JP4280514B2 - Lighting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of an illumination device attached to an imaging device such as a video camera.
[0002]
[Prior art]
In recent years, some imaging devices such as video cameras can take still images in addition to moving images. Further, as an illumination device for illuminating a subject at the time of photographing, there is an illumination device that is connected to the imaging device main body and is controlled by communicating with the main body via communication means, in addition to the one built in the imaging device. This type of lighting device is an external lighting device that integrates, for example, a moving image shooting lamp and a still image shooting strobe. The moving lamp emits steady light when shooting a movie, and a strobe lighting when shooting a still image. Lights up and flashes.
[0003]
The illumination device detachable from the imaging device main body as described above is controlled in light emission operation by operation from the imaging device main body, but the illumination device itself is provided with a switch for switching the light emission mode, and is desired by the user. When shooting the image, it is possible to switch between the light emission mode of the moving image shooting lamp and the still image shooting strobe.
[0004]
A changeover switch for switching the light emission mode is generally mounted on a hard board, and the mounted changeover switch is operated by an operation knob or the like provided on the exterior surface.
[0005]
[Problems to be solved by the invention]
Incidentally, an illuminating device equipped with a strobe for taking a still image generally has a main capacitor that is charged and discharged when the strobe emits light. The main capacitor is a part having a large volume among electric elements, and since the place where the main capacitor is arranged is limited by design, it is often arranged at a substantially central portion of the lighting device. In relation to this, the substrate on which the main capacitor is mounted needs to be arranged so as to avoid the main capacitor, and the place where the main capacitor is arranged is limited in design. Since a changeover switch for changing the light emission mode of the lighting device is generally mounted on this board, the place where the changeover switch is arranged is limited, and the degree of freedom of arrangement of the switch is limited. In addition, depending on the position of the changeover switch, there is a problem that the quality is lost when the click feeling is lost because of wobbling during operation.
[0006]
(Object of invention)
An object of the present invention is to provide an illuminating device that has few restrictions on the degree of freedom of arrangement of component parts, can stably hold an operation member, and can improve the operational feeling. .
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention controls a strobe light emitting unit that emits strobe light, a columnar capacitor that is arranged upright in the center behind the strobe light emitting unit, and that charges and discharges during strobe light emission, and controls the strobe light emission. A circuit on which a circuit for switching and a flash emission mode switching switch are mounted, and an operation for switching the flash emission mode by engaging the switch and changing the state of the switch in conjunction with an external operation A member, and a holding member that holds the strobe light emitting unit, the substrate, and the capacitor, and the switch is located in a gap between the substrate and the capacitor, and is part of the substrate and the holding member. A certain plate portion is positioned in parallel on both sides of the capacitor, the operation member is positioned behind the capacitor, and the front It has two receiving surfaces on both sides avoiding the capacitor, in which respective receiving surface is an illuminating device held by abutting the respective end faces of the substrate and the plate portion.
Further, the present invention provides a strobe light emitting unit that emits strobe light, a columnar capacitor that is arranged upright in the center behind the strobe light emitting unit, and that charges and discharges during strobe light emission, a circuit that controls strobe light emission, and a strobe light emission mode Two substrates on which a switch for switching is mounted, an operation member for switching the strobe light emission mode by engaging the switch and changing the state of the switch in conjunction with an external operation; A strobe light emitting unit, the substrate, and a holding member for holding the capacitor, the switch is located in a gap between the substrate and the capacitor, and the two substrates are parallel to both sides of the capacitor The operation member is located behind the capacitor and has two receiving surfaces on both sides avoiding the capacitor. A, in which respective receiving surface is an illuminating device held by abutting the respective end faces of the two substrates.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on illustrated embodiments.
[0009]
(First Embodiment) FIGS. 1 and 2 are perspective views showing an imaging device illumination device according to a first embodiment of the present invention. As shown in the drawing, the illumination device 1 includes a rear cover 11. The front cover 12, the window member 13, the main body communication member 14, the lock member 15, and the operation knob 17 constitute an external portion. Reference numeral 121 denotes a heat exhaust port for releasing heat generated from the lamp to the outside of the apparatus.
[0010]
FIG. 3 is a diagram showing a state in which the lighting device 1 is connected via the connection part 3 of the video camera 2, and operations such as light emission are controlled in conjunction with the operation of the video camera 2.
[0011]
FIG. 4 is an exploded perspective view showing the internal configuration of the lighting device 1.
[0012]
The main unit 20 is disposed so as to be surrounded by the rear cover 11 and the front cover 12, and the main unit 20 holds each internal component. A lamp radiation surface 131 through which the luminous flux of the lamp that emits steady light passes is provided at the upper part of the window member 13, and a strobe radiation surface 132 through which the luminous flux of the strobe light passes is provided at the lower part of the window member 13. Reference numeral 16 denotes a lock holding member. When the lighting device 1 is connected to the connection part 3 of the video camera 2, the user rotates the lock member 15 around the lock holding member 16 to fix it. become.
