JP2010181553A - Stroboscopic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stroboscopic device which enables stable operation of a zoom function even when a light emitter which is freely turned around a stroboscopic body by a bounce function is very compact. <P>SOLUTION: The stroboscopic device has the bounce function of turning the light emitter 4 around the stroboscopic body 1, and the zoom function of changing an irradiation angle by rectilinearly moving a Fresnel panel 5 held by a second light emitter housing 7 constituting the light emitter 4. The light emitter 4 has a protrusion 6a at which a turning shaft 61 for the bounce function is arranged. The protrusion 6a is adjacent to a main capacitor 38 in the stroboscopic body 1 so as to get into the stroboscopic body 1. A slide mechanism for rectilinearly displacing the second light emitter housing 7 relative to a first light emitter housing 6 is arranged in a range leading to a void near the main capacitor 38 in the stroboscopic body 1 astride the turning shaft 61 arranged at the protrusion 6a from an edge of the light emitter 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a strobe device having a bounce function and a zoom function.

  Conventionally, in a strobe device having a zoom function that makes an irradiation angle variable, for example, as shown in Patent Document 1, the Fresnel panel is moved back and forth, and the relative distance between the reflector and the Fresnel panel containing the flash tube is set. A method is known in which the irradiation angle is changed by changing the irradiation angle.

  In this method, the auto-zoom method that drives the internal flash tube and reflector using an electric motor has become less common in recent years. Is an effective means.

  Further, as a strobe device having a so-called bounce function that makes the irradiation direction variable and uses reflected light from the ceiling or the like, for example, the one disclosed in Patent Document 2 is known. In Patent Document 2, although not clearly illustrated, it is possible to rotate the light emitting unit around the rotation axis in order to turn the light emitting unit (light emitting unit) upward.

Japanese Patent Publication No. 63-3296 Japanese Utility Model Publication No. 61-41076

  However, the conventional strobe device has the following problems. In the strobe device described in Patent Document 1, the light emission irradiation angle variable hood that moves back and forth is configured to cover a light emitting portion having a relatively long length in the moving direction. As described above, it has been desired that a mechanism with linear movement has a form extending as long as possible in the moving direction as much as possible so as not to impair operability due to an inclination during movement.

  Patent Document 2 discloses a very small strobe device. The light emitting unit separated from the strobe main body for the bounce function has a size that only includes a flash discharge tube, a reflector (reflector), and a Fresnel panel (light emission window). Accordingly, it is very difficult to incorporate a mechanism for stably moving the Fresnel panel in a straight line.

  Therefore, the present invention has been made in view of the above problems, and can operate with a stable zoom function even when the light emitting unit that is rotatable with respect to the main body of the strobe by the bounce function is very small. An object of the present invention is to provide a strobe device.

  In order to achieve the above object, the strobe device of the present invention comprises a strobe body (1) and a light emitting part (4) in which a light emitting optical system (20, 21) is arranged, from the light emitting part (4). A strobe device having a bounce function for changing an irradiation direction of light to be irradiated and a zoom function for changing an irradiation angle of light emitted from the light emitting unit (4), in order to operate the bounce function, When the light emitting unit (4) rotates with respect to the strobe main body (1), the rotation shaft (61) becomes a center in the light emitting optical system (20, 21) and the strobe main body (1). A light-emitting light source (21) included in the light-emitting optical system (20, 21), and disposed between the light-emitting unit (4) and a condenser (38) for storing a light-emitting charge, Change the relative position with the optical member (5) before In order to operate the zoom function, a slide mechanism (10, 11, 14) for causing the optical member (5) to move straight forward is provided in the light emitting section (4), and the light emitting optical system (20, 21). It is arranged in the range from the vicinity of to the vicinity of the capacitor (38) across the rotation shaft (61).

  In the strobe device according to the first aspect of the present invention, the slide mechanism for causing the optical member to move linearly is arranged in the range from the vicinity of the light emitting optical system to the vicinity of the condenser across the rotation axis. As a result, a slide mechanism that operates stably can be efficiently arranged when the zoom function based on the straight movement of the optical member is mounted on the light emitting unit that is rotatable with respect to the strobe body because of the bounce function. . Therefore, it is possible to provide a zoom function that is excellent in operability while maintaining a reduction in size. As described above, even if the light emitting portion that is rotatable with respect to the strobe body is very small due to the bounce function, a stable zoom function can be performed.

