism 156 with the elongated hole 167c of the eyepiece variable magnification lens frame 167. At the same time, it is free in the moving direction of the eyepiece variable power lens 157. FIG. 70 is a view showing the eyepiece variable magnification lens frame 167 shown in FIG. 68 seen from the direction of arrow J and the view mask portion of the finder in cross section.

As described above, the field mask 155 for the normal screen is arranged in the vicinity of the incident surface of the second prism 156 facing the first prism 154, and this position is the image forming surface of the finder optical system. There is.

Finder panoramic field mask 167a
70 is in the position shown in FIG. 70 in the normal screen, but in panorama, it moves to the position shown by reference numeral 167a 'in the figure to cover the upper and lower sides of the field mask 155 in the normal screen. There is.

As described above, according to the configuration as described with reference to FIGS. 66 to 72, the eyepiece variable magnification lens 157 can be accurately positioned independently of the insertion position of the viewfinder panoramic visual field mask 167a. At the same time, the viewfinder panoramic field mask 67a can put the viewfinder in a panoramic state without requiring particularly precise positioning.

By doing so, the finder observation magnification can be increased during panoramic screen size photography as compared to standard screen size photography, which makes it easier to observe the finder image and provides a realistic sensation close to that during printing. Can be given.

Further, in the panorama, since the area outside the photographing screen is shielded by the viewfinder, it is possible to reliably prevent the subject from being photographed by the shading mask on the screen.
In addition, the finder unit can be downsized and the camera can be downsized as well because the viewfinder can be magnified and the field mask can be switched with the simple configuration.

71 and 72 are views showing the photographing screen and the normal state and panoramic state of the viewfinder field mask portion.

As shown in FIG. 71, the camera 1 is provided with a camera body 4 having a rectangular photographing screen opening 4c in the substantially central portion, a spool chamber 4b on the right side and a cartridge chamber 4a on the left side. .

This camera body 4 is provided with an upper light-shielding mask 24.
3 and lower panorama mask 242 panorama switching mechanism 7
(All are not shown) are held, and the upper light blocking mask 243 and the lower light blocking mask 242 are moved up and down to regulate the photographing light flux that passes through the photographing screen opening 4c as necessary, so that the normal The screen size and panorama screen size can be switched. The upper light-shielding mask 243 and the lower light-shielding mask 242 are vertically guided by a shaft 239 and are connected to each other by a biasing means 244.

The camera body 4 further holds the finder structure member 150 of the finder unit 5 and adjusts the movement of the mask on the photographing screen to the eyepiece variable magnification lens frame 167.
The panorama switching gear 171 that is a two-stage gear that is transmitted to the camera is rotatably held.

The finder structural member 150 of the finder unit 5 holds the above-mentioned eyepiece variable power lens 157 and also holds the eyepiece variable power lens frame 167 which is integrally fixed to the viewfinder panoramic field mask 167a. . Further, the eyepiece variable magnification lens frame 167 has a rack 167d which is a second rack, and meshes with the large diameter gear 171a of the panorama switching gear 171.

In the upper light-shielding mask 243, the rack 243c, which is the first rack meshing with the small-diameter gear 171b of the panorama switching gear 171, is integrally formed in the upper space between the spool chamber 4b and the photographing screen opening 4c. The panorama switching gear 171 is fixed and is rotated by the vertical movement of the upper light-shielding mask 243. The vertical movement of the upper light-shielding mask 243 is operated by the panorama switching mechanism 7 although details are not shown.

When the photographing screen is switched from the normal state as shown in FIG. 71 to the panoramic state as shown in FIG. 72, the rack 243c is moved downward and the rack 2
The small diameter gear 171b of the panorama switching gear 171 meshing with 43c is rotated. With this,
The large-diameter gear 171a of the panorama switching gear 171 also rotates integrally, and the large-diameter gear 171a and the rack 171d.
The eyepiece variable magnification lens frame 167 that is meshed with is moved in a direction (right direction in the drawing) orthogonal to the moving direction of the upper light-shielding mask 243.

When the eyepiece variable magnification lens frame 167 is in the panoramic state as described above, the viewfinder panoramic view field mask 167a is inserted in front of the normal viewfinder field view mask 155 and the upper and lower screens are displayed even when looking through the viewfinder. It can be observed in a state where the range is shielded from light.

When returning from the panoramic state as shown in FIG. 72 to the normal state as shown in FIG. 71, the upper light-shielding mask 243 moves upward to move the rack 243c upward, Small diameter gear 171b of panorama switching gear 171 meshing with the rack 243c
Is rotated counterclockwise in the figure. Along with this, the large-diameter gear 171a of the panorama switching gear 171 also rotates integrally, and the eyepiece variable magnification lens frame 167 meshed with the large-diameter gear 171a by the rack 167d moves to the left in the drawing. The state returns to the state indicated by 71.

According to the configuration as described with reference to FIGS. 71 and 72, since the photographing screen size and the viewfinder field mask can be switched at the same time, it is possible not only to take a picture without missing a photo opportunity. , Since the size of the shooting screen and the viewfinder screen are always the same, there is no chance of wrong shooting or shooting in which the subject is eclipsed by the light-shielding mask of the shooting screen.

Further, as described above, the rack 243c is arranged in the upper space between the spool chamber 4b of the camera body 4 and the photographing screen opening 4c, and the rack 1 is arranged above the photographing screen opening 4c.
67d is installed and these are set to the panorama switching gear 171.
And the upper light-shielding mask 243 is moved up and down to move the viewfinder panoramic field mask 167a in a direction orthogonal to the operation direction of the upper light-shielding mask 243, thereby efficiently performing the arrangement inside the camera. And can be a small camera.

In the above structure, the rack 243c
Instead of arranging the rack 243 on the spool chamber 4b side, a rack 243 is provided in an upper space between the cartridge chamber 4a and the photographing screen opening 4c.
It is also possible to dispose c and configure the other parts in substantially the same manner.

FIG. 73 is a diagram showing the structure of the photometric optical system.

In FIG. 73, the finder structure member 15 is shown.
As shown in FIG. 60, 0 indicates the light receiving element 4 for photometry.
50 is pressed and held by the elastic arm 150g. A photometric infrared light cut filter 173 is disposed on the optical axis front side of the photometric light receiving element 450.
50 is configured to measure a light ray close to visible light.

A photometric aperture 150f for allowing light to enter is provided on the front side of the photometric light receiving element 450 along the optical axis, and the photometric aperture 150f allows the photometric aperture from a side unnecessary for photometric measurement of a subject. Light is not allowed to enter. The finder structure member 150 is fixed to the camera body 4 as shown in FIG.

The exterior panel 22 is formed of a transparent member as described above, and is fixed to the front cover 21 by adhesion, welding or the like. The exterior panel 22 integrally has a lens portion 22f inside the camera in a portion corresponding to the front side of the optical axis of the photometric light receiving element 450.

On the outside of the camera of the exterior panel 22,
The light-shielding paint film 22g is integrally fixed by in-mold molding. The paint film 22g is not provided in the portion corresponding to the lens effective portion of the lens portion 22f, the internal transparent member is directly exposed to the outside, and the light for photometry enters without being blocked. Window 22 for photometry
It is a.

Similarly, the front cover 21 is also provided with an opening 21c at a portion corresponding to a lens effective portion, and the opening 21c is used as an aperture of the lens portion 22f to determine the aperture diameter of the lens. It has become.

As described above, by integrally providing the photometric lens on the exterior panel 22, the luminous flux from the subject is condensed to perform photometry.

With the configuration shown in FIG. 73, photometry can be performed without separately providing a conventional photometric lens, and as a result, the space from the exterior member to the photometric lens is reduced. Since it can be omitted and the imaging distance from the photometric lens to the light receiving element can be secured directly from the inner surface of the exterior member, the camera can be downsized.

Further, since the lens surface is provided inside the exterior member, the lens surface is not easily scratched. Further, since the light-shielding film is provided except for the vicinity of the lens portion, light unnecessary for photometry can be cut and accurate photometry can be performed. Further, since the photometric lens is formed integrally with the exterior member, it has an advantage that the waterproof performance and the dustproof performance are high as compared with the case where it is configured as a separate part like a conventional camera.

As described above, according to the embodiment of the present invention, photometry can be performed without separately providing a photometric lens as in the conventional case, and as a result, a space from the exterior member to the photometric lens can be saved. Since it can be omitted and the image forming distance from the photometric lens to the light receiving element can be secured directly from the inner surface of the exterior member, the camera can be significantly downsized.

Further, as compared with a camera that is miniaturized by directly measuring the light incident from the transparent window of the exterior member without providing the photometric lens, the photometric lens is provided integrally with the exterior member to form a subject image. By performing photometry with the image formed on the light receiving element, it is possible to perform highly accurate photometry and multi-divided photometry by dividing the light receiving element, and as a result, appropriate exposure for the brightness distribution of the subject is obtained. The camera can be controlled.

Further, since the photometric lens is formed as an integral part with the exterior member, it is more waterproof and dustproof than the case where the exterior member and the photometric window are provided as separate parts as in a conventional camera. It can be an excellent small camera.

In addition, since the photometric lens surface is provided inside the exterior member, the lens surface is unlikely to be scratched. Since the light-shielding film is provided around the photometric lens portion, light unnecessary for photometry can be cut and accurate photometry can be performed. Since it has a simple structure and a small number of parts, it can be an inexpensive camera.

Next, the mounting state of the electric component in this embodiment will be described.

74 and 75 are perspective views showing the mounting state of the electric parts in the embodiment of the present invention.

In the figure, reference numerals 2, 4, 5 and 7 indicate the above-mentioned lens frame unit, camera body, finder unit and panorama switching mechanism, respectively.

In the camera of this embodiment, as shown in FIG. 74, a main substrate 301, which is a hard printed circuit board made of epoxy resin containing glass, on which various electric components are mounted, is arranged above the main body 4. It is set up.

FIG. 77 is a top view showing the main substrate 301 in detail.

A straight terminal electrode portion 301a is provided on one side edge of the upper surface of the main substrate 301, and the back surface of the terminal electrode portion 302a provided at the tip of a lens frame flexible substrate 302 described later. Connected with the side. In addition, a straight terminal electrode portion 301b is provided on the other side edge portion of the upper surface of the main substrate 301, and is connected to the back surface side of a terminal electrode portion 303a of a main body drive flexible substrate 303 described later.

Further, straight terminal electrode portions 301e are provided on the upper surface of the main substrate 301 in the vicinity of the inner sides of the straight terminal electrode portions 301a and 301b, respectively. A display circuit (LC) which is an external display LCD of the camera via 309 and 310.
D) Connected with 404.

FIG. 78 is a top perspective view showing the main substrate 301 as seen from above.

As shown in the figure, on the back surface side of the straight terminal electrode portion 301a of the main substrate 301,
A similar straight terminal electrode portion 301c is provided and is connected to a terminal electrode portion 304a of a date flexible substrate 304 described later. Further, a similar straight terminal electrode portion 301d is provided on the back surface side of the straight terminal electrode portion 301b in the main substrate 301, and is connected to a terminal electrode portion 305a of an AF flexible substrate 305 described later. .

In the figure, reference numerals 401 and 402 respectively denote a camera control IC (CPU) and an interface I.
C (I / F-IC), which is mounted on the lower surface of the main substrate 301.

Returning to FIG. 77, a cutout hole 301g for escaping the lead wire 30a from the release button 30 (see FIG. 74) is formed at one end of the main substrate 301, and further, the In the vicinity of the cutout hole 301g,
Projection 4w hung vertically on the pedestal 4h when the board is connected
The fitting hole 301h (see FIG. 75) is formed.
In addition, the straight terminal electrodes 301a, 301b
Holes 301i and 301j are formed in the vicinity of both ends of each of the holes to which guide pins 4i and 4j (see FIG. 75) vertically attached to the pedestal portions 4f and 4g at the time of board connection are fitted. Further, a screw escape hole 301k is formed at a position corresponding to the fastening screw hole 4k (see FIG. 75) arranged near the guide pins 4i, 4j.

On the other hand, on the main board 301, a photographing mode button 32, a flash mode button 33, a self-timer / remote control button 34, a panorama button 35 (see FIG. 74).
Signal reception pattern 301m, 301n, 3 from
01p and 301q are provided. Further, a terminal electrode portion 301r, which is connected to a terminal electrode portion 319a of an AF light projecting flexible substrate 319 described later by soldering, is arranged at a side edge portion near the pattern 301q. Further, at one end of the main substrate 301, a circumferential array terminal electrode portion 301s connected to a terminal electrode portion 306b of a DX flexible substrate 306 described later is arranged on the back surface.

Further, at the other end of the main substrate 301,
A driver drive circuit 405 including a driver element that drives each actuator and the light-emitting element 423 for distance measurement is provided. The driver drive circuit 405 is liable to generate heat because a high current is passed when driving each actuator and the distance measuring light emitting element 423. Further, since switching is frequently performed by starting / stopping / reversing each actuator and emitting / turning off the light-emitting element 423 for distance measurement, electrical noise is easily generated.

As a result, the CPU 401, I / F-
IC 402, display circuit (LCD) 404, PSD 420
When it is brought close to the connecting portion 301d between the AF flexible printed circuit board 305 and the main substrate 301 on which is mounted, the connecting portion to the signal line of the other substrate, etc., there is a possibility that the above-mentioned heat generation and noise may cause malfunction. In order to prevent this, the driver drive circuit 405 is mounted in a concentrated manner at a position separated by a predetermined distance from the above-mentioned element or the connecting portion.

The connection portion between the AF light projecting flexible substrate (IR-FPC) 319 on which the distance measuring light emitting element 423 is mounted and the main substrate 301 is connected to the CPU 401 or the I / F-I.
It is arranged in the terminal electrode portion 301r apart from C402 and the like. Further, the main body drive motor 201 and the switching plunger 2
The lead wire for supplying electric power to 06 is connected to the main board 301 near the driver drive circuit 405 by soldering or the like (not shown). As a result, it is possible to ensure reliability without malfunction even in a harsh environment or continuous use.

