JPH03221930A - Information setting device for camera - Google Patents

Abstract

PURPOSE:To display all the information in a selected mode by fixing a display board so that it can be attached/detached and reversely rotated on the surface of a movable member which can relatively move to a camera by interlocking with an information setting operation and displaying specified information on the surface of the movable member. CONSTITUTION:A dial main body 20 is provided on a camera outside cover 10 so that it can relatively move by interlocking with the information setting operation. The display board 30 is fixed on the surface of the dial main body 20 so that it can be attached/detached and reversely rotated. The information in the case of shutter time priority being a 1st photographing mode is displayed along the circumferential direction on the 1st surface of the display board 30, and the information in the case of aperture priority being the 2nd photographing mode is displayed along the circumferential direction on the 2nd surface. The direction of the surface of the display board 30 and the presence or absence of the display board 30 on the dial main body 20 are detected according to the position of pushing up a pin 110. Furthermore, the information in the case of aperture priority being the 2nd photographing mode is displayed along the circumferential direction on the surface of the dial main body 20. All the information in the selected mode is confirmed at a glance.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a camera information setting device for inputting and setting photographing information such as shutter speed and aperture value.

(Prior art) Conventionally, as a camera information setting device, Japanese Patent Laid-Open No. 52-6
There are some proposals such as No. 9621.

This allows Tv information and Av information to be set using the same input means, such as a rotary dial, in automatic exposure cameras that can select both shutter speed (Tv) and aperture (Av) priority modes. , a configuration in which switching display can be performed by covering two-dimensionally either the Tv information or the Av information displayed on the outer periphery and the inner periphery of the display disk, respectively, in conjunction with the switching operation of the priority mode switching means. It has become.

Information on the selected mode can be confirmed through a fan-shaped window formed in the member covering the display disk.

[Problem B to be Solved by the Invention] However, the above-mentioned conventional example has the following drawbacks.

(1) The displayed results are viewed through a fan-shaped window, and the Tv and Av information can only be seen on both sides, making it impossible to see the entire display with the naked eye, making it easy to see the upper and lower limits. do not have.

(2) Because the display is switched on a flat surface, the display space on the inner circumference of the display disk is narrower than on the outer circumference, making the display difficult to see, or to avoid this, the display can be displayed on the inside. Limited by mode.

(3) The structure is complicated because the display switching mechanism is linked to the switching operation of the mode switching means.

SUMMARY OF THE INVENTION An object of the present invention is to provide a camera information setting device that has a simple configuration and allows you to check all information for a selected mode at a glance.

[Means to solve the problem]

The present inventors are planning to develop an information setting device having the following configuration as a new information setting device that eliminates the drawbacks of conventional information setting devices. This information setting device includes a movable member that is movable relative to the camera in conjunction with an information setting operation, a first surface on which information regarding a first photographing mode is displayed, and a second photographing mode. a display board having a second surface on which information about the display board is displayed, and which can be removably and reversibly fixed to the surface of the movable member; detection means for detecting the orientation of the second surface, the presence or absence of the display board on the movable member, and detecting which of the first and second shooting modes has been selected; and further characterized in that information regarding the second photographing mode is displayed on the surface of the movable member.

[Function] The information setting device of the present invention determines in what state the camera user attaches the display board on the movable member, or
The first and second photographing modes can be realized depending on the usage condition, such as whether or not the display board is mounted on the movable member. That is, the information setting device of the present invention has a separate information display screen for each shooting mode, and unlike conventional devices, information for multiple shooting modes is not displayed on the same screen. The device makes it easy to see information, and unlike conventional devices, only specific information is viewed through a window in the cover, so the device of the present invention can display all information constituting one shooting mode. You can see it.

Furthermore, two types of photographing modes can be realized depending on the case where the display board is not mounted on the movable member and the case where the display board is mounted on the movable member. They have the same functionality.

Furthermore, even if the display board is lost, since information related to the second shooting mode is displayed on the movable member, it is possible to take photos in the second shooting mode.
Photography will never be impossible.