  The strobe device according to claim 2 is formed with first and second projecting portions projecting toward the strobe body side on the common surface side of the first and second light emitting unit housings, respectively, and the first projecting portion. A rotating shaft is arranged in the part, and a slide mechanism is arranged on the one surface side. Therefore, a small strobe device can be realized without increasing the size of the light emitting unit.

  According to the strobe device of the third aspect, the slide mechanism that causes the optical member to move straight by the zoom function can also serve as the lock mechanism of the bounce function. Therefore, the lock mechanism can prevent inadvertent rotation of the light emitting unit in the normal use state.

  According to the strobe device of the fourth aspect, since the flash light source and the reflector are provided, the flash light from the flash light source can be effectively irradiated forward by the reflector.

  According to the strobe device of the fifth aspect, the space in which the first protrusion is located can be used efficiently other than the rotation shaft and the slide mechanism.

  According to the strobe device of the sixth aspect, the slide mechanism can be intensively arranged on the same surface side of the first light emitting unit casing and the second light emitting unit casing.

1 is a perspective view showing an external appearance of a strobe device in an embodiment. It is a perspective view which shows the external appearance of the flash apparatus in the state which operated the zoom function which the light emission part 4 is mounted. While the second light emitting unit housing 7 is pulled out, the light emitting unit 4 is rotated about the rotation axis disposed on the protruding portion 6a of the first light emitting unit housing 6, and the bounce function is operated. It is a perspective view which shows the external appearance of the strobe device. FIG. 3 is an exploded perspective view showing the overall configuration of the light emitting unit 4. 4 is an exploded perspective view showing a slide mechanism of the light emitting unit 4. FIG. It is a perspective view which shows the slide mechanism of the light emission part 4 in the state in which the 2nd light emission part housing | casing 7 was pulled out. It is a perspective view which shows the slide mechanism of the light emission part 4 in case the 2nd light emission part housing | casing 7 is in a normal use state. It is a disassembled perspective view which shows the structure of the flash main body 1 in the state which removed the main exterior part. It is a perspective view which shows the structure of the flash main body 1 in the completion state which removed the main exterior part. It is a disassembled perspective view which shows the main exterior components attached to a strobe main body. It is sectional drawing which shows the structure of the light emission part 4 in a normal use state. It is sectional drawing which shows the structure of the light emission part 4 in the state in which the 2nd light emission part housing | casing 7 was pulled out.

  An embodiment of a strobe device of the present invention will be described with reference to the drawings. The strobe device according to the present embodiment is a compact device having a bounce function that changes the irradiation direction of light emitted from the light emitting unit and a zoom function that changes the irradiation angle of light emitted from the light emitting unit.

  FIG. 1 is a perspective view showing an appearance of a strobe device in the embodiment. The strobe device is mainly composed of a light emitting unit 4 and a strobe body 1. The strobe body 1 contains a main circuit for performing strobe operation, and houses a power supply for operation composed of AA batteries by a battery cover 2. A leg 3 is provided at the bottom of the strobe body 1 to be attached to the accessory shoe of the camera.

  The light emitting unit 4 includes a light emitting optical system, and has a protruding portion 4a shaped to bite into the strobe body 1 on the upper surface side of the substantially box-shaped housing. In addition, a Fresnel panel 5 (optical member) made of a transparent resin, which is a part of the light-emitting optical system, is provided on the front surface of the light-emitting unit 4.

  FIG. 1 shows a strobe device in a normal use state. The light emitting unit 4 has a shape in which the strobe body 1 and the exterior are continuously integrated. The strobe body 1 has a shape inclined with respect to the mounting surface to the camera. The inclination of the strobe body 1 is to improve the portability by reducing the total thickness of the strobe device, as indicated by T in the figure. The height of the light emitting unit in a state where it is mounted on the camera needs to be high enough not to cause vignetting of the taking lens.

  For example, if the strobe body is horizontal, the legs must be extended below the strobe body to gain height, resulting in an increase in the total thickness of the strobe device and portability of the strobe device as a single unit. Is not good. On the other hand, if the strobe body is upright, it will protrude too far above the camera, which will interfere with handling.