Returning to FIG. 74, two positioning holes 301f are formed in the middle of the main substrate 301, and an illuminating device 454 for LCD display is mounted on the upper surface of the positioning holes 301f. It is set up. A positioning boss 331b projects downward from the lower surface of the lighting device 454 (see FIG. 79), and is fitted into the positioning hole 301f to position the lighting device 454.

The above-mentioned lens frame flexible substrate (lens frame FPC)
Reference numeral 302 denotes a flexible printed circuit board that transmits signals from the internal shutter and the autofocus drive mechanism, and extends from the lens frame unit 2 as shown in FIG. A terminal electrode portion connected to the straight terminal electrode portion 301a is provided on the back surface of the tip portion.

[0327] The main body drive flexible substrate (main body FP
C) 303 is a flexible printed circuit board that transmits signals from the film and the zoom drive mechanism (not shown), and its base is arranged on the bottom surface of the main body 4 in the left-right direction. Further, a part of the substrate extends upward on the front surface of the main body 4, and a terminal electrode portion connected to the straight terminal electrode portion 301b is arranged on the rear surface of the extending end portion. ing.

As shown in FIG. 75, the date flexible board (date FPC) 304 is a flexible printed board mounted on the date character projecting section 7a in the panorama switching mechanism 7, which is displaced in association with screen size switching. The terminal electrode portion 304a connected to the straight terminal electrode portion 301c is disposed at one end thereof.

The AF flexible substrate (AF-FP
C) 305 is a flexible printed board on which the PSD 420 for AF light reception and the light receiving element 450 for photometry are mounted,
A terminal electrode portion 305a connected to the straight terminal electrode portion 301d is formed in the middle thereof. Also,
From the terminal electrode portion 305a toward the rear, an installation portion 305b in which signal reception patterns from the power button 36, the date mode button 37, and the date set / illumination button 38 are arranged is formed in a curved shape.

The DX flexible substrate (DX-FP
C) 306 is a flexible printed circuit board that transmits a DX signal and a signal from a strobe unit (not shown), and is arranged vertically on one side of the main body 4. One end of the DX flexible substrate 306 is a DX
A terminal electrode portion 306a connected to the contact piece 320 is formed, and a release switch unit 318 having release switches 428 and 429 described later therein is mounted on the upper plane portion. In the figure, reference numeral 32
Reference numeral 1 denotes a DX contact piece holding frame which holds the DX contact piece 320 and the terminal electrode portion 306a and is attached to the main body 4.

Also, the release switch unit 318
A terminal electrode portion 306b connected to the terminal electrode portion 301s is formed near the mounting portion of, and a terminal electrode portion 306c is formed at the tip portion.

The above-mentioned AF light projecting flexible substrate (IR-F
PC) 319 is a distance measuring light emitting element 423 and a main substrate 301.
Is a flexible printed circuit board for connecting to and the terminal electrode portion 319a is connected to the terminal electrode portion 301r by soldering.

Elastic members 316 and 317 are provided above the cradle parts 4f and 4g, respectively, and when the main board 301 is mounted on the main body 4, the main board 30 is placed.
It is adapted to be inserted between the lower surface of 1 and the main body 4.

The above-mentioned display circuit (LCD) 404 is arranged above the illumination device 454.
404 is connected to the main substrate 301 via anisotropic conductive rubbers 309 and 310 (see FIG. 76).
The LCD 404 is covered and held by the LCD holding frame 308 together with the anisotropic conductive rubbers 309 and 310. The illumination device 454 is also provided inside the LCD holding frame 308, and the LCD 404 is illuminated by the illumination device 454 from the back side.

FIG. 76 is a sectional view of a connecting portion when the main printed circuit board 301 and each flexible printed circuit board are fastened with a tightening tool.

As shown in the figure, the LCD holding frame 308.
Projecting portions 308a and 308b for pressing the holding frame 308 against the main substrate 301 are formed on both side edges of the (see FIG. 74). Holding plates 314 and 315 are placed on the upper surfaces of the protrusions 308a and 308b, respectively, and elastic members 312 and 313 are interposed between the lower surfaces of the protrusions 308a and 308b and the main substrate 301, respectively. Has been done. Then, from above the holding plates 314, 315 placed on the upper surfaces of the protrusions 308a, 308b, the board fastening screws 322 are inserted into the holes of the respective holding plates, elastic members, and substrates for fastening screws of the main body 4. It is fastened to the hole 4k. As a result, the LCD holding frame 308 is elastically pressed and fixed to the main substrate 301. In FIG. 76, reference numeral 29 is an LCD viewing window (LCD window) made of a transparent member.

Further, on the main substrate 301, the LCD
On the back side of 404, a CPU that controls the LCD drive, etc.
401 is provided, the LCD 404, CPU 40
The terminal electrodes of No. 1 are on the front and back of each other. The terminal electrodes are connected at the shortest distance through the through holes. Therefore, it is not necessary to extend the pattern for a long time, the mounting efficiency is improved, and the area of the main substrate 301 can be reduced.

Next, a method of connecting the electric parts configured as described above will be described with reference to FIG.

First, the elastic member 316 and the terminal electrode portion 304a are guided by the guide pin 4i, and the elastic member 31 is guided by the guide pin 4j.
7 and the terminal electrode portion 305a, and further the protrusion 4w.
The terminal electrode portion 306b is attached by being guided by the. After that, the main substrate 301 is covered from above, and the display unit (LCD holding frame 308, LCD 404, anisotropic conductive rubbers 309 and 310, illuminating device 454) is provided with the above-mentioned positioning boss 331b (see FIG. 79) at the positioning hole 301f.
It is mounted on the main board 301 so as to be fitted into.

In this state, the guide pins 4i, 4j
Is projected from the upper surface of the main substrate 301, and similarly, the terminal electrode portion 302a, the elastic member 312, and the holding plate 31 are similarly formed.
4, the terminal electrode portion 303a, the elastic member 312, and the pressing plate 315 as a guide for stacking, and four board fastening screws 3
Tighten with 22. Thereby, the terminal electrode portion 3
02a and terminal electrode part 301a, terminal electrode part 301c and terminal electrode part 304a, terminal electrode part 303a and terminal electrode part 3
01b, the terminal electrode portion 301d and the terminal electrode portion 305a, and the terminal electrode portion 301e and the terminal electrode (not shown) in the LCD 404 are electrically connected.

At this time, if the LCD holding frame 308 has sufficient strength, the protrusion 308a is used instead of the holding plate 314.
However, the protrusion 308b may serve the role of the pressing plate 315 instead.

Next, the internal structure of the illumination device 454 will be described in detail with reference to FIGS. 79 and 80.

FIG. 79 is a sectional view of the illuminating device 454 and its peripheral portion, and FIG. 80 is the illuminating device 4 described above.
It is a principal part enlarged view which showed the light-incidence part of the light guide plate which injects the light source light in 54.

As described above, the display circuit (LCD)
404, anisotropic conductive rubber 309, 310, lighting device 45
4 is integrally housed inside the LCD holding frame 308, is pressed by the holding plates 314, 315, and is electrically connected to the main substrate 301.

The LCD 404 has a semi-transmissive reflection plate attached to the back surface thereof, and normally reflects external light to show a display, while when the external light is dark, the light of the illumination device 454 is passed to display. It is designed to make it easier to see.

The illuminating device 454 is mainly composed of a light guide plate 330 made of a transparent material and a substantially white holding member 331 which integrally holds the light guide plate 330 and a light source 332 composed of a light emitting element such as an LED. Is configured. A positioning boss 331b is formed so as to project from the lower surface of the holding member 331, and as described above, the positioning hole 3
01f is fitted to position the lighting device 454. A lead terminal 332a extends from the light source 332 and is electrically connected to the main board 301 with solder or the like.

As shown in FIG. 80, the light incident surface 330a of the light guide plate 330 is a surface on which the light source light from the light source 332 is incident, and the irradiation surface 330b is an LCD.
The surface irradiates 404 from the back surface, and the surface is a rough surface and serves as a diffusion surface (light ray L2). Further, the light guide surface 330c irradiates the light from the light incident surface 330a with the irradiation surface 33.
The surface is a surface that guides light to 0b (light ray L1), and the diffuse reflection surface 330d is configured to diffuse the light reflected and transmitted by the rough surface (light ray L3).

On the other hand, the surface 331a which is in contact with the diffuse reflection surface 330d is a mirror surface, and when the light emitted from the light source 332 leaks from the diffuse reflection surface 330d, it is reflected to the light guide plate 330 side again. It is designed to return the light.

In the illuminating device 454, the light from the light source 332 entering from the side surface of the light guide plate 330 is diffused inside the light guide plate 330 to become a surface light source, and illuminates the LCD 404 on the upper side. Further, the holding member 331 surrounds the bottom surface and the side surface of the light guide plate 330, so that the light is internally reflected and the illumination efficiency is increased.

The light guide plate 330 has a sufficient thickness to allow all the parallel light of the light source 332 to enter the light guide plate 330 at the light entrance surface 330a. In addition, the light guide surface 33
At 0c, light is reflected and guided to the irradiation surface 330b, and the irradiation surface 3b
30b is thinner than the light incident surface 330a, and the LCD 4 is provided on the upper surface.
Since 04 is installed, the lighting device can be thinned without lowering the lighting efficiency.

Further, since the main board 301 is a hard printed board and the switch input pattern is provided on the upper surface, a support member such as a main body for supporting the board when the switch is pressed is not required on the back surface. Therefore, with such a configuration, it becomes possible to mount an element requiring a large mounting area on the back surface of the main substrate. Thereby, a small camera can be provided.

Next, the electrical configuration of this embodiment will be described.

FIG. 81 is an electrical circuit diagram showing the electrical configuration of the camera of this embodiment.

First, each operation member of the camera 1 (see FIGS. 1 and 2).
(Reference) and each switch shown in FIG. 81 will be described.

When the release button 30 is lightly pressed, the release switch (RS
W) 428 turns on. When the release button 30 is pressed further deeply, the release switch (2RSW) 42 in 318 is released.
9 turns on.

When the zoom dial 31 is turned in the T direction, the zoom UP switch (ZUSW) is turned on. When the zoom dial 31 is turned in the W direction, the zoom DOWN switch (ZD
SW) 431 turns on.

When the photographing mode button 32, flash mode button 33, and self-timer / remote control button 34 are pressed, the respective buttons and 301m, 301n, 3 of the main board 301 are pressed.
Shooting mode switch (MOS)
W) 414, flash mode switch (FLSW) 4
15, self-timer / remote control switch (SESW)
416 turns on respectively.

When the panorama button 35 is pressed, a screen size changeover switch (PNSW) formed between the panorama button 35 and 301q of the main board 301 is turned on.

Power button 36, date mode button 3
7. When the date set / illumination button 38 is pressed, the power switch (PWSW) 413, MODE switch 443, and SET switch 444 formed between each button and the terminal electrode portion 305b of the AF-FPC 305 are turned on.

The CPU 401 uses the release switch 428,
429, zoom UP switch 430 (hereinafter, ZUSW),
The CPU 40 uses the switch input information such as the zoom DOWN switch 431 (hereinafter, ZDSW) and the switch 432 (hereinafter, PNSW) for switching the shooting screen size.
1 is a microcomputer that sequentially executes sequential control based on a program stored in a ROM provided inside and controls the operation of peripheral ICs and the like.

As other switch information input to the CPU 401, a SET switch 444 for correcting the date and the like to be imprinted on the film by a photographer described later, a MODE switch 443 for changing the imprinting mode, and a photographing screen size. There is a screen size detection switch 245 or the like for controlling the switching operation of.

The I / F-IC 402 has a built-in processing circuit for distance measurement, photometry, remote control reception, temperature measurement, strobe charging voltage detection, battery voltage detection, and the like, and an A / D conversion circuit.

In the distance measurement, the distance to the subject is measured by infrared rays by the active method. For light projection, the driver driving circuit is controlled by the I / F-IC 402 to cause the three distance measuring light emitting elements 423 to sequentially emit light. The current flowing through the light emitting element is converted into a voltage by the resistor 421 and fed back to the I / F-IC 402 to change the light emitting current to the I / F-IC.
402 controls. The projected light reflects on the subject,
An image is formed on the triple PSD 420.

In photometry, the received light is received by the photometric light receiving element 45.
0 is converted into a current and input to the I / F-IC 302 as photometric information.

The remote control (remote control) converts the received light into current in the light receiving element 451 for remote control, and
The / F-IC 402 determines whether the remote control is received.

In addition, each actuator is controlled by a command from the I / F-IC 402. The actuator has
A focus motor 108 (hereinafter referred to as AF motor) for driving the autofocus lens, and a main body drive motor 20 for driving film feeding, zoom feeding, feeding, and the like.
1 (hereinafter WZ motor), a switching plunger 206 for switching the drive system of the WZ motor (hereinafter WZ plunger), and a shutter plunger 111 for driving the shutter sector, but the I / F-IC 402 is An output signal of each detector 109, 213, 249, 110 which has a built-in control circuit for controlling and driving each actuator via the driver drive circuit 405 and detects a movement of a driving force transmission mechanism 410, 411, 412 described later. It also has a shaping circuit.

Here, the main function of each detector will be described.

The focus photo interrupter 109 (hereinafter referred to as focus PI) is used for automatic focus lens extension control and the like, and the zoom photo interrupter 213 (hereinafter referred to as zoom PI) is used for detection of focal length movement and the like.
The shutter trigger photo reflector 110 (hereinafter, shutter PR) is used to detect the timing of the shutter sector opening. These outputs are wired-ORed and connected to the same terminal of the I / F-IC 402 by the signal line 437. It measures the film movement distance and controls the winding of one frame.

The film photo reflector 249 (hereinafter referred to as film PR) is connected to the I / F-IC 402. Zoom photo reflector 139 (hereinafter zoom PR)
Is a detector for controlling the collapsing of the lens barrel and detecting the reference position of the focal length position.

Data imprinting timing The photo reflector 261 (hereinafter referred to as data PR) is for detecting the position of imprinting the date data on the film and the light emitting timing of the light emitting LED 248 for creating the imprinting character. A carrier photo interrupter 207 (hereinafter, carrier PI) is a detector for controlling the switching operation of the drive system of the WZ motor, and the zoom PR, data PR, and carrier PI are connected to the CPU 401, respectively.