[Examples] Examples of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 20 denotes a dial body formed in a circular shape, and a hollow rotating shaft 23 formed on the back side rotatably fits into and penetrates the fitting hole 11 of the exterior cover 10 of the camera. And as shown in FIG. 3, it is arranged on the upper part of the camera body C.

In addition, a recessed portion 21 is formed in the upper surface of the dial body 20, so that a display plate 30 (to be described later) can be fitted thereto almost without any gaps. The display plate 30 is fixed onto the dial body 20 by screwing into the threaded portion 25 of the through hole 24 of the rotating shaft 23.

50 is a click plate provided around the fitting hole 11 on the back side of the exterior cover 10 of the camera, 60 is a click plate provided with a spring part 61 on one side, and an engaging part 62 on the other side.
A click spring is provided. click spring 60
is fixed to the shaft end 26 of the rotating shaft 23 of the dial body 20, and by rotating the dial body 20, the convex portion 61a attached to the tip of the click spring portion 61 is biased, and the circumference of the click plate 50 is Click groove 51 formed in the
When the dial body 20 is inserted into the body, a click feeling can be obtained, and the dial body 20 is prevented from coming off. The engaging portion 62 formed on the other side of the click spring 60 is used to generate an electrical signal for manually inputting the stop position of the dial body 20, that is, the setting of photographic information, to the microcomputer of the camera body. It drives the information human power section 70, 80, which will be described later.

Reference numeral 30 designates a disc-shaped display board whose thickness gradually decreases from the center toward the circumferential edge, as shown in FIG. 4(a).

As shown in (b) and (c), on one surface (hereinafter referred to as the first surface) 32, information for the first exposure mode, shutter speed priority, is displayed along the circumferential direction. ,
Also, a second display surface 33 which is the opposite surface to the first display surface 32
Information for the second exposure mode, aperture priority, is displayed along the same direction. Further, as shown in FIGS. 6 and 8, the display plate 30 is connected to the recess 21 of the dial body 20.
When the dial body 20 is fitted into the dial body, the upper surface portion 27 of the dial body 20 is formed on a curved surface that is continuous with the curved surface of the dial body 20, so that the dial body 20 and the display plate 30 have an apparently integrated spherical shape. There is.

The display board 30 also has a donut shape with an empty space in the center, and a flange portion 30a that comes into contact with the head of a screw 40 for mounting the display board is formed around the empty space. The first screw receiving surface 36 on the first display surface 32 side of the flange portion 30a and the second screw receiving surface 37 on the second display surface 33 side are located at the first peaks on the respective display surface sides. Surface portion 34
, are formed on counterbore surfaces having different depths from the second top surface 35. In this embodiment, in the state shown in FIGS. 5 and 6 in which the display plate 30 is fitted to the dial body 20 with the first display surface 32 facing upward, the recess 21 of the dial body 20 is
The second top surface 35 abuts the flat bottom 21a of the whl
In the state shown in FIGS. 7 and 8 in which the display plate 30 is fitted to the dial body 20 with the distance from the screw receiving surface 36 to the screw receiving surface 36 and the second display surface 33 is the upper surface, the recess of the dial body 20 The first portion abuts against the flat bottom portion 21a of the portion 21.
The distance between the first top surface 34 and the second screw receiving surface 37 is ℃2
Then 1. I21〉℃2.

Therefore, in order for the camera user to select the first exposure mode, the first display surface 3 as shown in FIGS.
Attach the display plate 30 to the dial body 20 with the display plate 2 facing upward and screw the screw 40 to the predetermined tightened position. ), and to select the second exposure mode, attach the display plate 30 to the dial body 20 with the second display surface 33 facing upward as shown in FIGS. The tip position of the tip 41 of the screw 40 (hereinafter referred to as the second pushed-in position) is the installation position when the screw 40 is screwed in to the predetermined tightened position.
differs in the axial direction with respect to the rotating shaft 23 of the dial body 20, and the first pushed-in position is located above the second pushed-in position. In the apparatus of the present invention, this position difference is utilized to obtain an electrical switching signal between the first exposure mode and the second exposure mode. Note that this signal switching mechanism will be described later.