  The strobe device according to the present embodiment is a small strobe having excellent portability even when the strobe device is a single unit or attached to a camera by making the strobe body 1 inclined. Yes.

  FIG. 2 is a perspective view showing an appearance of the strobe device in a state where the zoom function mounted on the light emitting unit 4 is operated. The light emitting unit 4 holds a Fresnel panel 5 and includes a second light emitting unit housing 7 that forms an exterior part, and a first light emitting unit housing that includes a part of a light emitting optical system including a light emitting light source described later. It is divided into six. The first light emitting unit housing 6 and the second light emitting unit housing 7 are respectively formed with a protruding portion 6a (first protruding portion) and a protruding portion 7b (second protruding portion) protruding toward the strobe body. Is done. The second light emitting unit housing 7 is relatively displaced with respect to the first light emitting unit housing 6 using a slide mechanism described later, and can move straight. That is, the slide mechanism changes the relative positions of the Fresnel panel 5 and the xenon tube 21 and the reflector 20 (see FIG. 4), which are light emission sources described later. In addition, the protrusion part 6a of the 1st light emission part housing | casing 6 and the protrusion part 7b of the 2nd light emission part housing | casing 7 exist in the location corresponding to the protrusion part 4a of the light emission part 4 mentioned above, and comprise the protrusion part 4a. To do.

  FIG. 3 shows that the second light emitting unit housing 7 is pulled out and the light emitting unit 4 is rotated around the rotation axis arranged on the protruding portion 6a of the first light emitting unit housing 6 to operate the bounce function. It is a perspective view which shows the external appearance of the strobe device in the made state. As will be described later, the light emitting unit 4 can be held at a plurality of angles around the rotation axis by using a click mechanism. Further, as will be described later, the rotation shaft is connected to a hinge hole 11d (see FIG. 4) formed in the light emitting unit upper case 11, and hinge shafts 30d and 30f (see FIG. 4) of the battery case 30 inserted through the hinge hole 11d. (See FIG. 8).

  The linear displacement operation in the zoom function and the rotation operation of the light emitting unit in the bounce function are performed manually by placing a finger on the finger catching projections 7 a formed on both side surfaces of the second light emitting unit housing 7. .

  When the light emitting unit 4 is rotated upward, a slide detection lever 45 and a bounce detection lever 46 for detecting the state of the light emitting unit 4 appear on the front surface of the strobe body 1. The slide detection lever 45 detects whether or not the second light emitting unit housing 7 is pulled out based on the presence or absence of contact with the second light emitting unit housing 7. On the other hand, the bounce detection lever 46 detects whether or not the bounce is performed based on the presence or absence of contact with the first light emitting unit housing 6.

  Next, the main configuration of the light emitting unit 4 will be described according to the assembling method. FIG. 4 is an exploded perspective view showing the overall configuration of the light emitting unit 4. First, components of the slide mechanism used for the zoom function will be described. FIG. 5 is an exploded perspective view showing the slide mechanism of the light emitting unit 4. In the light emitting unit upper case 11 constituting the first light emitting unit housing 6, hinge holes 11 d are integrally formed on both side surfaces of the narrowed portion corresponding to the protruding portion 6 a of the first light emitting unit housing 6. ing. The hinge hole 11d is rotatably fitted to a hinge shaft (rotating shaft) on the strobe body 1 side described later.

  A light emitting unit upper cover 10 constituting the second light emitting unit housing 7 is attached from above the light emitting unit upper case 11. Further, a long hole 11a (see FIG. 5) is formed on the top surface of the light emitting unit upper case 11. A boss 10 a formed on the inner surface of the light emitting unit upper cover 10 passes through the long hole 11 a and protrudes to the inner surface of the light emitting unit upper case 11. On the other hand, the slider 14 which comprises the 2nd light emission part housing | casing 7 which is a main member of a slide mechanism from the downward direction of the light emission part upper case 11 is attached.