A bus line 436 and an I / F for exchanging signals are provided between the CPU 401 and the I / F-IC 402.
-The result of A / D conversion built in IC402 is C
It is connected to the CPO signal line 435 that transmits to the PU 401.

The CPU 401 has a built-in distance measuring / remote control / battery voltage detection / strobe charging voltage detection built in the I / F-IC 402 via a bus line 436.
Each function such as each actuator drive circuit can be selected, and the start and stop of the AF motor 108 can be controlled.
The drive voltage can be set. Further, it is possible to select the drive of the detector and control the LED side current value for the detector of the photo interrupter or the photo reflector. An arbitrary judgment level can be set for the output current on the phototransistor side, and the judgment result can be output from the CPO 435 as a waveform-shaped signal (pulse).

The EEPROM 425 is a non-volatile memory that stores various parameters necessary for controlling the camera, and is required via a serial communication circuit composed of a serial clock line (SCLK) 442b and a serial data line (SDATA) 442c. In response, the stored contents are read out by the CPU 401.

The DT-CPU 426 has a clock function and a calendar function, and is linked with the film feeding, and the imprint LED 2
This is a data imprinting control microcomputer for illuminating 47 and imprinting data such as date on the film character by character. Then, the CPU is connected via serial communication circuits 442b and 442c common to the EEPROM 425.
Controlled by 401, EEP over serial communication line
The distinction between the ROM 425 and the DT-CPU 426 is the CPU 4
01 to EEPROM 425 for EPC
DC for the EN signal 442a and DT-CPU 426
This is done by generating a chip enable signal such as an EN signal 442d.

In the strobe charging light emitting circuit 403, the start / stop of charging is determined by the charge start signal (S
CHG) 434, and the emission control is also CP
It is controlled by a light emission control signal (STRG) 433 from U401. Further, the charging voltage is monitored by the CPU 401 via the I / F-IC 402, and the charging voltage monitor signal (SCH) from the strobe charging light emitting circuit 403 is sent.
This is done by checking the voltage of (GV) 452.

A display circuit (LCD) 404 is a circuit for displaying the mode and state of the camera, the number of photographic films, the switching state of the date imprint data screen size, and the like.
It is controlled by 401.

The CPU 401 controls the WZ motor 201 switching plunger 206 according to the input of the switch.
Is driven to switch the planetary gear of the driving force transmission mechanism B411 to drive the driven gear to control the zoom, film feeding, and screen size switching operations of the camera.

In the figure, reference numeral 111 is a shutter plunger for driving the shutter. The CPU 401 controls the I / F-IC to turn on / off the shutter plunger 111.
It is controlled via 402. The shutter opens when the shutter plunger 111 is driven. Then, at this time, the shutter PR110 is turned on in association with the operation of the shutter. CPU 40
Reference numeral 1 detects the ON state of the shutter PR110 to set the shutter opening timing, and starts counting processing at the exposure time and the light emission time.

When the counting of the light emission seconds is completed, the CPU 4
01 causes the strobe Xe 453 to emit light via the STRG line 433, and when the counting of the exposure time is finished, the CPU 401 shuts off the plunger 111, closes the shutter, and finishes the exposure process. There is.

Next, the release sequence will be described.

The release switch is set to 2 as shown in FIG.
There is one (1st release: 1RSW428, 2nd release: 2RSW429). The release button 30 operated by the photographer has only one PUSH switch (not shown), and 1RSW and 2RSW are sequentially turned on depending on the depth of the pressing stroke of the release button 30. That is, it is 1 in the first stroke after the start of pressing.
When the RSW is turned on and further pressed, 2 at the next stroke
RSW is turned on.

FIG. 82 shows the 1st release switch (1RSW) and the 2nd release switch (2RS).
It is a flow chart showing a release processing algorithm by the operation of W).

When 1RSW is turned on, the CPU 401
Starts the calling process as a subroutine of the program shown in FIG. 82 as the 1R process.

First, in step S100, the CPU 401
Is a light receiving element 450 for photometry via the I / F-IC 402,
The output of the PSD 420, which is an autofocus sensor, is fetched to measure the luminance of the subject (photometry) and the distance to the subject (distance measurement).

In step S101, a battery voltage that can be operated without any problem can be ensured in performing sequential control of the camera, but the determination is made in three stages. The three stages mean that the camera can function without any problem, that the battery capacity is sufficiently accumulated, and that the camera can operate without any problem, but the user is busy with the battery voltage at the lock voltage level. This is a state (warning level) that informs the user and prompts for battery replacement. The respective states are displayed on the display circuit 404.

In step S102, the charging voltage of the flash charging / light emitting circuit 403 is measured via the I / F-IC 402. In step S103, calculation for exposure control is performed based on the photometric result of step S100. The presence / absence of strobe light emission is also determined by this AE calculation, but if it is determined that strobe light emission is to occur, light emission is performed based on the strobe charge voltage measured in step S102 and the distance measurement system that is the distance to the subject. Find the amount. In this way, step S
At 103, the shutter opening time necessary for exposure control, the flash emission determination, and the flash emission amount are obtained.

In step S104, the autofocus lens extension amount for the later-described autofocus lens extension (focusing) is obtained based on the distance measurement result in step S100.

At step S105, 1RSW is confirmed,
If the switch is off here, the process returns at step S106 and ends the process.

If 1RSW is on, step S1
In step 07, it is determined whether or not the charging voltage of the strobe is at a level capable of emitting light. This level depends on the strobe charge and the circuit constant of the light emitting circuit portion of the light emitting circuit. If the determination is NG here, the strobe is charged in step S108, and if the charging is completed, the process returns in step S109 to end the release process. At this time, the strobe is not charged, so no exposure is performed.

If the charging voltage is at a level at which light can be emitted, the process proceeds to step S110, and it is determined whether or not the distance measurement result is within a range in which a predetermined performance as a photographing lens can be obtained. A warning display means (not shown) is used to display a warning to the photographer, and the process returns to step S105. Even if it is determined that the distance measurement result is OK in step S110, if 2RSW is off in step S112, the process also returns to step S105.

When it is confirmed in step S112 that 2RSW is turned on, in step S113, the autofocus lens extension control (details described later) in step S104 is performed.

After the autofocus lens is extended, in step S114, the shutter aperture control is performed based on the result of the AE calculation in step S103. After the exposure control is completed in step S114, a lens reset operation is performed in step S115 for returning the autofocus lens extended to the original position.

In step S116, the driving force transmission mechanism 4
11 is selected by the switching plunger 206 and the WZ motor 201 so that the driving force of the WZ motor 201 is transmitted to the hoisting sun gear 208.

In step S117, the WZ motor 201
And the driving force is transmitted to the selected winding sun gear 208, so that the film is wound up by one frame and at the same time, the data such as the date is imprinted. (Details will be described later) When one frame of film has been wound up, in step S118, when the camera operation mode is continuous shooting mode and 2RSW is pressed and strobe light shooting is required, strobe charging is performed up to the minimum charging voltage required for shooting. I do. Then, after step S118, the release process is ended in step S120, and one frame of the photograph is taken.

Next, the operation of the CPU 401 in the camera of this embodiment will be described with reference to the flowcharts of FIGS. It should be noted that reference numeral "B" in FIG.
"C" and "D" correspond to the reference signs "B", "C", and "D" in FIG. 84, respectively.

First, in step S201, the CPU 40
After 1 is reset when the power is turned on, the initialization operation is performed.
In step S202, the charging instruction signal SCHG434 is output to the strobe charging / light emitting circuit 403 until charging reaches a predetermined charging voltage, and charging is performed. In step S203, three timers are set and the timer starts counting.

One of the above three timers is a display timer. This timer is initialized every time the photographer operates the switch of the camera. When the timer counter overflows due to no switch operation for a predetermined time (for example, 30 seconds), the CPU 401 is set to the standby mode in order to reduce power consumption. The other timer is a 100msec timer, and periodically DT-C
It is used as a synchronization signal for inputting date data from the PU 426.

The third timer is a 10-second timer,
The operation time of the lighting device 454 that illuminates the display circuit 404 is limited.

In step S204, it is determined whether the display timer has overflowed. If the display timer overflows and the display timer ends, step S209
Move to. In this step S209, the communication mode A
To communicate. Then, here, the camera state data indicates that the CPU 401 enters the standby mode.

In step S210, in order to notify the photographer of the standby mode, all the displays are turned off. In step S211, after the interruption is permitted, the CPU 401 enters the standby mode and the operation is stopped. The operation may be started by the photographer operating a switch to generate an interrupt signal. When the interrupt signal is generated, the standby mode is released, and the CPU 401 restarts the operation from step S202.

If it is determined in step S204 that the display timer has not overflowed, then step S20 is performed.
It progresses from 4 to step S205. This step S205
Then, it is determined whether the 100 msec timer has overflowed. Here, if it overflows, the process proceeds to step S206, and if not, the process proceeds to step S212 described later.

In step S206, the communication in the communication mode A is performed, and the data necessary for displaying the date is stored in the DT-CPU.
Input from 426. Then, in step S207,
Display is performed on the display circuit 404 based on the input data. Further, a display corresponding to the operation mode of the camera is also displayed on the display circuit 404. Then, step S20
At 8, the 100 msec timer is initialized to start counting.

The above steps S205 to S20
8 the operation of the CPU 401 and the DT-CPU
The display of the display circuit 404 is updated corresponding to the operation of 426.

In the next step S212, it is determined whether or not the 10-second timer has overflowed. If it overflows here, the process proceeds to step S213 to stop the operation of the display lighting device in the display circuit 404,
It proceeds to step S214. If the 10-second timer has not overflowed, step S214 is directly executed.
Go to.

After the next step S214, the states of the setting switches 428 to 432, 444 (see FIG. 81) are input, and the camera operates according to the operating state of the switches. First, in step S214, it is determined whether or not the 1st release switch (1R switch) 428 is pressed, and if it is pressed (ON), the process proceeds to step S219 to perform a release process (photographing operation). This calls and executes the release processing program shown in FIG. 82 as a subroutine. Then, in step S219, after completion of the series of photographing operations, the process returns to step S203.

[0406] In step S214, the 1R switch 428
When it is off, the process proceeds to step S215, and the zoom UP switch (ZU switch) 430 is checked. Where Z
If the U switch 430 = ON, the process proceeds to step S220 to perform the zoom UP operation.
The zoom UP processing program shown in FIG. 5 will be called and executed as a subroutine. When the zoom-up processing ends in step S220, the process returns to step S203.

[0407] If the zoom UP switch (ZU switch) 430 is off in step S215, step S21
Go to 6 and zoom down switch (ZD switch) 4
Check 31. If the ZD switch 431 = ON here, the zoom DOWN operation is performed in step S221.
In step S221, the zoom DOWN processing program shown in FIG. 87 is called and executed as a subroutine. When the zoom DOWN process ends in step S221, the process returns to step S203.

If the zoom DOWN switch (ZD switch) 431 is off in step S216, the flow advances to step S217 to check the screen size changeover switch (PN switch) 432. If the PN switch is turned on here, the screen size switching operation is performed in step S2.
22. In step S222, the screen size switching processing program shown in FIG. 89 is called and executed as a subroutine. When the screen size switching process ends in step S222, the process returns to step S203.

[0409] In step S217, the PN switch 432.
When is off, the process proceeds to step S218, and the light switch (SET switch) 444 is checked. If the SET switch 444 is turned on here, step S22
3 and the lighting device 454 is activated. Step S2
When step S23 ends, the process returns to step S203.

[0410] In step S218, the SET switch 44.
4 is off, the process proceeds to step S224, and the MO switch 414 is checked. MO switch 41 here
If No. 4 is on, the process proceeds to step S225 and camera mode setting processing is performed. This process is a process of setting various modes of the camera to arbitrary modes. When step S225 ends, the process returns to step S203.

[0411] In step S224, the MO switch 414 is used.
When is off, the process proceeds to step S226, and the FL switch 415 is checked. If the FL switch 415 is turned on here, the process proceeds to step S227 to perform the crash mode setting process. This process is a process of setting various flash modes of the camera to arbitrary modes. Step S
When 227 ends, the process returns to step S203.

[0412] In step S226, the FL switch 415.
When is off, the process proceeds to step S228 to check the SE switch 416. If the SE switch 416 is turned on, the process advances to step S229 to perform the self / remote control mode setting process. This process is a process for setting the self mode and remote control mode of the camera. When step S229 ends, the process returns to step S203.

1R switch 428, ZU switch 43
0, ZD switch 431, PN switch 432, SET
Switch 444, MO switch 414, FL switch 4
If both the 15 and SE switches 416 are off, the process returns to step S204, and the above series of processing loops are repeated.

The operating time of the lighting device 454 is usually 1
Although limited to 0 seconds, this timer value (10 seconds) is changed in the flashing mode of date display described later. This blinking mode is used when correcting the date and time data of the DT-CPU 426, and since the operation is performed while checking the date and time, the operating time of the display lighting device 454 is extended. It will be more convenient.

Specifically, in the blinking mode of the date display,
The 10-second timer is changed to the 90-second timer by the timer setting in step S203. Accordingly, step S21
The timer time, which was determined to be ended in 2, is set to 90 seconds (step S212 ′). When the blinking mode is returned to the blinking prohibition mode, the 90-second timer is switched to the 10-second timer.

FIG. 37 shows the mechanical drive system switching section (film feeding system, zoom driving system, mechanical switching) of this embodiment and the mechanical driving sections (film feeding, zoom driving, panoramic switching) around it. It is a schematic diagram.

The W → Z switching operation (switching the mechanical driving system from the film feeding system to the zoom driving system) will be described with reference to FIGS. 37 and 85.

First, in step S250, the switching plunger 206 is turned on and the iron core 206b is attracted to release the lock from the WZ carrier 204 '.
04 'is made rotatable. The waiting time in step S251 is WZ after turning on the switching plunger 206.
This is the time until the carrier 204 'is reliably rotatable. In step S252, timer 1 is set.