[0013]
FIG. 5 is an exploded perspective view showing components constituting the main unit 20.
[0014]
The main body 21 is a holding member for holding each component and constituting the main body unit 20. A lamp reflecting shade 22 is attached to the upper part of the main body 21. A lamp 23 is provided at the center of the optical axis of the lamp reflecting shade 22 and emits light when operated from the video camera 2. Further, the lamp 23 is attached so as to be detachable in the optical axis direction for lamp replacement. A strobe light emitting unit 24, a light guide 28 and a reflecting plate 29 are attached to the lower part of the main body 21. The strobe light emitting unit 24 mainly includes a xenon tube 25, a strobe reflection shade 26, and a holder 27, and is incorporated into the main body 21 from below. Then, a light guide 28 and a reflecting plate 29 are assembled from the front in front of the strobe light emitting unit 24. The light guide 28 condenses the light emitted from the xenon tube 25, and the reflector 29 reflects the light emitted from the xenon tube 25 and emits it to a desired angle.
[0015]
Reference numeral 30 denotes a substrate on which a change-over switch 31, a columnar main capacitor 32, a trigger coil 33, an oscillation transformer 34, and other electrical elements (not shown), which will be described later with reference to FIG. Thus, light emission control of the lamp and strobe is performed. Here, the substrate 30 is electrically connected to the lamp 23 and the xenon tube 25 by lead wires (not shown). Similarly, the trigger coil 33 is electrically connected to the strobe reflection shade 26 by a lead wire (not shown). Further, the substrate 30 is electrically connected to the terminal of the main body communication member 14 by a lead wire (not shown), and the main body communication member 14 is electrically connected to the connection portion 3 of the video camera 2 to be electrically connected to the video camera 2. Connected to the power supply for electrical communication and power supply.
[0016]
FIG. 6 is a cross-sectional view illustrating the lighting device after assembly.
[0017]
As described above, the front cover 12 is provided with the heat exhaust port 121 so that the heated air inside the lamp can come into contact with the outside air. Here, considering that foreign matters such as dust and dust enter from the heat exhaust port 121, the projection 133 of the window member 13 and the projection 211 of the main body 21 form a wall. Therefore, even if a foreign object enters, the foreign object is blocked by the wall, and can be prevented from reaching the strobe light emitting unit below the wall. Further, since the projection 211 of the main body 21 is provided between the lamp unit and the strobe unit, it also plays a role of dividing the light beam from the lamp 23 and the light beam from the strobe. Further, since the window member 13 is made of a colorless and transparent material, scattering or irregular reflection occurs when strong lamp light or strobe light hits the window member 13, and as a result, unintended light flux enters the effective light range. Prevents uneven light distribution.
[0018]
7-10 is a figure for demonstrating the board | substrate 30 and its mounting components, the operation knob 17, and its holding mechanism.
[0019]
FIG. 7 is a perspective view of the lighting device before the assembly of the board. A changeover switch 31, a main capacitor 32, and the like are mounted on the board 30, and the main capacitor 32 is arranged along the board 30 (in other words, The substrate 30 is arranged in the columnar direction of the main capacitor 32), and a changeover switch 31 is mounted in the gap. In addition, a plate-like protrusion 212 is provided on the main body 21 along the side opposite to the substrate 30 (in the columnar direction of the main capacitor 32).
[0020]
FIG. 8 is a perspective view showing the substrate after assembly, and FIG. 9 is a perspective view after the substrate is assembled as seen from the front side of the lighting device.
[0021]
On the back side of the operation portion 171 of the operation knob 17, two receiving surfaces 172 and 173 are provided at both ends, and an engagement portion 174 that engages with the changeover switch 31 is provided.
[0022]
FIG. 10 is a top view of the main unit 20 and its related parts.
[0023]
As shown in the drawing, the engaging portion 174 of the operation knob 17 disposed on the back surface of the main body 21 is engaged with the operating portion of the changeover switch 31 mounted on the substrate 30.
[0024]
In the above configuration, when the user slides the operation portion 171 of the operation knob 17 in the vertical direction (longitudinal direction of the main capacitor 32 perpendicular to the optical axis), the changeover switch 31 is operated in conjunction with the movement. And the flash mode can be switched. The change-over switch 31 is made up of known parts that can provide an appropriate click feeling, and the operation portion of the change-over switch 31 is interlocked to give an appropriate click feeling for each mode to be switched.