  The slider 14 has a shape in which a cylindrical hood portion 14b and two beam-like portions 14a are integrated (see FIGS. 6 and 7). A cam portion 14c and a locking portion 14f are formed on the two beam-like portions 14a so as to face each other. A slide click spring 12 that is a compression coil spring and a pair of slide click members 13 are attached between the light emitting unit upper case 11 and the slider 14. The slide click spring 12 has an urging force that pushes the slide click member 13 and acts on the cam portion 14c of the slider 14 described above.

  The slider 14 is fixed to the boss 10a of the light emitting portion upper cover 10 by screws 15 near the base of the beam-like portion 14a, and a locking claw 14d formed on the side surface of the hood portion 14b has a light emitting portion upper cover 10. It is fixed by engaging with engagement holes 10b formed on both side surfaces of the. The light emitting unit upper cover 10 and the slider 14 are integrated to sandwich the light emitting unit upper case 11 with a slight slidable gap.

  FIG. 6 is a perspective view showing a slide mechanism of the light emitting unit 4 when the second light emitting unit housing 7 is in a pulled out state. In the state where the second light emitting unit housing 7 is pulled out, the Fresnel panel 5 is located at the second position. In this state, the slider 14 is locked while the slider locking portion 14f abuts against the rib 11m (see FIG. 5) formed on the inner surface of the light emitting unit upper case 11, and the slide click member 13 and the cam portion. It is held with an appropriate click force by the action of 14c. Also, the beam 14a of the slider 14 is in a state in which the play in the direction of arrow f in FIG. 6 is regulated over the entire length of the beam 14a by the guide rib 11b formed integrally with the light emitting unit upper case 11. is there.

  FIG. 7 is a perspective view showing a sliding mechanism of the light emitting unit 4 when the second light emitting unit housing 7 is in a normal use state. In the normal use state, the Fresnel panel 5 is located at a first position close to the xenon tube 21 and the reflector 20. In this state, in the slider 14, the hood portion 14b of the slider 14 comes into contact with the front surface 11k (see FIG. 5) of the light emitting portion upper case 11, and as described above, the slider 14 has an appropriate amount due to the action of the slide click member 13 and the cam portion 14c. It is held with a click force. Further, the tip of the beam-like portion 14 a of the slider 14 protrudes from an opening hole 11 h formed in the rear wall surface of the light emitting portion upper case 11.

  The slide mechanism used for the zoom function includes the light emitting unit upper case 11, the light emitting unit upper cover 10, and the slider 14 described above. Specifically, the light emitting unit upper case 11 has a hinge hole 11d that is a part of the first light emitting unit housing 6 and through which the rotation shaft is inserted, and the light emitting unit upper case 11 has a long hole 11a. Is formed. The light emitting unit upper cover 10 which is a part of the second light emitting unit housing 7 is formed with a boss 10a inserted through the elongated hole 11a. The slider 14 is integrated with the light emitting unit upper cover 10 by a screw 15 engaged with the boss 10a, and the light emitting unit upper case 11 is slidably held. As a result, the slide mechanism is intensively arranged on the same surface side of the first light emitting unit housing 6 and the second light emitting unit housing 7.

  To the reflector case 18 (see FIG. 4), a xenon tube 21 (flash emission light source) that is a light emission light source and a reflector 20 that folds light of the xenon tube 21 forward are attached as a part of the light emission optical system. This reflector 20 can effectively irradiate the flash light from the xenon tube 21 forward. The reflector 20 is fitted from the front of the reflector case 18 and is held by a plurality of locking claws 18 b formed integrally with the reflector case 18. The xenon tube 21 is inserted into the reflector case 18 from the side of the attached reflector 20 and held by the reflector 20 using a silicon holding band 28.

  A reflective surface 18 a is formed on the side wall of the reflector case 18. A fiber (optical fiber) 23 is inserted from the rear of the reflector case 18 so that the cut surface is directed to the reflecting surface 18a. An opening (not shown) is provided at a portion corresponding to the reflection surface 18 a of the reflector 20. A part of the light emitted from the xenon tube 21 can be reflected by the reflecting surface 18 a and incident on the fiber 23. A trigger coil 19 for applying a high-voltage trigger signal to the xenon tube 21 at the time of light emission is accommodated in the rear central portion of the reflector case 18 in which the reflector 20 is accommodated.