This timer is a timer for detecting an abnormality in the W → Z switching operation. In step S254, the WZ motor 201 is rotated in the reverse direction, and the WZ carrier 204 'is moved in the direction in which the WZ planet gear 203' meshes with the first zoom gear 209. The planetary gear 203 is the first zoom gear 2
09, the slit portion 212a of the zoom gear 212 rotates to zoom P
The I213 outputs a pulse corresponding to the rotation.

In step S254, this zoom PI2
The pulses generated from 13 are counted, and the process proceeds to step S262 until two edges are output. Step S262
Judges whether the timer 1 has overflowed. If it has not overflowed, the process returns to step S253 and continues to monitor the pulse output from the zoom PI 213.
When the timer 1 overflows, the process proceeds to step S263, the motor is turned off, and the switching plunger 206 is turned off in step S264 to proceed to the damage process.

If it is determined in step S254 that the pulse of the zoom PI 213 has two edges, it is determined that the W → Z switching has been completely switched, and the flow advances to step S255.
Here, the timer 2 is set. The timer 2 is the time until the WZ motor 201 brakes until the overflow occurs. When the process proceeds to step S256, the WZ motor 201 is braked to start braking. Next, in step S257, the edge of the pulse output by the zoom PI 213 is confirmed. If there is an edge, the flow advances to step S258 to count down the count value ZMPLS by "1". If there is no edge, step S259.
Go to.

If it is determined in step S259 that the timer 2 has not overflowed, the process returns to step S256 to continue counting the zoom PI 213 pulses while applying the brakes. The count value ZMPLS is a value indicating the zoom position. If the timer 2 overflows in step S259, it means that the braking time has ended, and the process proceeds to step S260 to turn off the WZ motor 201. Next, in step S260, the switching plunger 206 is turned off.
Then, the W → Z switching ends.

As described above, in the W → Z switching, it is determined that the switching is completed by detecting that the zoom has moved slightly.

FIG. 86 is a flow chart showing the Z → W switching operation (switching the mechanical drive system from the zoom drive system to the film feeding system).

In step S270, the switching plunger 206
Is turned on, and the WZ carrier 204 is made rotatable in the waiting time in step S271. Step S272
Sets the timer. The timer limits the time for applying a high voltage to the WZ motor 201 when the motor for switching is started. In step S273, a high voltage is applied to the WZ motor 201 to start the motor. In step S274, it is determined whether the timer has overflowed. If it has not overflowed, the process returns to step S273 and motor high voltage driving is continued. At this time, the planetary gear 203 of the WZ carrier 204 is wound up by the sun gear 20.
It is moving in the direction to mesh with 8.

If the timer overflows, WZ
It is determined that the startup of the motor 201 is completed, and step S2
Proceed to 75. Here, the motor voltage is reduced to a low voltage. A step S276 decides whether the output signal of the carrier PI 207 is H or L.

The switching PI 207 outputs L when the WZ carrier 204 is on the Z side and outputs H when the WZ carrier 204 is on the W side. The timing of switching from L to H is before the planet gear 203 meshes with the hoisting sun gear 208. is there. Therefore, when the output of the carrier 207 is L in step S276, the low voltage forward rotation of the WZ motor 201 is continued. If the output of the carrier PI 207 becomes H, it is determined that the planetary gear 203 is meshing with the hoisting sun gear 208 and the step S277.
Go to. This waiting time is the time from when the output of the carrier PI 207 changes from L to H until the planetary gear 203 completely meshes with the hoisting sun gear 208.

Here, since the mechanical switching is completely switched from the Z side to the W side, the WZ motor 201 is braked in step S278, the switching plunger 206 is turned OFF in step S279, and then W is switched in step S280.
The Z motor 201 is turned off to complete the Z → W switching.
The motor low voltage set in step S275 in this sequence is set so that the mechanical torque generated by the voltage is smaller than the load torque applied to the spool 217, so the spool 217 rotates and is unprepared. There is no need to wind the film around.

Next, the zoom operation will be described.

FIG. 87 is a flow chart showing the zoom-up operation in the camera of this embodiment.

In step S900, the target position for zoom-up operation is set. When the lens barrel is extended from the retracted position to the wide position, the wide position is set as the target position, and when the manual zoom is set, the tele position is set as the target position. W in step S901
The Z motor 201 is rotated in the normal direction and the zoom-up drive is started. In step S902, it is determined whether or not it is being extended from the retracted position to the wide position. If so, step S9
04, otherwise, to step S903.

In step S903, it is determined whether the ZUSW 430 is ON. If not, the process proceeds to step S912, the WZ motor 201 is stopped, and the zoom-up ends. If it is turned on in step S903, the process proceeds to step S904. In step S904, it is determined whether the current zoom position has reached the target position. If the target is not reached, the process proceeds to step S905.

[0433] In step S905, the CPO pulse (pulse output by the zoom PI 213) is checked, and if it is determined that there is no edge, the flow advances to step S907.
If it is determined that there is an edge, the process proceeds to step S906, and the counter value ZMPLS indicating the zoom position is incremented by "1". In step S907, it is determined whether or not the lens barrel is being extended from the retracted position to the wide position. If so, the process proceeds to step S910.

In step S910, the zoom PR139
Determine if there was a falling edge at. If there is no fall, the process returns to step S901 to continue the zoom-up operation. If there is a fall, step S91
The process proceeds to 1 and the counter value ZMPLS indicating the zoom position is reset by the wide reset tenter WRPLS. By doing so, even if the ZMPLS up to that point shifts from the actual zoom position for some reason, it is reset to the changed position information of the signal of the zoom PR 139 indicating the absolute position of the zoom position, and the shift amount becomes φ. . Then step S
Return to 901.

If it is determined in step S907 that the lens barrel is not being extended from the retracted position to the wide position, the process advances to step S908 to determine whether the zoom PR 139 has a rising edge. If there is no rising edge, step S901
Returning to, if there is a rising edge, step S9
Go to 09. In step S909, ZMPLS is reset with the tele reset data TRPLS, and then step S901.
Return to and continue the zoom-up operation. Then, in step S904, when the current zoom position reaches the target position, the process proceeds to step S912, the WZ motor 201 is stopped, and the zoom-up operation ends.

FIG. 88 shows the zoom PI 213, zoom PR 139 and Z in the flowchart shown in FIG.
MPLS and actual zoom position (collapse, WIDE, TEL
It is explanatory drawing which showed simply about E).

FIG. 89 is a flow chart showing the zoom-down operation in the camera of the above embodiment.

A step S930 sets a target position for the zoom-down operation. When retracting to the retracted position, the retracted position is the target position, and when manual zooming down, the wide position is the target position. In step S931, the WZ motor 201
Reverse to start zoom down drive. Step S
At 932, it is determined whether or not it is being retracted.
If it is in the process of transfer, the process proceeds to step S934,
If not, the process proceeds to step S933.

In step S933, the ZDSW 431 turns off.
If it is not ON, the process proceeds to step S940, the WZ motor 201 is stopped, and the zoom down ends. If it is ON, the process proceeds to step S934. In step S934, it is determined whether the current zoom position has reached the target position. If the target is not reached, the process proceeds to step S935.

In step S935, the CPO pulse (pulse output by the zoom PI 213) is checked, and if it is determined that there is no edge, the flow advances to step S937.
If it is determined that there is an edge, the process proceeds to step S936, and the counter value ZMPLS indicating the zoom position is counted down by "1".

[0441] In step S937, it is determined whether or not the retracting operation is in progress. If the transfer is in progress, the process proceeds to step S938. In step S938, the zoom PR1
It is determined whether 39 has a rising edge.
If there is no rising, the process returns to step S931 to continue the zoom down operation. If there is a rise, step S
The process proceeds to step 939, and the counter value ZMPLS indicating the zoom position is reset by the wide reset tenter WRPLS. By doing so, even if the ZMPLS until then is displaced from the actual zoom position for some reason, it is reset to the change position information of the signal of the zoom PR 139 showing the absolute position of the zoom position, and the displacement amount is φ. Become. Then, it returns to step S931.

If it is determined in step S937 that the lens barrel is not retracted, the process returns to step S931 to continue the zoom-down operation. Then, in step S934, when the current zoom position reaches the target position, the process proceeds to step S940 and W
The Z motor 201 is stopped, and the zoom down operation ends.

FIG. 90 shows zoom PI213, zoom PR139 and Z in the flowchart shown in FIG.
MPLS and actual zoom position (collapse, WIDE, TEL
This is a brief description of E).

Next, regarding the autofocus calculation processing,
Description will be made with reference to the flowchart in FIG.

In the flow chart shown in FIG. 91, first, in step S751, the reciprocal 1 / L of the distance from the camera to the subject is calculated from the autofocus distance measurement value obtained in step S100 of the flow chart shown in FIG. To do.

Next, in step S752, the above 1 /
It is determined whether the L data has become larger than the closest value, and if the 1 / L data is the closest value or more, step S
Proceeding to 753, the 1 / L data is rounded to the nearest value. Then, the process proceeds to step S754, and the number of feeding pulses is calculated based on the 1 / L data. The calculation here uses an approximate expression that also takes into account the zoom encoder value in addition to the 1 / L data.

Next, in step S755, a zoom focus correction amount which is a shift amount at the infinite position due to zooming is calculated from the zoom encoder value. The zoom focus correction amount is obtained by a value converted to correspond to the number of output pulses. After that, in step S756, the zoom focus correction amount is added to the number of forward pulses to be stored as a new number of forward pulses.

Next, the exposure processing will be described with reference to the flowchart in FIG. This process is the process of step S114 in the main flow of FIG.

First, in step S801, energization of the shutter plunger 111 is started. Next, step S80.
At 2, the shutter PR 110 is checked for on-state.
Here, if the shutter PR110 is off, step S
Proceed to 811 to check the energization time. If the energization time to the shutter flanger 111 is within 0.5 seconds, the process returns to step S802 and the shutter PR110 is checked again. Here, if 0.5 seconds or more has passed after energization, the process proceeds to step S812, and the shutter plunger 1
The energization of 11 is terminated, and the process proceeds to the damage process. This indicates that the shutter did not open even though the shutter plunger 111 was energized.

Next, in step S802, the shutter PR1
When 10 is turned on, the process proceeds to step S803, and the hard timer T1 inside the CPU 401 is started. This timer T1 is set so as to overflow at the minimum resolvable time of the exposure time and the light emission time obtained in step S103 in the main flow of FIG. Next, in step S802, the overflow of T1 is checked.

If it is before overflow, the process returns to the step S802 and the wait process is continued. If there is an overflow of T1, the process proceeds to step S805, and the light emission time is counted. In the next step S806, if the counting of the light emission time is completed and the light emission timing is reached, the process proceeds to step S807 and the light emission process is performed.

If it is before the light emission timing in step S806, the process proceeds to step S808, and again step S103.
Count the exposure time obtained in. Next step S8
When it is determined that the exposure is completed in 09, the process proceeds to step S810 and the exposure is completed.

If it is determined that the exposure has not been completed, then the flow returns to step S804, and the overflow of T1 is checked again.

[0454] Here, the processing when it is determined that the light emission timing in step S806 is described will be described.

In step S807, the state of light emission obtained during the AE calculation is checked. If there is light emission, the process proceeds to a light emission processing step S813 for controlling the light emission signal of the strobe charging light emission circuit 403. After the light emission processing is completed, the process proceeds to step S808 to advance the exposure time. If no light is emitted, the process proceeds from step S807 to step S8.
Go to 09.

The above is a description of the exposure processing loop.

After the exposure is completed, in step S810, the shutter plunger 111 is turned off and the shutter is closed. This is the end of all the description of the exposure processing.

Next, the details of the autofocus lens extension operation (step S113 in FIG. 82) and the autofocus lens reset operation (step S115 in FIG. 82) will be described.

FIG. 95 is a development view showing the auto-focus lens extension mechanism in the camera system of this embodiment.

In the figure, reference numerals 142 and 143 are pins and a photographing lens for adjustment. As shown by an arrow in the figure, the focus adjustment (automatic adjustment is performed by moving in the front-rear direction in parallel with the two-dot chain line representing the center line of the optical axis). Focus extension operation) is performed.
The focus adjustment movement of the photographing lenses 142 and 143 is performed by the focus cam ring 58 pivoting about the optical axis center line, and via the cam follower 55d of the third lens group frame 55 contacting the cam surface 58a of the focus cam ring 58. Are transmitted to the taking lenses 142 and 143. The second lens group frame 54 is biased by the second lens group spring 61, so that the second lens group frame 54 and the third lens group frame 55 are constantly extended and retracted integrally with the rotation of the focus cam ring 58. It will be.

The driving force of the AF motor 108 is transmitted via the focus driving gear train 146 as the rotational force of the focus cam ring 58, and as a focus adjusting operation of the taking lenses 142 and 143. The movement of the focus adjustment of the photographing lenses 142 and 143 is controlled by monitoring the movement of the AF motor 108 by the CPU 401 by the pulse of CPO in FIG. 81 generated in synchronization with the focus PI 109.

The amount of extension of the autofocus lens obtained by the autofocus calculation of the release sequence described above is represented by the count (pulse number) of the pulses generated in the CPO 435 in FIG.

93 and 94 show the AF motor 108.
And the focus PI 109 and the taking lenses 142 and 143
93 is an expanded view of the movement of FIG. 93, FIG. 93 shows a state when the photographing lens is extended, and FIG. 94 shows a state when the photographing lens is reset.

The AF motor 108 is rotated in the reverse direction, and the AF motor 108 is rotated in the forward direction to extend the taking lenses 142 and 143 with reference to the point 620 at which the focus cam ring 58 hits. Then, the photographing lens is extended by the predetermined number of pulses obtained by the autofocus calculation. Further, in a steady state in which the camera does not perform the photographing operation, the photographing lenses 142 and 143 are set to the lens reset position 642, and the autofocus lens reset operation means that the photographing lens 611 is moved to the lens reset position 642.
Is to move up. These lens drive operations are C
96 is processed by a program stored in a ROM (not shown) in the PU 401, and a flowchart of the program is shown in FIG.

The program in this flow chart is called as one subroutine as auto focus lens extension (step S113) and auto focus lens reset (step S115) on the release processing program (flow chart of FIG. 82).