Furthermore, if the display board 30 is rotated relative to the dial body 20 while the display board 30 is attached to the dial body 20, proper settings cannot be made, so in this embodiment, a notch a1 is formed in the display board 3o. At the same time, the display board 30
A positioning protrusion 22 into which the notch 31 fits is formed on the inner circumference of the recess 21 into which the notch 31 fits.

On the other hand, in the device of the present invention, as shown in FIG. 1(b) and FIG. In the state shown in FIGS. 2 and 3 where the display board 30 is not mounted, the information setting device is set to the second exposure mode (aperture priority mode).

In the device of the present invention, only one exposure mode information is separately displayed on each side of the display board 30 and on each side of the dial body 20, so that when shooting in each mode, other exposure mode information is displayed separately. There is no risk of reading the information by mistake, and all the information for one exposure mode can be viewed.

Therefore, if the camera user selects the first exposure mode that prioritizes the shutter speed as shown in FIGS. 5 and 6, and as shown in FIGS. If you select the second aperture-priority exposure mode shown in , all information such as setting values for each mode will be displayed without being obscured, and the camera body C. By rotating the dial body 20 provided at the upper end and aligning the value displayed on the display board 30 with the index A provided on the camera body C, the shooting conditions are set at that value. . As shown in FIG. 1 (1)) and FIG. In order from 31 to the counterclockwise position,
Self-timer displays 47, 39 and 53 indicating self-timer mode; battery check displays 46, 38 and 52 indicating camera battery check;
Further, program mode displays 48, 42, and 54 for displaying program shooting are provided at adjacent positions clockwise from the notch 31. Further, the notch 31 is set at a lock position, and for this purpose, a lock position indication 122a is provided on the positioning convex portion 22 of the dial body 20 into which the notch 31 fits.

Display board 30 (7) In addition to the above-mentioned common displays, the first display surface 32 also displays B, 4 (1/4), 8 (1
/8) 15 (1/15), 30 (1/30),
60 (1/60), 125 (1/125),
250 (1/250>, 500 (11500)
)1000 (1/1000), 2000 (1/
There are a total of 15 displays including the 2 (100) display, and the click grooves 51 of the click board 50 are formed correspondingly so that the clicks will be applied at the positions where these display parts correspond to the index A described above. ing.

In addition, the second display surface 33 of the display board 30 and the dial body 2
On the 0 surface, information corresponding to each of the above information is displayed at the same position as the first surface.

In other words, the aperture value (1, 0, 1, 4, 2, 0° 2.84
．． 05.68.0, 11.0, 16.0.22.0, 3
2.0) is displayed, and a click is applied to the dial body 20 when each display position matches the finger sA.

2. On the other hand, when operating the battery check on the dial body 20, rotate the battery check displays 46, 38, and 52 clockwise from the position where the self-timer displays 47, 39, and 53 are aligned with finger W4A to the position where finger mA is. When released from the dial body 20, the dial body 20
The automatic return spring mechanism shown in FIG. 9 (1') allows the battery check to be canceled without returning to the self-timer display position. When setting the battery check position, a buzzer is used to issue a battery check warning, as will be described later.

Figures 9(a) and 9(b) show the automatic return spring mechanism.

Reference numeral 500 denotes an automatic return spring, which is formed by deforming a plate spring into a circular shape. One end 511 fixed to the camera body C is a fixed end, and the other end of the L-shaped end is a flexible end 512. It is held in contact with a spring stopper 513 provided on the camera body C, as shown in FIG. 9(a), so that elastic force is always applied counterclockwise.

On the other hand, the dial body 20 has a dial stopper 514.
is provided, and when the dial body passes through the self-timer position where the dial body is rotated 2 degrees clockwise, the dial stopper 514 engages with the movable end 512 of the automatic return spring 500, and when it rotates further, the automatic return spring 514 begins to deform and returns. Power is accumulated. Then, when the dial main body 20 is rotated to the battery check position and the finger is removed from the dial main body at that position, the dial main body 20 is rotated counterclockwise by the return force of the automatic return spring 514, and the battery check is released and the self- It will return to the timer position.

In this embodiment, when switching the exposure mode, it is necessary to remove the screw 40 for installation, and for reinstallation, when screwing the screw 40 into the dial body 20, the screw 40 must be removed.
In order to prevent excessive tightening of the zero, a spring is used to automatically return the battery check display to the self-timer display position.