  The reflector case 18 is fixed to the light emitting unit upper case 11 with screws 27. The fiber 23 drawn out to the rear of the reflector case 18 is gently bent 90 degrees, and is drawn out of the light emitting unit 4 from the hinge hole 11d on the opposite side.

  A pair of a bounce click spring 16 and a bounce click member 17 that are compression coil springs are attached to the rear of the hinge hole 11d. The bounce click member 17 projects with an urging force of the bounce click spring 16 from an opening 11e provided behind the hinge hole 11d.

  The first light emitting unit casing 6 is completed by attaching the light emitting unit lower case 24 to the light emitting unit upper case 11 from below. The light emitting part lower case 24 has an engaging claw 24a formed in the front and an engaging hole 24b formed in the rear, respectively, an engaging groove 11f (see FIG. 5) formed in the light emitting part upper case 11 and a protrusion 11g (see FIG. 5). It is fixed by engaging (see FIG. 6).

  The Fresnel panel 5 is placed in front of the hood portion 14b of the slider 14, and the light emitting portion lower cover 25 is attached to the light emitting portion upper cover 10 from below, whereby the second light emitting portion casing 7 is completed.

  A flange portion 5 a is formed around the Fresnel panel 5. In the Fresnel panel 5, the flange portion 5a is fitted into a groove 25a formed at the tip of the light emitting unit lower cover 25, a groove formed at the tip of the light emitting unit upper cover 10, and a similar groove (not shown). It does not fall out. The light emitting unit lower cover 25 is fixed from behind to a boss 14e formed on the hood 14b of the slider 14 by a screw 26.

  The strobe device having the light emitting unit having the above structure has a bounce function and a zoom function. The zoom function is realized by moving the second light emitting unit housing 7 holding the Fresnel panel 5 back and forth by the slider mechanism. A Fresnel lens having a positive refractive power is formed on the Fresnel panel 5. Further, when the second light emitting unit housing 7 is pulled out and the Fresnel panel 5 moves to a second position separated (separated) from the xenon tube 21 and the reflector 20, the irradiation angle is reduced by the positive refractive power. The guide number increases.

  Next, the main structure of the strobe body 1 will be described according to its assembling method. FIG. 8 is an exploded perspective view showing the configuration of the strobe body 1 with the main exterior portion removed. FIG. 9 is a perspective view showing a configuration of the strobe body 1 in a completed state with main exterior parts removed. In FIG. 9, the strobe body 1 is shown as viewed from the opposite direction to FIG.

  The strobe body 1 has a box-shaped battery storage portion 30a for storing two AA batteries, and a battery case 30 in which a pair of arm portions 30b and 30c extending toward the light emitting portion 4 are integrally formed. Is a structural member.

  At the tips of the arm portions 30b and 30c, cylindrical hinge shafts 30d and 30f having opening holes 30e and 30g, respectively, are formed projecting inward. In addition, a plurality of click grooves 30h arranged at a predetermined angle around the hinge shafts 30d and 30f are integrally formed in the vicinity of the hinge shafts 30d and 30f.

  The hinge shafts 30d and 30f are bounce rotation shafts on the strobe body 1 side, and are slidably fitted into the hinge holes 11d of the light emitting unit 4. Each click groove 30h is engaged with a bounce click member 17 attached to the light emitting unit 4, and provides a click mechanism that can hold the light emitting unit 4 at a predetermined angle.

  As described above, the light emitting unit 4 is held on the strobe body 1 by the hinge shafts 30d and 30f. When the light emitting unit 4 is assembled, the arm 30c on one side having flexibility is opened, the hinge shaft 30d on the other side is fitted into the hinge hole 11d of the light emitting unit 4, and then the arm 30c. The hinge shaft 30f is inserted into the other hinge hole 11d.

  The opening holes 30e and 30g provided in the center of the hinge shafts 30d and 30f are used for connecting the fiber 23 of the light emitting unit 4 and lead wires (not shown) connected to the xenon tube 21 and the trigger coil 19 to the light emitting unit 4. It is for pulling out from the inside.

  The hinge cover 44 is one of the exterior members of the strobe body 1 and forms a wall surface around the rotation axis of the light emitting unit 4. The arm portion 30c having flexibility is in an open state as it is under the urging force of the bounce click member 17 of the light emitting portion 4. However, the opening of the arm portion 30c is corrected by attaching the hinge cover 44 engaged with the holes 44b and the boss 44a to both the arm portions 30b and 30c. Note that a slide detection lever 45 and a bounce detection lever 46 are attached to the hinge cover 44 in a rotatable and swingable state.