In extending the AF lens, first, in step S
Step S3 of rotating the AF motor 108 in the reverse direction at 301
In 02, it is determined whether or not the taking lenses 142 and 143 have hit the reset direction. If not, continue rotating the AF motor 108 in the reverse direction, but if it is, step S
Proceeding to 303, the AF motor 108 is rotated in the forward direction to extend the photographing lens. In step S304, the taking lens 142,
A control range in driving 143 (652 to 65 in FIG. 93)
3) Determine whether you entered. This decision is based on CPO435
The pulse generated in step S303 is counted by the value counted in step S303.

When it is within the control range, the taking lenses 142 and 143 obtained by first counting the pulse of the focus PI 109, that is, the CPO signal.
Is compared with the target position to check whether it is one pulse before the target position, and if it is one pulse before the target position, the brake is applied and the control ends (step S306, step S307, step S308). Normally, immediately after entering the control range, one pulse before the target position has not been reached, so the current moving speed of the taking lenses 142 and 143 is compared with the value on the deceleration curve corresponding to the current moving amount. To do.

The value on the deceleration curve is previously stored in the ROM (not shown) in the CPU 401. Here, the moving speed of the photographing lenses 142 and 143 is C
It is detected by measuring the pulse interval of PO. If the moving speed is faster than the deceleration curve, step S3
From step 09 to step S314, the brake is applied to decelerate.

If it is late, the flow advances from step S309 to step S315 to subtract a certain value x from the value of the deceleration curve,
Determine whether it is faster or slower than this. If it is determined to be fast, the motor is opened (OFF) in step S316.
Then, the taking lenses 142 and 143 are moved by inertia. When it is determined that the target position is late, it is determined in step S317 whether the position is within 3 pulses (not limited to 3 pulses) before the target position. If it is within 3 pulses, set a flag to recognize that control acceleration is in progress.
The F motor 108 is turned on (step S319), and if not within 3 pulses, the AF motor 108 is simply turned on (step S318).

After the AF motor 108 is judged to be ON / OFF, braked, and reverse brake as described above, and then controlled, the pulse of CPO is raised to detect the moving speed of the taking lenses 142 and 143. It is detected (step S320). That is, the time from the previous rise of the pulse is calculated at the time of the rise of the pulse, and this is set as the moving speed of the taking lenses 142 and 143 (step S321). If there is no rising of the pulse of CPO, and if the time without this rising is counted and a certain period of time has passed, then at this time, it is determined that it has stopped before reaching the target position for some reason (step S324). The AF motor 108 is forcibly turned on and waits for the pulse to rise. This fixed time is called a stop limiter.

This stop limiter makes this program resistant to heavy load conditions. The stop limiter causes the moving speed to exceed the speed detection limit of the program due to a decrease in the motor voltage or an increase in the load on the movement of the photographing lenses 142 and 143. It becomes an effective function when it is lost. After the stop limiter is turned on (step S325), if there is no rising of the CPO pulse even after a lapse of a certain period of time, it is determined that the state is abnormal (step S326).
The process proceeds to step S327 in order to turn off the F motor 108 and perform abnormality processing.

When the CPO pulse rises, speed detection is performed in step S321, and thereafter, it is determined in step S322 whether the vehicle is in the limited acceleration or the stop limiter. If so, the AF motor 108 is turned off or the AF motor 108 is braked (step S323). If not, the process is returned to step S306 without doing anything and it is determined whether it is one pulse before the target position. When one pulse is reached, the brake is applied in step S307 to end the driving of the photographing lens (step S308). The control operation described above is repeated until one pulse is reached, so that the photographing lenses 142 and 143 decelerate toward the target position along the deceleration curve.

FIG. 97 shows the taking lenses 142 and 143.
FIG. 6 is a diagram showing the process of deceleration of 1 by a moving amount and a moving speed.

In FIG. 97, the horizontal axis indicates the taking lens 1.
The movement amounts of 42 and 143 are shown, and the vertical axis shows the movement speed. A deceleration curve is shown by a broken line 700, and a curve obtained by subtracting the value x from the deceleration curve is shown by a broken line 701. In the figure, a portion shaded to the upper right is an on-region where the AF motor 108 is turned on.
The area with a diagonal line descending to the right next to 01 is A
This is an open area in which the F motor 108 is opened (turned off). The area defined by vertical lines with the deceleration curve curve 700 as a boundary is the braking area.

Next, the control operation of the AF motor 108 will be described first in the case of the movement curve curve 702.

When the photographing lenses 142 and 143 are moved into the control range, the speed at this time is reduced by the deceleration curve 700.
It's faster, so it immediately brakes and slows down. The AF motor 108 is turned off when the speed is slower than the deceleration curve curve 700 and enters the open range, and the speed is higher than the deceleration curve curve 700 and the brake range is entered.
When the AF motor 108 is braked and becomes slower than the deceleration curve curve 700 and enters the open area, the AF is restarted.
The motor 108 turns off. Thus the deceleration curve 70
The speed decelerates along 0, and the brake is applied 1 pulse before the target position and the vehicle stops at the target position.

In the case of the movement curve curve 703, since the initial speed is slow, the AF motor 108 continues to be turned on even within the control range, and when it becomes faster than the curve curve 701 and enters the open area, the AF motor 108 is turned on. The brake is applied when the brake pedal is turned off and becomes faster than the deceleration curve 700 and enters the brake area. Then, it is decelerated by the brake and is turned off when it enters the open range. Then, when the result is later than the curve curve 701 and enters the ON region, the brake is applied one pulse before the target position and the brake is stopped.

Next, the operation of the limit acceleration and stop limiter in the flow chart shown in FIG. 96 will be described with reference to the time charts shown in FIGS. 98 and 99.

98 and 99 show the focus PI 109.
Output pulse waveform (CPO) 435 of the AF motor 10
8 is a time chart showing ON and OFF states of No. 8;

The pulse width of the CPO pulse waveform is CPU4
It is measured by a speed detection unit (not shown) in 01. If the pulse width is short, the moving speed of the photographing lenses 142 and 143 is high, and if the pulse width is long, the moving speed is slow. Then, the AF motor 108 is turned on and the photographing lens 1
When 42 and 143 enter the control range, control of turning on and off the AF motor 108, braking, reverse rotation braking, and the like starts.

In the time chart of FIG. 98, when the moving speed at the rising position (1) of the CPO pulse is faster than the value of the curve 701 obtained by subtracting the value x from the deceleration curve 700, the braking range shown in FIG. It is an open area. Then, the speed is detected at the next rising position (2) of the CPO, and as a result, if the speed is slower than the curve 701, A is detected.
The F motor 108 turns on. Then, even at the rising position (3) of the next pulse, the AF motor 108 is kept on unless the speed becomes faster than the curve 701. When the rising position (4) of the next pulse is reached and the speed detection result is faster than the curve 701, the AF motor 1
Open 08 and stop acceleration. This position (4)
Is 3 pulses before the target position (7), but the speed check is given priority, so if it is faster than the curve 701, it is not checked at this time whether it is 3 pulses before.

When the speed detection result at the rising position (5) of the next pulse becomes slower than the curve 701, naturally, at this time, it is within the range of 3 pulses before the target position (7), so that the acceleration is limited. The AF motor 108 is turned on. Then, after the speed detection at the rising position (6) of the next pulse, the limited acceleration is stopped and the AF motor 10 is stopped.
Turn off 8 or apply brakes. This prevents the target position from being exceeded due to excessive acceleration just before the stop position. Then, at this time, if the position is one pulse before, the brake is immediately applied.
2 and 143 stop at the target position (7). Further, as the method of limited acceleration, the AF motor 108 may be turned off or braked at the pulse trailing edge following the pulse leading edge position (5) to prevent excessive acceleration.

In the time chart of FIG. 99, when there is no next pulse at the rising position (8) of the pulse at the end for a certain period of time, that is, the program speed measurement limit is exceeded due to overload, voltage drop, etc. within the control range. When the lens movement is erroneously stopped due to the determination in this state, the AF motor 108 is forcibly turned on and kept on until the pulse rises. Here, if there is no rise for a certain period of time, it is regarded as an abnormal state,
The AF motor 108 is turned off and the abnormality processing is performed. When there is a rise, the AF motor 108 is turned off or the brake is applied, the moving speed is detected again, and the AF motor 1 is detected.
The control of 08 is performed to decelerate to the target position along the deceleration curve. This is a stop limiter, which is resistant to overload during control. Since the stop limiter is an emergency, it is desirable to prevent it from working as much as possible.

In the time charts shown in FIGS. 98 and 99, the AF motor 108 is turned on and off after a certain fixed time has elapsed from the rising edge of the pulse. During this time, the CPU 401 controls the motor. Is the time required for the judgment. The turning off of the AF motor 108 by the limited acceleration and the stop limiter almost coincides with the rising edge of the pulse.

Next, the autofocus lens resetting operation will be described. This is basically the same algorithm as the autofocusing lens extending operation.

In the flowchart shown in FIG. 96, when the program for the autofocus lens reset operation is executed, first, the target pulse number is set in step S331. This pulse number is the same as the target pulse number when the AF lens is extended. Is.

Next, in step S332, the motor reverse rotation drive is started, and the flow advances to step S304. That is, when the lens is reset, the lens stop position 6 when the AF lens is extended 6
The curve is controlled by counting the CPO pulse with 54 as the base point. The stop target position, which is the reset position at this time, is
It is a position moved from the lens stop position 654 in the reset direction by the number of target pulses to be fed. This position is shown in Figure 94.
In the position of the photographing lens, the position is near the lens reset contact position 651.

FIG. 38 is a perspective view showing a film winding and rewinding mechanism in the camera of this embodiment.

The operation of the film winding and rewinding mechanism will be described in detail with reference to FIGS. 39 to 42.

During film winding, the planetary gear 20
3 meshes with the hoisting sun gear 208. When the WZ motor 201 rotates in the CW direction in the figure, the torque is transmitted from the sun gear 202 to the planet gear 203 and the hoisting sun gear 208, and the hoisting planetary gear 215 meshes with the spool 217. When the rotation is further continued, the spool 217 starts to rotate in the direction of pulling out the film 13 from the cartridge 14, and the film 13 is wound up. The winding amount is determined by detecting the perforation holes of the film 13 by the film PR249 provided so as to face the film 13 and counting the perforation holes.

Now, the winding operation will be described with reference to the flow chart shown in FIG.

First, in step S410, the film end detection timer is set. If the timer set here overflows, it can be determined that the film has reached the final end during winding. Next, in step S411, the film PR2
Turn on 49. With this, CPO435, film 1
A pulse corresponding to the perforation of 3 is generated. In step S412, the counter of the pulse generated in the CPO 435 is cleared. In step S413, the spring of the WZ motor 201 at the start of winding is set to a high voltage so that the winding can be performed at high speed.

In step S414, the motor drive is started and the winding operation is started from here. Step S415
Then, the pulse of CPO 435 is monitored to determine whether or not there is a pulse falling. If there is no fall, the process immediately proceeds to step S420. If there is a fall, the process proceeds to step S416, and the counter value cleared in step S412 is incremented by 1.

[0494] In step S417, it is determined whether the count value has reached 1/2 of the film feed amount for one frame. If not, the process proceeds to step S419. If so, the process proceeds to step S418 and the WZ motor 20
The voltage of 1 is set to a low voltage, and the process proceeds to step S419.

In step S419, it is determined whether or not the counter value has reached the film feed amount for one frame, and if it has not reached, the process proceeds to step S420, and if it has reached, the one frame winding is completed and the process proceeds to step S421. Step S42
At 0, it is determined whether the film end detection timer has overflowed. If it has not overflowed, the process returns to step S414 and the film winding control is repeated.

If it has overflowed, the winding operation judges that the film end has been reached, and shifts to the film end processing for automatic rewinding. In addition, step S41
If it is determined in step 9 that the winding of one frame has ended, the process proceeds to step S421, and the WZ motor 201 is braked for a certain period of time to stop the winding of the film 13.

The reason why the drive time of the WZ motor 201 is reduced during the winding operation in step S418 is to secure the film stop position with good accuracy even with the simple brake in step S421.

Since the date / time imprinting mechanism in this embodiment employs a method performed during film winding, this imprinting method will be described below.

52 to 57 are views showing the imprinting mechanism.

Further, for imprinting, a roller 260 which is in contact with the film 13 so as to be rotatable according to the movement of the film, data PR261 for detecting the rotation of the roller 260, and a photographing opening portion of the main body 4. 4c, a 7-segment LED 248 installed at a position on the spool 217 side facing the photosensitive surface of the film 13, and a 7-segment LE between the film 13 and the 7-segment LED 248.
A date lens 247 installed at a position where the light of D248 is imaged on the surface of the film 13 is also configured.

When the film 13 is wound up, the roller 260 in contact with the film 13 is rotated, and this rotation is detected by the pulse output from the data PR 261 and the pulse count amount becomes the film movement amount. Also, the data P
Imprint LED 24 in synchronization with the output pulse of R261.
8 is lit, and the characters to be imprinted are sequentially imprinted.

The date imprinting operation will be described with reference to the flowchart shown in FIG.

First, in step S430, the imprinting parameter is transferred from the CPU 401 to the DT-CPU 426. This is called communication mode B. The imprint parameters include ISO information of the film, the light emission time of the 7-segment LED 248 in ISO100, the imprint position, and the like CP.
It is data necessary for imprinting that U401 has.
In step S431, the CPU 401 to the DT-CPU
Transfer the standby command to 426, and DT-
The CPU 426 is set to the date imprinting standby mode.
This is called communication mode C. In step S432, winding is started and the WZ motor 201 starts operating.

A step S433 decides whether or not the predetermined perforation is wound after the start of winding. If the predetermined perforation is not wound, step S433.
Is repeatedly executed. If wound, step S
Proceed to 434. In step S434, the data PR26
The pulse output by 1 is monitored, and it is determined whether or not a predetermined number of pulses have been wound after proceeding to step S434. If the predetermined pulse has not been wound, step S434 is repeated, and if it has been wound, the process proceeds to step S435.
The imprinting operation is started from here, and in step S435,
The trailing edge of the pulse output by the data PR261 is determined. If there is no fall, step S435 is repeated, and if there is a fall, step S436 follows.