In other words, the installation is done by tightening the screw 40 with a right-handed screw with a clockwise direction, and after setting the display plate 30 at a predetermined position on the dial body 20, the installation is done by tightening the screw 40 and going forward. During tightening, the dial body 20 rotates clockwise due to the force. By setting the spring force of the automatic return spring to a certain degree of urging force, the screw 40 is tightened against the urging force of the automatic return spring, so that the screw 40 is tightened to the battery check position. When this happens, it is sufficiently tightened and a battery check can be performed at the same time.

Further, in this embodiment, when the display plate 30 is attached to the recess 21 of the dial body 20, the bottom 21a of the recess 21 is
By making the display panel 30 a flat surface and a spherical shape, a space 21b is provided between the outer peripheral side of the bottom portion 21a and the lower display surface of the display panel 30. As shown in the figure, after removing the screw 40, press the display plate 30 downward with your finger on the opposite side of the positioning convex part 522, and the first
As shown in Figure 1, the pressed display board 30 is in the empty space 2.
The display board 30 on the positioning convex portion 22 side sinks into To.
The display board 30 can be easily taken out by picking it up, and even if the display board 30 is attached to the recessed part 21 of the dial body 20 so that it appears to be integrated with the dial body 20, the exposure mode cannot be changed. The operation of reversing the display board for switching becomes easy.

Note that the display board 30 has a planar shape, and the bottom 21 of the recess 21
Even if a is made into a convex spherical shape, the display board 30 can be easily taken out in the same way.

Next, a signal indicating which exposure mode has been selected out of the first exposure mode and the second exposure mode and a selected mode detection signal generating means are generated, and the selection mode detection signal generating means is activated to select the exposure mode from the stop position of the dial 20. FIG. 3 and FIG. This will be explained with reference to FIG.

In FIGS. 3, 6, and 8, 90 is a dial base plate fixed to the camera body C, and the above-mentioned installation is such that a hollow shaft 100 is penetrated and fixed coaxially with the screw 40, and the hollow shaft 100 is fixed on the top surface. A phase detection plate 80 is fixed concentrically with the axis of the shaft 100. A pattern section 81 is provided on the surface of the phase detection plate 80 to generate an electrical photographing information signal connected to a control microcomputer of the camera body. , 70 is a hollow shaft ioo facing the pattern portion 81.
A brush 72 serving as a conductive piece that contacts the pattern portion 81 is fixed to the lower surface of the cutting seat rotatably attached to the cutting plate. It is pressed and biased towards 8 degrees. Further, an engagement pin 71 is provided protrudingly on the upper surface side of the section seat 70, and is engaged with an engagement portion 62 formed at the other end of the click spring 60, and is engaged with the engagement portion 62 formed on the other end of the click spring 60.
The section seat 70 is rotated together with the 0 rotation.

On the other hand, a GND piece 101 is fixed to the lower end of the hollow shaft 100 on the back side of the dial base plate 90, and the ground piece 101 can be contacted with the GND piece 101 on the back side of the dial base plate 9o, and the tip end is connected to the hollow shaft 100. A changeover switch movable piece 120 having spring properties extending to the hole position is provided, and the changeover switch movable piece 120 and the GND cutter 101 are used to determine whether to obtain a switching signal between the first exposure mode and the second exposure mode. It constitutes a closed mode selector switch. The on/off switching of this mode changeover switch is performed by a changeover pin 110 inserted through the hollow shaft portion of the hollow shaft 100 from below so as to be movable in the axial direction. The lower end head 110a of the switching bottle 110 is always in contact with the tip of the switching switch movable piece 120, and the switch movable piece 120 is connected to the GND section 1 by the spring force.
It can be pushed up to a position where it makes contact with 01. At that time, the tip of the switching bin 110 is connected to the dial body 2.
0 (hereinafter referred to as the push-up position), and when the switching bin 110 is pushed down against the spring force of the switch movable piece 120, the mode switching switch is activated. Turn off.