  A fiber holder 43 having a reflection surface that bends light from the fiber 23 by 90 degrees toward the opening 43a is attached to the tip of the fiber 23 extending from the light emitting unit 4. The fiber holder 43 is inserted into the holder insertion portion 30i in the center of the battery chamber.

  A battery holder 30 a of the battery case 30 is attached with a section holder 42 that holds battery sections 40 and 41. On the upper surface side of the battery case 30, the main board 31 is fixed with screws 34. The main board 31 has a digital circuit on which a CPU 32 and a light receiving sensor 33 arranged on the back side thereof are mounted. The light receiving sensor 33 is located on the opening 43 a of the fiber holder 43 and can receive light from the light emitting unit 4 transmitted through the fiber 23. The light receiving sensor 33 monitors (monitors) the light amount at the time of light emission, and causes the CPU 32 to control the light emission amount.

  A sub-board 36 is attached to the lower surface side of the battery case 30. The sub-board 36 is a high voltage circuit provided with a step-up transformer 37 and a cylindrical main capacitor 38 that is provided at a position adjacent to the light-emitting unit 4 when assembled, and stores a boosted charge for light emission. Have Two switch members 47 and 48 are mounted on the end near the main capacitor 38. These switch members 47 and 48 can contact a slide detection lever 45 and a bounce detection lever 46 attached to the hinge cover 44, respectively. The switch members 47 and 48 are in contact with the slide detection lever 45 and the bounce detection lever 46 that swing according to the state of the bounce function or zoom function, and switch ON / OFF, respectively.

  When the sub board 36 is attached to the battery case 30 with the screws 39, the main capacitor 38 is surrounded by the arm portions 30 b and 30 c of the battery case 30 and the hinge cover 44. A switch board 35 on which a power switch and a display LED are mounted is attached to the rear part of the battery storage unit 30a. In this way, the main assembly of the strobe body 1 to which the light emitting unit 4 is attached is completed.

  As shown in FIG. 9, the fiber 23 drawn from the opening hole 30g of the hinge shaft 30f passes through the guide portion 30k formed on the side surface of the arm portion 30c, and enters the inside of the battery case 30 from the root of the arm portion 30c. It is wired to go. A similar guide portion 30j is also formed on the arm portion 30b side. In addition to the fiber 23, lead wires (not shown) drawn from the light emitting section 4 are wired through both guide sections 30j and 30k. Note that the lead wires for connecting the substrates and the like are not particularly related to the present invention, and thus illustration and description thereof are omitted.

  A main body upper cover 50, which is an exterior member, is attached to the battery case 30 to which the light emitting unit 4 and the various substrates (the main substrate 31, the switch substrate 35, and the sub substrate 36) are attached. FIG. 10 is an exploded perspective view showing main exterior parts attached to the strobe body. The main body upper cover 50 is temporarily fixed to the battery case 30 by engagement with a locking hole 50a or the like, and then fixed by screws 53 and 54. Since the tip portions of the arm portions 30b and 30c of the battery case 30 are securely fixed to the main body upper cover 50 by the screws 54, the hinge shafts 30d and 30f that hold the light emitting unit 4 at the tip portions of the arm portions 30b and 30c are It becomes unstable.

  By attaching the battery lid 2 and the main body lower cover 51 to the battery case 30, the entire strobe device is completed. The battery lid 2 is attached by fitting the hinge portions 2a and 2b to the main body upper cover 50 and the main body lower cover 51 in a rotatable manner.

  The main body lower cover 51 is held by engaging the front side with engaging claws 30m formed at the tips of both arms 30b and 30c of the battery case 30, and the rear side is coupled to the battery case 30 by screws 55. It is fixed with. The main body lower cover 51 is preinstalled with terminals for communication with the camera and legs 3 for attaching the camera to an accessory shoe. Since the leg part 3 is not particularly related to the present invention, its description is omitted.