The fact that the operation has proceeded to step S436 means that
This means that after the start of winding, the first imprinting synchronization signal is output after winding by a predetermined perforation and a predetermined pulse, and the first character of the imprinted characters is imprinted. In step S437, it is determined whether or not the imprinting has finished for eight characters. If not, the process returns to step S435 to wait for the falling pulse of the imprinting PR821. If it has ended, the process advances to step S438 to execute imprinting end processing. The imprinting end processing is D
The T-CPU 426 is released from the imprinting standby mode. This completes the imprinting operation of the date and the like in parallel with the winding operation.

FIG. 102 is a diagram showing the imprinting operation.

In the figure, T440 is the winding start point,
The movement of the film starts from here. Film PF249
Reads the perforation of the film and monitors whether or not the predetermined perforation is wound (T44
1). Then, the pulse of the data PR261 is read, and it is monitored whether or not a predetermined pulse has been wound (T442). After the predetermined pulse has been wound up, the next pulse output from the data PR261 is waited for the trailing edge, and this trailing edge becomes the imprinting start position (T443), and the imprinting synchronization signal is set to DT-CP.
Output to U426. D receiving the imprint sync signal
The T-CPU 426 causes the 7-segment LED 248 to emit light in the character pattern of the first character.

Thereafter, each time the pulse of the data PR261 falls, the imprinting synchronization signal is output, and imprinting for 8 characters is executed (T444).

In this embodiment, '93 1 1 (9
Although a character pattern "January 1, 3rd" is imprinted, FIG. 102 is a view of the photograph seen from the back, and an actual photograph is imprinted in a shape as shown in FIG. As for the photograph, it will be rolled up to the right in the figure and will be imprinted from the end of the letter example. The imprinting position can be freely changed by changing the predetermined number of perforations at T441 and the number of predetermined pulses at T442 in FIG. The predetermined perforation and the predetermined pulse are one of the imprinting parameters in step S431 of FIG.

Next, rewinding will be described.

In FIG. 38, when the camera is retracted, the panoramic planetary gear 220 meshes with the first rewinding gear 224 in conjunction with the rotational position of the rotary frame 51 of the lens frame. When the WZ motor 201 rotates in the CCW direction in the figure,
The torque is the same as that at the time of hoisting
It is transmitted up to 08. This direction of rotation rotates the hoisting planetary gear 215 towards the panoramic sun gear 219,
Let it mesh.

When the rotation is further continued, the panoramic planetary gear 220 rotates, the rewinding gear trains 224 to 231 also rotate, the rewinding fork 231a also rotates, and the film 13 is wound around the cartridge 14 and wound. It is a return operation.

The above rewinding operation will be described with reference to the flowchart shown in FIG.

First, in step S450, a timer for detecting the end of rewinding is set. In the next step S451, the film PR249 is turned on so that the perforation holes of the film 13 can be counted. A step S452 clears the value of the counter that counts the pulses interlocked with the perforation holes. Step S
At 453, motor driving is started and rewinding is started. From the next step S454, the rewind sequence loop is entered.

[0515] In step S454, the carrier PI 207 in Fig. 38 is checked. Carrier PI207 is
The planetary gear 203 is a photo interrupter which is turned on when the planetary gear 203 is engaged with the winding sun assembly or -208. The rewinding direction is a direction in which the planetary gear 203 is moved toward the zoom side, and if the locking operation of the locking lever 218 of the carrier 204 (not shown) is abnormal, the WZ motor 2
The rotation of 01 in the rewinding direction causes the planetary gear 203 to move to the zoom side (first zoom gear 209). A leaf switch or the like may be used as the carrier PI 207 for detecting this.

If the carrier PI 207 is turned off, it means that the rewinding is not normally performed, and the process advances to step S467 to stop the WZ motor 201 and execute the damage process. If it is ON, it is determined that the rewinding is normally performed, and the process proceeds to step S455.

[0517] In step S455, the film PR24
The falling edge of the perforation pulse output from the CPO 435 is detected according to the signal of 9. If there is no edge, the process proceeds to step S459, and if there is an edge, the process proceeds to step S456. In step S456, the rewinding end detection timer is reset. As a result, the determination of the end of rewinding is made based on the elapsed time after the last falling edge of the CPO 435. Next in step S45
Proceed to 7.

[0518] In step S457, the perforation pulse is counted and it is checked whether or not one frame has been rewound. If one frame has not been rewound, the process returns to step S454, and if one frame has been rewound, step S458.
Go to. In step S458, the current frame number is counted down. Also, since one frame has been rewound, the perforation pulse counter is cleared again. Then, the process returns to step S454 to continue the rewinding sequence.

[0519] In the determination of step S455, step S45
When the process proceeds to 9, it is determined in step S459 whether the rewinding end detection timer has overflowed. If it has not overflowed, it is determined that the rewinding is not completed, and the process returns to step S454 and the rewinding sequence is continued. When it overflows, the rewinding is completed, and the process proceeds to step S460 to stop the WZ motor 201.

[0520] Next, proceeding to step S461, the frame numerical value at the time when it is determined that rewinding has ended is checked. At this time, if the number of frames is 1 or less, it means that the rewinding is successful and the rewinding is completed. If the number of frames is not 1 or less, it is determined that the rewinding has ended halfway for some reason, and damage processing is performed.

Next, a communication method between the CPU 401 and the DT-CPU 426 will be described based on the time charts of FIGS. 105 (a), 105 (b) and 105 (c) and the electric circuit diagram shown in FIG.

In the data communication direction in FIG. 105, the hatched portion is DT-CPU 426 for the sake of convenience.
From the CPU 401 to the CPU 401, and the other communication from the CPU 401 to the DT-CPU 426.

For communication, the CPU 401 uses the DCEN line 4
It is started by setting 42d from high level (Hi) to low level (Lo). The communication request is the CPU 401.
Is generated only from the CPU 401 and the DT-CPU4.
In the relationship of 26, the relationship between the master and the slave is maintained.

After the DCEN line 442d is set to Lo, the CPU 401 waits for a predetermined time and then the CPU 401 sets the SCLK
SDATA line 4 in synchronization with the signal on line 442d
Output the control command on 42c. The waiting time is DT
-It is determined in consideration of the processing speed of the CPU 426. The control command is used by the DT-CPU 426 to identify the communication mode. Therefore, in any communication mode, the control command is located at the head of the communication data.

Referring to FIGS. 105 (a) and 81,
The communication mode A will be described. The CPU 401 outputs a code corresponding to the communication mode A as a control command as the first data. Next, the data including the code indicating the state of the camera is output. Based on this camera state data, the DT-CPU 426 can determine whether the CPU 401 is in normal operation or about to enter the standby mode. Also, a MODE switch 443 and a SET switch 444 connected to the CPU 401.
The state (ON or OFF) of can be determined.

When the CPU 401 completes the output of the two data, the DT-CPU 426 outputs the six data necessary for displaying on the display circuit 404 to the CPU 401. After this data output, the check code is output and the data output ends. The CPU 401 determines that the communication operation is completed by inputting the check code, and sets the DCEN line 442d from Lo to Hi. Check code for CPU 401 in any communication mode
Is configured to end by inputting.

Next, six data will be described.

The display control data is data indicating the display method on the display circuit 404. Following the display control data,
Data indicating "year", "month", "day", "hour", and "minute" is output. Five pieces of data show the contents of a clock counter that counts a clock reference clock (not shown) generated inside the DT-CPU 426. CPU 401
Indicates which of the five data should be displayed on the display circuit 404 (display mode) by the display control data. As shown in FIG. 106, the display circuit 404 displays these data relating to the imprinting in a 6-digit 7-segment display.

FIG. 109 is a chart showing the correspondence between the above data and display modes.

This data also shows the imprint mode when the DT-CPU 426 imprints the date data on the film 801. This display mode is changed as “1” → “2” → ... → “5” → “1” every time the MODE switch 443 connected to the CPU 401 is turned on.

Next, the lower 4 bits of data will be described. Of the 6-digit display on the display circuit 404, the CPU 4
This 4-bit data indicates which digit 01 should blink (flashing mode).

FIG. 110 is a chart showing the correspondence between the above data and the blinking mode.

In this table, it is assumed that the digits indicated by the shaded areas blink. In this blinking mode, every time the MODE switch 443 connected to the CPU 401 is turned on,
"1" → "2" → "3" → "4" → "5" → "6" →
It is changed to "1".

The blinking mode is switched by keeping the MODE switch 443 continuously turned on for a predetermined time.

The photographer operates the switch 443 to blink the desired digit. And also MODECP
When the SET switch 444 connected to the U401 is operated, the DT-CPU 426 changes the content of the clock counter corresponding to the blinking digit and outputs the changed data to the CPU 401. Therefore, the photographer can change the date data while checking the display circuit 404.

Communication mode B will be described below with reference to FIGS. 105 (b) and 81.

The CPU 401 outputs a code corresponding to the communication mode B as the first data as a control command. Next, the DT-CPU 426 outputs 2 bytes of the control parameter required when imprinting the date data on the film 13. The data contents of the control parameters are shown in FIG.

The imprinting time for one digit of the date data (that is, the light emission time of the 7-segment LED 248) is the imprinting reference time of the control parameter 2 and the control parameter 2.
It is determined by the film sensitivity coefficient of the upper nibble. STD
TM × FSK = light emission time.

The imprinting format of the lower nibble of the control parameter 2 is used to select whether to imprint the date data from the lower digit or from the upper digit. This is data determined by the position of the 7-segment LED and the moving direction of the film 13.

Communication mode C will be described below with reference to FIGS. 105 (c) and 81.

The C mode is a communication mode in which the code corresponding to the communication mode C is a control code and is output by the CPU 401. Communication mode C is CPU 401
Is a mode that is executed immediately before winding the film, the DT-CPU 426 can detect the timing of winding by receiving this communication.

Next, the operation of the DT-CPU 426 in the camera of this embodiment will be described with reference to the flowchart in FIG.

In step S501, the DT-CPU 42
After 6 is reset by turning on the power, the initialization operation is performed.
In this initialization, predetermined data is input to the clock counter used as the imprinted data. Next, in step S502, the DT-CPU 426 is set to the stop mode. In the stop mode, only the clock timer that counts the oscillator clock and the interrupt function are in a low power consumption mode. The clock timer overflows at 1 second intervals. This overflow is one of the interrupt signals.

Therefore, the date data is created by counting up the five clock counters (minute, hour, day, month, year) using this interrupt signal as a reference clock.
Therefore, when an interrupt is generated by the clock timer, the clock counter is updated by the processing of steps S503 and S504. When the counter is updated, the process proceeds to step S502 and the stop mode is set.

The CPU 401 periodically communicates with the DT-CPU 426 when it enters the operating state. That is, DCE
The N line 442d is set from Hi to Lo. This DC
A communication interrupt occurs due to a change in the EN line 442d, and the process proceeds to steps S505 and S506. In step S506, processing corresponding to each communication mode is performed.

In steps S507 and S508, the two switches MO connected to the CPU 401 are connected.
The state of DE, SET 443, 444 is judged. The states of these switches are transmitted from the CPU 401 to the DT-CPU 426 through the communication of step S506. If any switch is operated, step S51.
Move to 0. Then, the processing corresponding to each switch is performed. When the MODE switch 443 is operated, the imprinting mode is changed and the display control data sent to the CPU 401 is changed.

When the MODE switch 443 is continuously turned on for a predetermined time, the mode is set to the correction state of date data and the digit to be corrected is selected. Then, the display control data is changed to blink the selected digit. Further, when the SET switch 444 is operated, the content of the clock counter corresponding to the selected digit is corrected.

In step S511, it is determined whether the clock timer has overflowed. When it overflows, the process of step S512 is executed in order to update the clock counter. Then, step S5
At 13, it is determined whether or not a communication request has been made, based on the state of the DCEN line 442d. DCEN line 442d is H
If i, go to step S507; if Lo, go to step S5
14 respectively.

In step S514, processing corresponding to each communication mode is performed. Then, in step S515, the operating state of the CPU 401 is determined from the code indicating the state of the camera. Here, when the CPU 401 is about to enter the standby mode, the process proceeds to step S502 to reduce the power consumption. On the other hand, step S515
If it is not in the standby mode in step S516
Move to. Then, when the control parameter is input in the communication mode B, the process proceeds to step S517.

In step S517, the product of step STDTM and FSK included in the control parameter is calculated for controlling the light emission time of the imprinting 7-segment LED 427. This value is TON. Next, according to the imprinting mode, the value of the counter corresponding to the date data to be imprinted is read from the clock counter. This value is converted into data for lighting the 7-segment LED. This data is 8-byte data (DATA1 to DATA1) including data other than numbers.
DATA 8). An example of data other than numbers is shown in FIG.
Shown in. When you imprint September 15, 1990 as shown,
The part indicated by "s" in the drawing is also treated as data for lighting the LED.

Then, in step S518, it is determined in communication mode C whether or not CPU 401 has issued the imprinting request. If there is a request, the subroutine "imprint" of step S519 is executed.

Next, referring to the flow chart shown in FIG. 108, the sub-routine of the imprinting operation in the camera of the above embodiment will be described.

[0553] In step S551, it is determined whether the imprint prohibition mode is set. If it is in the prohibit mode, it returns. As shown in FIG. 102, the CPU 401 is the film 1
When the winding of No. 3 is started, an imprinting synchronization signal is generated at a predetermined position. In step S552, a change from "High" to "Low" level of the imprint synchronization signal, that is, a falling edge is detected. If the falling edge of the imprint sync signal is detected, the flow advances to step S553 to output the data for lighting the 7-segment LED to the DT-CPU 426.
Output from the output port of. As a result, the imprinting for one character is performed.

In step S554, the timer counter is initialized and then counting up is started. Then, during the imprinting time (TON), the process stands by in step S555.
Then, in the next step S556, the LED is turned off and the numeral 1
Imprinting for one is completed. Next, in step S557, it is determined whether or not the imprinting of data of 8 bytes (eight characters) has been completed. Steps S552 to S above
By the processing of 557, the data of DATA1 to DATA8 is sequentially copied.