In this embodiment, the switching bin 11.0 is attached to the display plate 30 using screws 40, and as described above, the switching bin 11.0 is attached to the display plate 30 on the first display surface 32 of the display plate 30.
In the case of the first exposure mode in which the display is directed upward, as shown in FIG. In the case of the second exposure mode in which the second display surface 33 of the plate 3o faces upward, as shown in FIG. The position is lower than that.

Therefore, in the case of the first exposure mode (i.e., shutter speed priority), the switching bin 110 is not pushed down by the screw 40, so the mode switching switch is in the closed state, and the mode switching switch is in the closed state. In the case of the second exposure mode (i.e., aperture priority), the switching bin 110 is pushed down and the mode selection switch is opened. state, and inputs an OFF signal indicating the second exposure mode to the microcomputer.

When setting the first exposure mode, which gives priority to the shutter speed, the switching bin 110 is not pushed down by the screw 40 and the mode switching switch is in the open state, so the installation is done by screwing in the screw 40. Even when the exposure mode is not open, the mode changeover switch outputs an on signal indicating the first exposure mode, which is in the open state.

Next, the camera control circuit connected to the information setting device of the present invention, the input from the information setting device, and the operation of the camera control circuit will be described with reference to FIGS. 12 to 15.

In FIG. 12, 201 is the microcomputer 0 computer, 202 is a pull-up resistor, and 203 is the G
This is a mode changeover switch composed of an ND contact piece 101 and a switch movable piece 120.

The signal from the switch 203 is connected to the input port P1 of the microcomputer 201. When the switch 203 is on, a low signal is input to the microcomputer 201, and when it is off, a high signal is input to the microcomputer 201. By reading, it is determined which of the first and second exposure modes has been selected by the camera user.

Reference numeral 80 denotes a phase detection plate that detects the stop position of the dial 20 by means of a contact piece 72 that rotates in conjunction with the rotation of the dial 20, and a 4-bit position signal corresponding to the stop position of the dial 20 is sent to the input port of the microcomputer 201. P3
．． P4゜P5. It is input to P6. 208,20921
0.211 is a pull-up resistor for detection,
P3. P4. P5. When the brush connected to each input port of P6 is touching a conductive part of the phase detection plate 80, a low signal is input to each input port, and when it is touching a non-conductive part, a high signal is input manually.

FIG. 15 shows P3P4 when priority values are selected for shutter priority and aperture priority. P5. It shows the input state of signals to each input port of P6, where "0" in the figure means a low level input signal, and "1" means a high level human input signal.

In FIG. 15, P3. P4. P5. When all the input ports of P6 are low signal inputs, the voltage of a power supply (not shown) is checked in both shutter priority and aperture priority, and a warning sound corresponding to the voltage is emitted. In FIG. 12, reference numeral 246 denotes a sounding body for emitting a warning sound, which is connected to the output port P18 of the microcomputer 201 and is WB operated by the microcomputer 201.

In FIG. 15, human capo-1-P3, P4P5. If the input state of P6 is ro, 0, 0, 1j,
The self-timer's operating mode changes both in shutter priority and aperture priority.

Similarly, in FIG. 15, input capo-1-P3.

P4. P5. When the input state of P6 is "ro, 0.10", the release operation is prohibited in both shutter priority mode and aperture priority mode, and the release operation is not performed even if the release button is pressed.

Also, input port P3. P4. P5. The manpower status of P6 is r
o, 0, 1. When set to IJ, neither shutter priority nor aperture priority is performed, and the shutter speed and aperture value change simultaneously due to changes in brightness to obtain the correct exposure. obtain. Switches to program automatic exposure mode. An example of the relationship between the shutter speed and aperture value in automatic exposure mode at this time is shown in the 14th section.
As shown in the figure.

In other cases, priority setting values are determined according to FIG. 15 for both shutter priority and aperture priority.

For example, when shutter priority is selected, input port P
3. P4. P5. The input state of P6 is ro, 1,0,
0'', 172000 seconds is set as the priority time. Similarly, with aperture priority selected, input port P3. P4. P5. If the input state of P6 is “1°0.1.IJ”, F2.8
will be set as the priority aperture value.

In FIG. 12, 212 is a switch linked to the release button, which is turned on by pressing the release button of the camera. The switch 212 provides input to the input port P7 of the microcomputer 201, so that the microcomputer 201 can read the state of the release button.