  Next, a slide mechanism used for the zoom function will be described. FIG. 11 is a cross-sectional view showing the structure of the light emitting unit 4 in a normal use state. FIG. 12 is a cross-sectional view showing the structure of the light emitting unit 4 in a state where the second light emitting unit housing 7 is pulled out. In the drawing, as described above, the rotating shaft 61 is for the bounce function configured by the hinge hole 11d of the light emitting unit upper case 11 and the hinge shafts 30d and 30f of the battery case 30 inserted through the hinge hole 11d. It is a pivot axis. The rotation shaft 61 is indicated by a mark for easy understanding in the drawing.

  In a normal use state of the light emitting unit 4, the beam-like portion 14 a of the slider 14 protrudes rearward from the light emitting unit 4 and enters a gap formed almost above the cylindrical main capacitor 38 in the strobe body. The slide mechanism including the slider 14 as a main member extends from the vicinity (above) of the light emitting optical system including the xenon tube 21 and the reflector 20 to the vicinity of the main capacitor 38 in the strobe body 1 across the rotation shaft 61. It is arranged over a long distance (range).

  In the normal use state of the light emitting unit 4, the light emitting unit upper cover 10 and the beam-like portion 14a of the slider 14 sandwich the light emitting unit upper case 11, so that the range in which the play in the direction of the arrow g in FIG. And L1 (see FIG. 11). This length L1 is a sufficiently long distance with respect to the length L2 in the front-rear direction of the second light emitting unit housing 7 excluding the protruding portion 7b. Even in the state in which the second light emitting unit housing 7 is pulled out, the range in which the backlash is restricted has a length L1 '(see FIG. 12). This length L1 'is comparable to the length L2 of the second light emitting unit housing 7 in the front-rear direction.

  Thus, even if the second light emitting unit housing 7 is pulled out by the slide mechanism having a sufficient engagement amount, the tip end portion thereof does not easily swing up and down.

  Further, the backlash of the second light emitting unit housing 7 in the left-right direction (the direction of the arrow f in FIG. 6) is also regulated as follows. That is, even when the second light emitting unit casing 7 is pulled out, the guide ribs 11b and 11d formed integrally with the light emitting unit upper case 11 are sufficient to cover almost the entire beam-like portion 14a of the slider 14. Since it has a length, backlash in the left-right direction of the second light emitting unit housing 7 is restricted. Therefore, there is no problem that the second light emitting unit housing 7 swings left and right in the course of linear movement, and the operability is impaired.

  As described above, the strobe device of the present embodiment has the rotation shaft 61 closer to the strobe body 1 on the common surface side of the box-shaped first light emitting unit housing 6 and the second light emitting unit housing 7. The protrusion 6a and the protrusion 7b are respectively formed. The strobe device provides a slide mechanism that can operate stably and has a sufficient length in the straight movement direction by effectively using the space inside the protrusions 6a and 7b.

  Each of the protrusions 6a and 7b is formed so as to bite into the main body 1 of the strobe on the same surface side of the box-shaped first and second light emitting unit housings and using a gap near the cylindrical main capacitor 38. Is done. Therefore, it is possible to provide a small strobe device having both a bounce function and a zoom function without causing the light emitting unit 4 to become extremely large.

  Further, in the normal use state where the Fresnel panel 5 is in the first position, the tip of the beam-like portion 14a of the slider 14 enters the inside of the strobe body 1 and engages with the hinge cover 44. The bounce operation is restricted. That is, the slide mechanism that operates the zoom function that involves linear movement of the second light emitting unit housing 7 also serves as a lock mechanism for the bounce function. This locking mechanism is for preventing inadvertent rotation of the light emitting unit 4 in a normal use state. Here, the reason for releasing the lock after pulling out the second light emitting unit housing 7 to narrow the light distribution angle is as follows.

  Usually, the irradiation angle of a small strobe with emphasis on portability is fixed on the wide-angle side near 28 mm that covers the angle of view of most photographing lenses. On the other hand, at the time of bounce, light strikes the subject through reflection from the ceiling or the like. Thus, since the irradiation range is expanded by the length of the optical path with respect to the direct distance to the subject, a wider irradiation angle is unnecessary. Furthermore, it is preferable that the guide number is increased by narrowing the light distribution angle at the time of bounce in a small strobe that tends to have a low guide number. For this reason, the above-mentioned lock mechanism is used to forcibly narrow the irradiation angle during bounce.