[0555] Next, the screen size switching will be described.

In FIG. 38, if the lens frame is not in the collapsed state, the panoramic planetary gear 220 is meshed with the cam gear 222 for switching the screen size. FIG. 113 is a time chart showing the screen size switching operation.

Shading masks 242, 24 on the film screen
3 will be described starting from the standard position. WZ at T630
The motor 201 is reversely rotated to start switching from the standard state to the switching state. Shade mask 24 at T631 during motor reverse rotation
2, 243 completes switching to the switching state. Then T
At 632, the PN detection SW 245 is turned on, and by monitoring this, it can be determined that the switching has been completed.
Immediately at T632, the motor short brake, the motor forward brake, and the motor short brake are actuated to stop the mechanical overrun to a minimum, and the switching control ends. The switching from the switching state to the standard state is started from T640.

The rotation direction of the WZ motor 201 is the same as the switching from the standard state to the switching state. W at T640
The Z motor 201 is reversely rotated to start switching from the switching state to the standard state. The light shielding masks 242 and 243 complete the switching to the standard state between T641 and T642 during the reverse rotation of the motor. After that, at T643, the PN detection switch 245 turns off.
The FF state is entered, and by monitoring this, it can be determined that the switching has been completed. At T643, the motor short brake, the motor forward brake, and the motor short brake are immediately actuated to stop so that the mechanical overrun is minimized, and the switching control is completed. The change point of the PN detection SW 245 is a switch for judging that the light-shielding mask has been completely switched, and is installed offset in a direction behind the change point of the light-shielding mask.

FIG. 114 is a flow chart specifically showing the screen size switching operation described above.

First, in step S650, a screen size switching abnormality detection timer is set. In step S651,
Set the motor voltage for screen size switching. This voltage is
It can be set separately when switching from the standard state to the switching state and when switching from the switching state to the standard state. Step S652
Then, the motor reverse rotation is started and the switching operation is started. In step S653, the PN detection SW 245 receives an edge (ON → O).
Check if FF, OFF → ON) has occurred. If there is no edge, the flow advances to step S654 to check the state of the carrier PI 207 in FIG.

If this carrier PI 207 is in the ON state, the drive system mechanism is normal, and the routine proceeds to step S655.
If the carrier PI 207 is in the OFF state, it is determined that there is a mechanical abnormality, and the process proceeds to damage processing. In step S655, it is checked whether the abnormality detection timer has overflowed. Even when it overflows, it is determined that the screen size cannot be switched due to some abnormality, and the damage process is performed. If not overflowing, step S
Returning to 652, the screen size switching control is repeated.

If the PN detection SW 245 has an edge in step S653, the flow advances to step S656 to short-circuit the WZ motor 201 for a certain period of time to apply the brake. At the time of proceeding to step S657, the switching operation is still inertial. In order to minimize the overrun and stop it in a short time, the WZ motor 201 is rotated in the forward direction and a stronger brake is applied. If this is continued for a predetermined time, the switching operation is almost stopped. Further step S658
Then, the short brake is applied again, the WZ motor 201 is turned off in step S659, and the screen size switching operation ends.

In the present embodiment, the SET switch 444 (see FIG. 81) normally functions as a switch for operating the display lighting device 454, and as a switch for operating the display lighting device 454 in the blinking mode of the date display. And the function as a switch that corrects the date and time.

However, the SET switch 444 is always operated when the date / time is corrected, and it is always operated even when the display lighting device 454 is not required to be operated, which wastes the battery. Will be lost. To solve this problem, the function of the SET switch 444 is set to the date / time in the blinking mode of the date display.
It may be limited to the function of correcting the time.

As described above, according to this embodiment,
The following effects can be obtained.

1) Since the terminal electrode of the LCD 404 and the terminal electrode of the CPU 401 which controls the LCD drive on the main substrate 301 have a front and back relationship, it is not necessary to extend the pattern for a long time, and the connection can be made at the shortest distance through the through hole. It is possible. As a result, the mounting efficiency is increased and the main board area can be reduced.

2) Since the main board 301 is a hard printed board and the switch input pattern is provided on the upper surface, a support member such as a main body for supporting the board when the switch is pressed is not required on the back surface. Therefore, with such a configuration, it becomes possible to mount an element requiring a large mounting area on the back surface of the main substrate. Thereby, a small camera can be provided.

3) The shape of the light guide plate 330 is changed to the light entrance surface 330a.
Since it is configured to be thicker and the irradiation surface 330b to be thinner, it is possible to effectively reduce the loss of the light amount of the light source and suppress the height to make the lighting device thinner. This makes it possible to provide a small camera having an LCD with a bright lighting device.

4) Since there is no erroneous signal to the signal line or erroneous operation of the integrated circuit, it is possible to provide a highly reliable camera even in a harsh environment of use or continuous use.

5) Since the mounting density of the board is increased and the volume efficiency of the connecting portion is increased, a small camera can be provided.

6) By effectively utilizing the space that does not increase the volume of the camera and arranging the motor, power transmission mechanism, screen size switching mechanism, and viewfinder screen switching mechanism at the shortest distance, the power transmission mechanism can be used in the minimum space. A camera that can be realized and has a small screen size can be provided.

7) Film winding / rewinding / zooming and screen size switching are realized by using the same motor arranged in the spool and the same speed reducing mechanism arranged in the lower part of the spool chamber. Can provide a camera.

8) Since the operation member for switching the screen size is arranged on the upper surface of the camera, more specifically, at the position where the left forefinger can be operated when the camera is held, it has an electric input switch form that can be operated lightly with a short stroke. You can easily and electrically switch the screen size with a single touch while looking through the viewfinder or attaching it to a tripod.

9) Since the screen size is switched electrically, it suffices to provide an operation button on the outside to switch the screen size, and it is easy to cope with waterproofing of the camera.

10) The first detecting means for detecting the movement of the perforation for controlling the winding of one frame of film is used to detect the reference position of the data transfer start position, and the high position is detected from the reference position. By imprinting the data on the basis of the output of the second detecting means of the resolution, it is possible to provide a camera capable of imprinting the data at the correct positions on the photographing screen at equal intervals.

11) By using an operation member that does not function during normal use for lighting the display means without increasing the number of operation members, it is possible to provide an easy-to-use and inexpensive camera that suppresses the user's complication. .

12) Since the user can turn on the illumination only when needed, for a required time, it is possible to provide a camera with a long battery life that does not consume unnecessary energy.

13) Since the lighting of the display means can be manually performed when the user feels it is necessary, a camera which is easy to use can be provided.

14) In the imprinting mode in which the user confirms various shooting modes and the number of frames, the display means can be confirmed in a short time, so the illumination is automatically turned off in a short time.
It is possible to provide a camera with a long battery life that consumes no wasted energy.

15) In the correction mode in which the user corrects the imprinted data while looking at the calendar or clock, it takes time to confirm the data to be corrected, etc., so the lighting is automatically turned on for a longer time than in the imprinted mode. It is possible to provide a camera that is easy to use and has a long battery life that consumes no unnecessary energy.

16) When the user corrects various shooting modes and imprint data, the lighting time is automatically extended so that the user can confirm the correction, so the battery life is easy to use and consumes no unnecessary energy. Can provide long camera.

17) It is possible to provide a camera having a long battery life due to low energy consumption and a very convenient external display with a lighting function.

[Appendix] According to the embodiments of the present invention as described in detail above, the following configurations can be obtained. That is, (1) data imprinting means for imprinting data on a film, first detecting means for detecting the number of movements of perforations provided on the film, and a moving amount of the film higher than the first detecting means. It comprises a second detecting means for detecting with a resolution, and a control means for outputting an imprinting signal to the data imprinting means based on the outputs of the first and second detecting means. During the winding of the film, the output of the second detecting means is monitored when the output of the first detecting means has counted a predetermined value, and the second output is monitored when the output of the second detecting means reaches the predetermined value. The imprinting signal is output in synchronization with the output of the detecting means.

(2) In the above (1), the data imprinting means imprints data character by character.

(3) In the above (1) or (2),
The data imprinting means is composed of a plurality of segments of light emitting elements and a condenser lens.

(4) In the above (1), the first detecting means is a photo reflector provided at a position facing the perforation of the film.

(5) In the above (1), the second detecting means is means for detecting the amount of rotation of the rotating body which is rotated by the movement of the film.

(6) In the above item (5), the rotating body is composed of a cylindrical portion that comes into contact with the film and a polygonal column portion for detecting the amount of rotation, and the photoreflector provided at a position facing the polygonal column portion. The output detects the amount of rotation.

(7) In the above (1), a film feeding device for feeding the film is further provided, and the control means controls the feeding device based on the output of the first detecting means to feed one frame. I do.

(8) A film feeding device for feeding a film, a data imprinting means for imprinting data on the film, a first detecting means for detecting the number of movements of perforations provided on the film, Second detection means for detecting the amount of movement of the film with a resolution higher than that of the first detection means, and the film feeding device is controlled based on the output of the first detection means to feed the film by one frame. At the same time, there is provided control means for controlling the data imprinting means based on the output of the second detecting means to imprint the data on the film.

[0591]

As described above, according to the present invention,
First and second detection means having different resolutions for respectively generating a plurality of signals for the moving state of the film are provided, and when the first detection means outputs a predetermined detection signal, the second detection means has a higher resolution than the first detection means. Start monitoring the detection signal of the detection means,
Since the data imprinting device is operated in synchronization with the second detection signal after the second detection signal reaches the predetermined value, it is not necessary to increase the scale of the signal counter of the high-accuracy detection system, and the control means of the control means can be used. It is possible to provide a camera that can be simplified in structure and that is provided with a data imprinting mechanism that imprints data at precise positions at equal intervals without being affected by fluctuations in the film feeding speed. Further, first and second detection means having different resolutions for respectively generating a plurality of signals for the moving state of the film are provided, and when the first detection means outputs a predetermined detection signal, the resolution is higher than that of the first detection means. Since the monitoring of the detection signal of the second detection means is started and the data imprinting device is operated in synchronization with the second detection signal after the second detection signal reaches a predetermined value, the signal of the high precision detection system There is no need to unnecessarily increase the count range, and it is possible to provide a data imprinting method that imprints data at accurate positions at equal intervals without being affected by fluctuations in the film feeding speed.

[Brief description of drawings]

FIG. 1 is an external top view of a camera that is an embodiment of the present invention.

FIG. 2 is an external front view of the camera of the above embodiment.

FIG. 3 is a top perspective view showing the internal configuration of the camera of the above embodiment.

FIG. 4 is a front perspective view showing the internal configuration of the camera of the embodiment.

FIG. 5 shows the lens barrel of the camera of the above embodiment,
FIG. 6 is a central cross-sectional view showing the state of the focus group initial position (infinity side) at the wide-angle end.

FIG. 6 shows a lens barrel of the camera of the above embodiment,
FIG. 6 is a central cross-sectional view showing a state of a focus group extension position (closest side) at the wide-angle end.

FIG. 7 shows the lens barrel of the camera of the above embodiment,
FIG. 6 is a central cross-sectional view showing the state of the focus group initial position (infinity side) at the telephoto end.

FIG. 8 shows the lens barrel of the camera of the above embodiment,
It is a conceptual diagram which shows the movement of each lens group at the time of zooming.

FIG. 9 is an exploded perspective view of a lens barrel in the camera of the above embodiment.

FIG. 10 is an exploded perspective view of a lens barrel in the camera of the above embodiment.

FIG. 11 is an exploded perspective view of a lens barrel in the camera of the above embodiment.

FIG. 12 is an exploded perspective view of a lens barrel in the camera of the above embodiment.

FIG. 13 is an explanatory diagram showing a combined state of the middle frame, the interlocking plate, and the front frame of the lens barrel in the camera of the embodiment.

FIG. 14 is a main-portion cross-sectional view showing a coupled state of the front frame, the second lens group frame, and the interlocking plate of the lens barrel in the camera of the embodiment.

FIG. 15 is a side view showing a second lens group frame, a third lens group frame, and a focus cam ring of the lens barrel in the camera of the embodiment.

FIG. 16 is an exploded perspective view of relevant parts of the lens barrel in the camera of the above embodiment, showing a connecting portion between the focus drive unit and the barrier drive gear.

FIG. 17 is an exploded perspective view of a main part of the lens barrel in the camera of the above embodiment, showing the main part of the connecting part of the focus drive unit and the barrier drive gear from another angle.

FIG. 18 is an explanatory diagram showing a transmission state of the lens barrel in the camera of the above embodiment to the barrier drive system of the lens barrier drive switching mechanism.

FIG. 19 is an explanatory diagram showing a non-transmitted state of the lens barrel in the camera of the above embodiment to the barrier drive system of the lens barrier drive switching mechanism.

FIG. 20 is a view showing a closed state of the barrier in the lens barrel of the above embodiment.

FIG. 21 is a diagram showing an open state of the barrier in the lens barrel of the above embodiment.

22A and 22B are a longitudinal sectional view and a lateral sectional view showing a barrier drive ring and a barrier drive gear in the lens barrel of the above embodiment.

FIG. 23 is a development view showing an inner surface portion of a fixed frame in the lens barrel of the above embodiment.

FIG. 24 is a development view showing an inner peripheral portion of a rotary frame in the lens barrel of the embodiment.

FIG. 25 is a cross-sectional view of the lens frame flexible printed circuit board, the FPC guide and its peripheral portion in the wide, standard and tele states of the lens barrel of the embodiment.

FIG. 26 is a perspective view of essential parts showing a lens frame flexible printed circuit board and an FPC guide in the lens barrel of the above embodiment.

FIG. 27 is a conceptual diagram of a flexible printed board that connects the main parts of the drive circuit in the lens barrel of the above embodiment.

FIG. 28 is an exploded perspective view of essential parts showing the configuration of the shutter mechanism of the above embodiment.

FIG. 29 is an explanatory diagram showing a state when the shutter is closed in the shutter mechanism of the above embodiment.

FIG. 30 is an explanatory diagram showing a state when the shutter is opened in the shutter mechanism of the above embodiment.

FIG. 31 is a side view showing the shutter lever and the locking arm and their peripheral portions in the shutter mechanism of the above embodiment.