239 is a silicon photodiode for photometry. An AD converter 240 performs AD conversion on the photometric value output from the silicon photodiode 2394, and transmits the photometric information to the microcomputer 201 via the path line 241.

242 and 243 are resistors for dividing the voltage of the power supply battery. 244 is an AD converter for AD converting the divided voltage, and transmits voltage information to the microcomputer 201 via a pass line 245.

214 is a motor (Ml) for driving the opening and closing of the aperture 223 of the photographing lens.

215.216 is PNPI-transistor, 217218
is an NPNI-transistor.

The collectors of PNP transistors 215 and 216 are connected to both ends of motor M1, and the collectors of NPNI transistors 217 and 218 are also connected to both ends of motor M1. Also, PNPI-transistor 215
, 216 are both connected to the + side of a power supply (not shown), and the emitters of the NPNI transistors 217, 218 are both connected to one side of a power supply (not shown).

The bases of PNP transistors 215 and 216 are connected to the microcomputer 20 through resistors 219 and 220, respectively.
1 output port Pa, connected to P9.

The bases of the NPN transistors 217 and 218 are connected to the output port P10pH of the microcomputer 1 through resistors 221 and 222, respectively.

With the above configuration, the forward and reverse rotation of the motor M1 can be arbitrarily controlled by the microcomputer 201.

224 rotates normally to feed photographic film (not shown);
This motor (M2) is used to raise and lower the main mirror and charge the shutter spring in reverse rotation.

225.226 is PNPI-->NGISTA, 22722
8 is an NPN transistor.

The collectors of the PNPI transistors 225 and 226 are respectively connected to both ends of the motor M2, and the collectors of the NPNI transistors 227 and 228 are also respectively connected to both ends of the motor M2. Also, PNPI-ransistor 225
. P
The bases of the NPt transistors 225 and 226 are connected to the output ports P12. of the microcomputer 201 via base resistors 229 and 230, respectively. Connected to P13.

The bases of the NPNI transistors 227 and 228 are connected to output ports P14P15 of the microcomputer 201 via resistors 231 and 232, respectively.

With this configuration, the forward and reverse rotation of the motor M2 can be arbitrarily controlled by the microcomputer 201.

Reference numeral 233 denotes a magnet for unlocking the running of the front curtain of the shutter (not shown), and 234 denotes a magnet for releasing the lock of running of the rear curtain of the shutter (not shown).

The magnet 233 is connected to the collector of the NPN transistor 235, and the magnet 234 is connected to the collector of the NPN transistor 235.
It is connected to the collector of transistor 236.

The bases of the NPNI transistors 235 and 236 are connected to the output port P16P17 of the microcomputer 201 via base resistors 237 and 238, respectively.

With this configuration, the microcomputer 201 can arbitrarily control the front and rear curtains of the shutter.

Next, the operation of the control circuit configured as described above will be explained according to the operation flowchart of the microcomputer 201 in FIG. 13.

When the battery is inserted into the camera, the microcomputer 2
01 starts operation from step 1 of flowchart 1 in FIG.

[Step 1 car boat P3. P4. Reads the input signal of P5P6 and prohibits release operation 8 states, ie ro, 0, 1. Determine whether or not the state is OJ. If the release is prohibited, the process does not proceed to the following steps and returns to step 1. If the release is not prohibited, the process moves to step 2.

[Step 2] Person Kabot P3. P4. The input signal of P5P6 is similarly read to determine whether or not to check the power supply voltage, that is, whether it is in the state of "00, O, J."

If you want to check the power supply voltage, go to step 19.
If not, proceed to step 3.

[Step 19] Communication is performed with the AD converter 244 via the pass line 245, the power supply voltage is checked, and the output capacitors 1-PI3 are driven based on the result. When the power supply voltage is sufficient, the sounding body sounds at a fast frequency such as 8H2, and when the voltage is low, the sounding body sounds at a slow frequency such as 2Hz.