  The trigger coil 19 described above is housed in the rear center of the light emitting optical system of the reflector case 18. That is, the trigger coil 19 is accommodated in the space 11 i (see FIG. 6) in the protruding portion 6 a of the first light emitting unit housing 6 and sandwiched between the two beam-like portions 14 a of the slider 14. Thereby, the space in which the protrusion part 6a is located can be used efficiently other than the hinge hole 11d and the slide mechanism.

  As described above, even when the light emitting unit that is rotatable with respect to the strobe body by the bounce function is very small, the strobe device enables a stable zoom function operation.

  In other words, because of the bounce function, when a zoom mechanism based on a straight movement of the Fresnel panel is mounted on the light emitting portion that is rotatable with respect to the strobe body, a slide mechanism that operates stably can be efficiently arranged. Accordingly, it is possible to provide a zoom function that is excellent in operability while maintaining a small size.

  The present invention is not limited to the configuration of the above-described embodiment, and any configuration can be used as long as the functions shown in the claims or the functions of the configuration of the present embodiment can be achieved. Is also applicable.

  For example, in the above-described embodiment, the strobe device that can be attached to and detached from the imaging apparatus has been illustrated. However, the present invention is not limited to this, and may be applied to a strobe apparatus that is integrated with the imaging apparatus.

  In addition, the imaging device to which the strobe device of the above embodiment is mounted is not particularly limited, such as a compact type digital camera, film camera, digital video camera, digital SLR (single-lens reflex camera), and the like.

DESCRIPTION OF SYMBOLS 1 Strobe body 4 Light emission part 5 Fresnel panel 6 1st light emission part housing | casing 6a, 7b Projection part 7 2nd light emission part housing | casing 11d Hinge hole 14 Slider 14a Beam-shaped part 30d, 30f Hinge shaft 38 Main capacitor | condenser 61 rotation axis

Claims (6)

A bounce function that includes a strobe body and a light emitting unit in which a light emitting optical system is disposed, and a zoom function that changes an irradiation angle of light emitted from the light emitting unit. A strobe device having
In order to operate the bounce function, a rotation axis that becomes a center when the light emitting unit rotates with respect to the strobe body is adjacent to the light emitting optical system and the light emitting unit in the strobe body. It is placed between the capacitor that stores the charge for light emission provided at the position,
In order to change the relative position between the light emitting light source and the optical member included in the light emitting optical system to operate the zoom function, the light emitting unit is provided with a slide mechanism that causes the optical member to move straight forward, A strobe device arranged in the range from the vicinity of the light emitting optical system to the vicinity of the condenser across the rotation axis. The light emitting unit
A first light-emitting unit housing that houses the light-emitting light source and has the pivot shaft;
A second light-emitting unit housing that holds the optical member and can move linearly relative to the first light-emitting unit housing;
A first protrusion and a second protrusion protruding to the strobe body side are formed on a common surface side of the first light emitting unit casing and the second light emitting unit casing, respectively. The rotating shaft is disposed on the protruding portion of 1,
The strobe device according to claim 1, wherein the slide mechanism is arranged on the common one side. A first position where the optical member approaches the light emitting light source; and a second position where the optical member separates;
In the first position, a part of the member constituting the slide mechanism protrudes from the light emitting part and engages with the strobe body, whereby the rotation of the light emitting part is restricted,
3. The strobe device according to claim 2, wherein in the second position, a part of a member constituting the slide mechanism is housed in the light emitting unit, whereby the light emitting unit can be rotated. .   4. The strobe device according to claim 3, wherein the light emitting optical system includes a flash light source as the light source, and a reflector that folds light emitted from the light source forward. A trigger coil for applying a high-voltage trigger signal during light emission to the flash light source is disposed in a space where the first protrusion formed in the first light-emitting unit housing is located. The strobe device according to claim 4. The slide mechanism is a part of the first light emitting unit casing, and a case in which an elongated hole is formed, and a part of the second light emitting unit casing and is inserted into the elongated hole. 3. A strobe device according to claim 2, comprising: a cover having a boss formed thereon; and a slider integrated with the cover by engaging with the boss and slidably holding the case. .

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