32 is a side view showing the locking arm and the shutter lever viewed from the direction of arrow A in FIG. 31. FIG.

FIG. 33 is a side sectional view showing the elastic arm portion and its peripheral portion in the above embodiment.

FIG. 34 is an explanatory diagram showing a state when the height of the bent portion of the elastic arm portion in the above embodiment is changed.

FIG. 35 is a diagram showing an opening waveform in the shutter mechanism of the above embodiment.

FIG. 36 is a diagram showing an example of one-opening waveform in a conventional shutter mechanism.

FIG. 37 is a schematic configuration diagram showing a main part of the camera of the embodiment.

FIG. 38 is a perspective view showing a main part of the camera of the embodiment.

FIG. 39 is a plan view showing a main gear train when a zooming operation is possible in the camera of the embodiment.

FIG. 40 is a plan view showing a main gear train when the film winding operation is possible in the camera of the embodiment.

FIG. 41 is a plan view showing a main gear train when the film rewinding operation is possible in the camera of the embodiment.

FIG. 42 is a plan view showing a main gear train when a shooting screen size switching operation is possible in the camera of the above embodiment.

FIG. 43 is a perspective view showing the entire panorama switching mechanism in the camera of the embodiment.

FIG. 44 is a plan view showing the positional relationship between the cam gear 222 and the arm 240a of the first panoramic gear 240 in the case of the standard screen size in the camera of the above embodiment.

FIG. 45 is a plan view showing a state at the moment when the arm portion 240a of the first panoramic gear 240 turns toward the center of the cam gear 222 in the camera of the above embodiment.

[FIG. 46] FIG.
FIG. 6 is a plan view showing a state where the cam gear 222 is slightly rotated from the state shown in FIG.

47 is a plan view showing a state in which the arm portion 240a of the first panoramic gear 240 is rotated in the direction away from the center of the cam gear 222 by the first cam 222a of the cam gear 222 in the camera of the above embodiment. FIG. Is.

FIG. 48 is a front view of the main parts of the panorama switching mechanism in the state where the wide shooting screen size is selected in the camera of the above embodiment.

FIG. 49 is a front view of relevant parts showing the panorama switching mechanism in the state where the narrow shooting screen size is selected in the camera of the embodiment.

FIG. 50 is a side view of the essential parts showing the panorama switching mechanism in the state where the wide shooting screen size is selected in the camera of the above embodiment.

FIG. 51 is a side view of essential parts showing the panorama switching mechanism in the state where the narrow shooting screen size is selected in the camera of the embodiment.

52 is a side view of the essential parts of the camera of the above embodiment, showing the panorama switching mechanism in a state in which a wide photographic screen size is selected, as viewed from the opposite direction to FIG. 50. FIG.

FIG. 53 is a side view of a main part of the camera of the above embodiment, showing a panorama switching mechanism in a state where a narrow shooting screen size is selected, as viewed from the opposite direction to FIG. 51.

FIG. 54 is a cross-sectional view showing the main parts of the camera of the above embodiment.

FIG. 55 is an enlarged cross-sectional view of an essential part near the roller in the camera of the above embodiment.

FIG. 56 is a rear view showing the open state of the case back in the camera of the embodiment.

FIG. 57 is an enlarged perspective view of a roller in the camera of the above embodiment.

FIG. 58 is a diagram showing a timing chart for explaining imprinting of data and an example of imprinted characters when the detection resolution is precise in the camera of the embodiment.

FIG. 59 is a diagram showing a timing chart for explaining imprinting of data and an example of imprinted characters when the detection resolution is coarse in the camera of the above-described embodiment.

FIG. 60 is an exploded perspective view of the finder unit, the exterior panel, and the rotary frame of the above embodiment.

FIG. 61 is an exploded perspective view showing a configuration of a finder optical system in the finder unit of the above embodiment.

FIG. 62 is an exploded perspective view showing a state where the finder optical system of the above embodiment is partially assembled.

FIG. 63 is a plan view showing an engagement state of the cam member, the first variable power lens and the second variable power lens in the telephoto state of the embodiment.

FIG. 64 is a plan view showing an engagement state of the cam member, the first variable power lens, and the second variable power lens in the wide-angle state of the embodiment.

FIG. 65 is a sectional view showing a first example of a configuration for improving the positional accuracy of the finder optical system having the zoom function of the above embodiment.

FIG. 66 is a perspective view of a configuration related to panorama switching in the finder unit according to the above embodiment, as seen from the rear side of the camera.

67 is a plan sectional view showing a case where the finder is in the panoramic state in the configuration related to panorama switching of the finder unit of the above embodiment. FIG.

FIG. 68 is a plan sectional view showing a case where the finder is in a normal screen state in the configuration related to the panorama switching of the finder unit of the above embodiment.

69 is a plan sectional view showing a case where the finder is in a panoramic state in the configuration related to panorama switching of the finder unit of the above embodiment. FIG.

70 is a view showing the eyepiece variable magnification lens frame shown in FIG. 68 as viewed in the direction of arrow J, and also showing the view mask portion of the finder in cross section.

71 is a front view of the camera body in a normal state showing the interlocking of the panoramic mechanism that regulates the photographic screen aperture and the eyepiece variable magnification lens of the finder unit of the above embodiment. FIG.

72 is a partial front view of the camera main body in a panoramic state, showing how the panorama mechanism that regulates the shooting screen aperture and the eyepiece variable magnification lens of the finder unit according to the above embodiment are interlocked. FIG.

FIG. 73 is a cross-sectional view showing the configuration of the photometric optical system of the camera of the above embodiment.

FIG. 74 is a perspective view showing a mounted state of electric components in the camera of the embodiment.

FIG. 75 is a perspective view showing a mounted state of electric components in the camera of the embodiment.

FIG. 76 is a cross-sectional view of a connecting portion when the main board and each flexible printed board in the camera of the above embodiment are fastened with a tightening tool.

77 is a top view showing in detail the main substrate of the camera of the embodiment. FIG.

FIG. 78 is a transparent top view showing the main substrate of the camera of the above embodiment as seen through from the upper surface.

FIG. 79 is a cross-sectional view showing a display illumination device and its peripheral portion in the camera of the embodiment.

FIG. 80 is an enlarged view of a main part showing a light entering part of the light guide plate for entering the light source light of the display lighting device in the camera of the embodiment.

81 is an electric circuit diagram showing the electric configuration of the camera of the embodiment. FIG.

FIG. 82 is a flowchart showing a release processing algorithm by operating a 1st release switch (1RSW) and a 2nd release switch (2RSW) in the camera of the above embodiment.

FIG. 83 is a CPU 40 in the camera of the above embodiment.
3 is a flowchart showing the operation of No. 1.

FIG. 84 is a CPU 40 in the camera of the above embodiment.
3 is a flowchart showing the operation of No. 1.

FIG. 85 is a zoom-up function of the camera of the embodiment.
7 is a flowchart showing a subroutine of a processing program.

FIG. 86 is a flowchart showing a Z → W switching operation (switching the mechanical drive system from the zoom drive system to the film feeding system) in the camera of the above embodiment.

87 is a flowchart showing a zoom-up operation in the camera of the above embodiment. FIG.

88 is a flowchart shown in FIG. 87.
It is explanatory drawing which showed simply about zoom PI213, zoom PR139, ZMPLS, and an actual zoom position (collapse, WIDE, TELE).

89 is a flowchart showing a zoom-down operation in the camera of the above embodiment. FIG.

90 is a flowchart showing the process shown in FIG. 89.
It is explanatory drawing which showed simply about zoom PI213, zoom PR139, ZMPLS, and an actual zoom position (collapse, WIDE, TELE).

FIG. 91 is a flowchart showing autofocus calculation processing in the camera of the above embodiment.

92 is a flowchart showing an exposure process in the camera of the above embodiment. FIG.

[Fig. 93] Fig. 93 is a developed diagram showing movements of the AF motor, the focus PI, and the taking lens when the taking lens is extended in the camera of the above embodiment.

[Fig. 94] Fig. 94 is a developed diagram showing movements of the AF motor, the focus PI, and the taking lens when the taking lens is reset in the camera of the above embodiment.

FIG. 95 is a development view showing the auto-focus lens extension mechanism in the camera of the above embodiment.

FIG. 96 is a flowchart showing an extension operation and a reset operation of the autofocus lens in the camera of the above embodiment.

97 is a diagram showing a process of decelerating the taking lens in the camera of the embodiment by a moving amount and a moving speed. FIG.

FIG. 98 is a time chart showing the output pulse waveform of the focus PI and the ON / OFF state of the AF motor in the camera of the above embodiment.

FIG. 99 is a time chart showing the output pulse waveform of the focus PI and the ON / OFF state of the AF motor in the camera of the above embodiment.

FIG. 100 is a flowchart showing a winding operation in the camera of the above embodiment.

101 is a flowchart showing a date imprinting operation in the camera of the above embodiment. FIG.

FIG. 102 is a flowchart showing an imprinting operation in the camera of the above embodiment.

103 is a front view showing an example of date imprinting on the camera of the embodiment. FIG.

FIG. 104 is a flowchart showing a rewinding operation in the camera of the above embodiment.

FIG. 105 is a timing chart showing a communication method between the CPU and the DT-CPU in the camera of the above embodiment.

FIG. 106 is a diagram showing a display example of imprint data displayed on a display circuit (LCD) in the camera of the embodiment.

FIG. 107 is a DT-CP in the camera of the above embodiment.
6 is a flowchart showing the operation of U.

FIG. 108 is a flowchart showing a sub-routine of a copying operation in the camera of the above embodiment.

FIG. 109 is a chart showing correspondence between upper 4 bits of imprinted data and display modes in the camera of the embodiment.

FIG. 110 is a chart showing correspondence between low-order 4 bit data of imprint data and blinking mode in the camera of the embodiment.

FIG. 111 is a table showing data contents of control parameters necessary for imprinting date data in the camera of the embodiment.

FIG. 112 is a 7-segment LE displaying the value of the counter corresponding to date data in the camera of the above embodiment.
It is the figure which showed one display example of D.

FIG. 113 is a time chart showing a screen size switching operation in the camera of the embodiment.

FIG. 114 is a flowchart specifically showing a screen size switching operation in the camera of the above embodiment.

[Explanation of symbols]

1 ... Camera 2 ... Mirror frame unit 3 ... Shutter unit 4 ... Main body 4a ... Patrone chamber 4b ... Spool chamber 4c ... Shooting opening 5 ... Finder unit 6 ... Main body drive mechanism 7 ... Panorama switching mechanism 8 ... Strobe light emitting section 9 ... DX Code detection device 10 ... Built-in battery 11 ... Main capacitor 12 ... Control circuit 13 ... Film 14 ... Patrone 15 ... Viewfinder panorama switching mechanism 16 ... Display device 30 ... Release button 31 ... Zoom dial 32 ... Shooting mode button 33 ... Flash mode button 34 ... Self-timer / remote control button 35 ... Panorama button 36 ... Power button 37 ... Date mode button 38 ... Date set / illumination button 51 ... Rotating frame 52 ... Fixed frame 53 ... First lens group frame 54 ... Second lens group frame 55 ... Third lens group frame 56 ... Fourth lens group holding frame 57 ... Fourth Lens group frame 57 58 ... focus cam ring 108 ... focus motor (AF motor) 109 ... focus photo interrupter (focus P
I) 110 ... Shutter trigger photo reflector (shutter PR) 110 111 ... Shutter plunger 139 ... Zoom photo reflector (zoom PR) 150 ... Finder structure member 151 ... Fixed objective lens 155 ... Field mask 176 ... AF projection lens 177 ... AF Light receiving lens 201 ... Main body drive motor (WZ motor) 206 ... Switching plunger 207 ... Carrier photo interrupter (carrier PI) 213 ... Zoom photo interrupter (zoom PI) 217 ... Spool 245 ... Screen size detection switch (PN detection SW) 246 ... Date holder 247 ... Date lens 248 ... Light emitting LED 249 ... Film photoreflector (film PR) 260 ... Roller 261 ... Data reflection timing photoreflector (data PR) 301 ... Main substrate 302 ... Mirror frame flexible substrate (mirror frame FPC) 303 ... Main body drive flexible substrate (main body PFC) 304 ... Date flexible substrate (date FPC) 305 ... AF flexible substrate (AF-FPC) 306 ... DX flexible substrate (DX-FPC) 308 ... LCD holding frames 309, 310 ... Anisotropic conductive rubber 319 ... AF projecting flexible substrate (IR-FPC) 330 ... Light guide plate 330a ... Light entrance surface 330b ... Irradiation surface 330c ... Light guide surface 330d ... Diffuse reflection surface 331 ... Holding member 332 ... Light source 401 ... CPU 402 ... I / F-IC 403 ... Strobe charging light emitting circuit 404 ... Display circuit (LCD) 405 ... Driver driving circuit (for actuator) 426 ... DT-CPU 454 ... Display lighting device

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-3-233538 (JP, A) JP-A-63-291045 (JP, A) JP-A-63-27823 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) G03B 17/24

Claims (2)

(57) [Claims] 1. A data imprinting device for imprinting data on a film being fed, and a plurality of first imprinters for detecting movement of film perforation .
First detecting means for outputting a first detection signal, second detection means for outputting a plurality of second detection signal the movement of the film pieces were detected with a resolution higher than the first detection signal, after the film feeding start , The first detection signal is a first predetermined number
When it reaches, the monitoring of the second detection signal is started and
After the second detection signal reaches the second predetermined number, the second detection signal is detected.
Operate the data imprinting device in synchronization with the output signal
A camera comprising: a control unit . 2. Data is imprinted on the film being fed.
Data imprinting device and film perforation
First detection for detecting movement of the object and outputting a plurality of first detection signals
The moving means and the movement of the film piece are more than the first detection signal.
The first which detects with high resolution and outputs a plurality of second detection signals
(2) A method for imprinting data on a camera equipped with a detection means.
Then, after the film feeding is started, the first detection signal becomes the first
When the specified value of is reached, monitoring of the second detection signal is started.
However, after the second detection signal reaches the second predetermined value,
The data imprinting device is produced in synchronization with the second detection signal.
A data imprinting method characterized by moving.