[Step 3] Switch 21 linked to the release button
2 is read from boat P7. If the input signal of boat P7 is low level, the release button is pressed in, so step 4 is performed to start the release operation.
Move to. If the input signal of baud 1-P7 is at a high level, the process returns to step 1 and the processes from step 1 to step 3 described above are repeated until the release button is pressed.

[Step 4] AD converter 2 via pass line 241
40 and manually input photometric information.

[Step 5] Switch 3 to determine whether the dial is set to shutter priority or aperture priority
The state of is read from boat P1. If the input signal of boat P1 is low level, the dial is set to the shutter priority side, so the process branches to step 6 to perform shutter priority calculation processing, and if the input signal of boat P1 is high level, the dial is set to the aperture priority side. Step 8
Branch to.

[Step 6] Enter capo-1-P3. P4. The shutter priority value is determined from the input signals of P5P6 according to FIG.

[Step 7] Based on the input photometric information and shutter priority value, an aperture value for proper exposure is calculated.

However, in the program automatic exposure mode, the shutter speed and aperture value are determined according to the program diagram shown in FIG. After that, the process moves to step 10.

[Step 8] Even if the dial is set to the aperture priority side, the manual boat P3. P4. The aperture priority value is determined from the input signals of P5P6 according to FIG.

[Step 9] Based on the input photometric information and aperture priority value, the shutter time required for proper exposure is calculated. However, similarly to the shutter priority mode, in the program automatic exposure mode, the shutter speed and aperture value are determined according to the program diagram shown in FIG. After that, the process moves to step 10.

[Step 10] If the self-timer is in one operation mode, wait for 10 seconds to elapse. If it is not the self-timer operation mode, the process immediately moves to step 11.

[Step 11] Output a low level signal from the output port P12 and turn on the PNPI transistor 225. Further, a high level signal is output from the output capacitor 1-P 13 to turn off the PNP transistor 226. In addition, a low level signal is output from output capo-1-P14, and N
Turn off the PN transistor 227. Also output boat P
15 outputs a high level signal to turn on the NPN transistor 228. As a result, current flows through the motor M2 from left to right, causing the motor M2 to rotate in reverse. This flips up the camera's main mirror, making it ready for shooting.

[Step 12] Output a high level signal from the output port P8 to turn off the PNP I-transistor 215. Also, a low level signal is output from the output port P9 to turn on the PNP transistor 216. Also out capo
1-P Outputs a high level signal from 10, and outputs a high level signal from NPNI
-Turn on transistor 217. Also, Dekapo-1-P
A row 1 novel signal is output from 11, and the NPN transistor 218 is turned off.

As a result, current flows through the motor M1 from right to left, and the motor M1 rotates in the normal direction. As a result, the aperture of the camera is driven in the direction of narrowing down the aperture. When the position has been narrowed down to a predetermined position, the output boat P8. P9. P10. All of Pi 1 are set to high level to stop motor M1.

[Step 13] Output a high level signal from the output capo-1-P 16 for 10a seconds. As a result, the running of the shutter front curtain is unlocked and the shutter front curtain starts running.

[Step 14] Wait for the shutter opening time to end.

In the case of shutter priority, this time is a priority setting value, and in the case of aperture priority, it is a shutter time obtained as a calculation result for obtaining appropriate exposure for the set aperture value. However, in the case of bulb photography with shutter priority, Step 14 remains until the release button on the camera side is released, and after the release button is released, the process moves to Step 15. As described above, the operation of the release button can be determined from the input signal of the input boat P1.

[Step 15] A high level signal is output from the output boat P17 for 10 tν seconds. As a result, the running of the shutter rear curtain is unlocked and the shutter rear curtain starts running.

[Step 16] Output a low level signal from the output port P12 and turn on the PNP transistor 225.

In addition, a high level signal is output from the output boat P13,
Turn off PNP transistor 226. Also, a low level signal is output from the output port P14 to turn off the NPN transistor 227. In addition, a high level signal is output from the output port P15, and the NPN) transistor 22
Turn on 8.

As a result, current flows from left to right in motor M2,
Reverse motor M2.

As a result, the main mirror of the camera goes from being lifted up to being lowered while simultaneously charging the shutter springs of both the front and rear curtains.

[Step 17] A low level signal is output from the output port P8 to turn on the PNP transistor 215. In addition, a high 1 novel signal is output from output boat P9, and P
N P l-Turn off transistor 216. In addition, a low level signal is output from the output port PIO, and the NPNI-
Turn off transistor 217. Also, a high 1 novel signal is output from the output boat pH, and the NPN transistor 218 is turned on.

As a result, current flows through the motor M1 from left to right, causing the motor M1 to rotate in reverse.

As a result, the aperture of the camera becomes open.

[Step 18] Output a high level signal from the output port P12 and turn off the PNPI transistor 225. Further, a low level 5 signal is output from the output port P13, and the PNP transistor 226 is turned on. Also, a high level signal is output from the output port P14 to turn on the NPN transistor 227. In addition, a low level signal is output from the output port P15, and the NP
Turn off N transistor 228.

As a result, current flows through the motor M2 from right to left, causing the motor M1 to reverse. As a result, one frame of exposed photographic film is fed, and the series of release operations is completed. After this, the process returns to step 1 and the above-described operations are repeated.

(Effects of the Invention) As explained above, according to the present invention, all information in the selected mode is displayed on the display board attached to the rotary dial, and the photographer can check all the information at a glance. You can also see all the information at a glance by flipping the display in other modes.

In addition, since only information for one mode is displayed on one side of the display board, similar to a single mode dial, it is easy to see, and moreover, sufficient display space can be secured, allowing for a clean design.

Furthermore, even if the display plate 30 is lost, the second exposure mode information displayed on the dial body 20 will allow you to take pictures in the second exposure mode at least. Therefore, there is no problem even if the display board is lost.

That is, according to the information setting device of the present invention, it is possible to select two shooting modes while displaying the same display as a single mode information setting device, and moreover, the information display can be viewed through a window such as a mask or cover. Since the structure is not adopted in one mode, all information regarding one mode can be viewed.

[Brief explanation of drawings]

FIG. 1(a) is an exploded perspective view of the information setting device of the present invention, and FIG. 1(b) is an enlarged plan view of the dial body 20 which is a component of the device shown in FIG. 1(a). Figure 2 shows the display board 30.
FIG. 3 is a top view of the camera when used in the second exposure mode with the display board 30 removed; FIG. 4(a) is a sectional view of the information setting device when used with the display board 30 removed;
(b) and (c) are diagrams showing the front and back surfaces and cross-sectional shape of the display board 30, and FIG. 6 is a cross-sectional view of the information setting device shown in FIG. 5, and FIG. A top view of the camera when attempting to take a picture in the second exposure mode with the display board 30 mounted with its surface 33 facing upward;
FIG. 8 is a sectional view of the information setting device in the state shown in FIG. 7;
Figures (a) and (b) show the dial body 2 of the information setting device.
10 and 11 are the k-th diagrams and 12th diagrams illustrating the operation for removing the display plate 30 from the dial body 20 and the reversing operation of the display plate. 13 is a circuit diagram showing a camera control circuit etc. electrically connected to the information setting device, FIG. 13 is a flowchart of a program executed in the camera control circuit, and FIG.
Figure 4 is a diagram for determining the exposure value during programmed automatic exposure, and Figure 15 is a diagram showing the output of the information setting device (input to the camera control circuit) and information included in the first and second exposure modes. FIG. 10...Camera exterior cover 20...Dial body 3
0... Display board 40... Installation is done with screws 50.
...Click plate e o-...Click spring 70...Slice film 80...Phase detection board 90...Dial base plate 100...Hollow shaft 110...Switching pin 120...Switch movable piece, etc. 4 people (0) Figure (C) (b) Figure 9 (a) Figure (b) JP-A-3 221930 (16)

Claims (1)

[Claims] 1 A movable member provided to be movable relative to the camera in conjunction with an information setting operation, a first surface on which information regarding the first photographing mode is displayed, and information regarding the second photographing mode is displayed. a display board having a second surface that is fixed to the surface of the movable member in a removable and reversible manner; a detection means for detecting the orientation and the presence or absence of the display board on the movable member to detect which of the first and second shooting modes has been selected; An information setting device for a camera, characterized in that information regarding the second shooting mode is displayed on the surface of the movable member.