[0025]
Here, the operation knob 17 is provided with two receiving surfaces 172 and 173 at both ends thereof, and the receiving surface 172 (may be also on the receiving surface 173 side) is a plate-like shape of the main body 21 provided in a rail shape. It is in contact with the end surface of the protrusion 212. The receiving surface 173 is in contact with the end surface of the substrate 30. During operation, the operation knob 17 slides up and down while the receiving surfaces 172 and 173 of the operation knob 17 are in contact with the protrusions 212 of the main body 21 and the end face of the substrate 30 provided in a rail shape, respectively.
[0026]
In this manner, the operation knob 17 is arranged with the receiving surfaces 172 and 173 distributed at both ends so as to avoid the position of the main capacitor 32 arranged at the substantially central portion of the lighting device, and each receiving surface sandwiches the main capacitor 32 and Since the substrate 30 and the projections 212 that are arranged in parallel to the columnar direction are held in contact with the respective end faces, the degree of freedom of arrangement of components such as a changeover switch is increased (for example, the front side of the lighting device or If there is a board on the bottom side, the placement location of the changeover switch is restricted due to the relationship with the location where it is operated, and this places restrictions on the placement location of other components. ) And the operation knob 17 can be stably held. At this time, since the projection 212 of the main body 21 provided in the rail shape also plays a role of guiding the operation knob 17 in the vertical direction, the operation knob 17 can be stably operated. Therefore, the operability of the operation knob 17 is also improved.
[0027]
In addition, the main capacitor 32 may be damaged in connection with the substrate 30 due to external vibration or the like. To prevent this, the protrusion 212 of the main body 21 provided in a rail shape causes the main capacitor 32 to be damaged. One side of the wall to be held constitutes a receiving surface when subjected to vibration or the like, and the main capacitor 32 is stably held.
[0028]
Further, since the change-over switch 31 is provided with a mechanism for giving an appropriate click feeling for each selectable flash emission mode, the operational feeling is not impaired. It should be noted that this mechanism for giving a click feeling may be provided on the operation knob 17 side.
[0029]
Further, the position of the operation portion 171 for sliding the operation knob 17 is on the exterior surface side opposite to the surface on which the two receiving surfaces 172 and 173 are formed, and each receiving surface is formed. Since it is provided at a substantially intermediate position, the operability becomes better.
[0030]
Furthermore, since the main capacitor 32 is disposed in a substantially central space between the projection 212 and the substrate 30, the space efficiency is improved and the overall lighting device is reduced in size. It will be a thing.
[0031]
(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIGS.
[0032]
FIGS. 11 to 13 are views showing the boards 30 and 41 and their mounting parts, the operation knob 17 and its holding mechanism of the lighting device 1, and FIG. 11 is a perspective view before the board is assembled.
[0033]
A changeover switch 31 and a columnar main capacitor 32 are mounted on the substrate 30. The main capacitor 32 is arranged along the board 30, and the changeover switch 31 is mounted in the gap. The board 41 is provided in parallel to the opposite surface of the board 30, and an electric element (not shown) is mounted. It is electrically connected to the substrate 30 with a connector (not shown).
[0034]
FIG. 12 is a perspective view after assembling the board, and FIG. 13 is a perspective view after assembling the board as seen from the front side.
[0035]
On the back side of the operation portion 171 of the operation knob 17, two receiving surfaces 172 and 173 are provided at both ends, and an engagement portion 174 that engages with the changeover switch 31 is provided.
[0036]
FIG. 14 is a top view of the main body unit 20 and its related parts. As shown in the figure, the switching portion 17 of the operation knob 17 disposed on the back surface of the main body 21 is mounted on the substrate 30. The switch 31 is engaged with the operation portion.
[0037]
In the above configuration, when the user slides the operation unit 171 of the operation knob 17 in the vertical direction, the changeover switch 31 is operated in conjunction with the movement, and the lamp and strobe emission modes can be switched. The change-over switch 31 is provided with parts that can provide an appropriate click feeling, and an appropriate click feeling is given for each mode to be switched by interlocking the operation part of the change-over switch 31.
[0038]
Here, the operation knob 17 is provided with two receiving surfaces 172 and 173 at both ends thereof, and the receiving surface 172 is in contact with the end surface of the substrate 41. The receiving surface 173 is in contact with the end surface of the substrate 30. During operation, the receiving surfaces 172 and 173 of the operation knob 17 slide up and down while contacting the end surfaces of the substrate 41 and the substrate 30, respectively.
[0039]
In this manner, the operation knob 17 is arranged with the receiving surfaces 172 and 173 distributed at both ends so as to avoid the position of the main capacitor 32 arranged at the substantially central portion of the lighting device, and each receiving surface sandwiches the main capacitor 32 and Since it is held in contact with the end faces of the substrates 30 and 41 arranged in parallel to the columnar direction, the degree of freedom of arrangement of components such as a change-over switch is increased and the operation knob 17 is stably held. can do.
[0040]
Furthermore, since the capacitor is arranged in a space between the two substrates , the space efficiency is improved and the overall lighting device can be reduced in size.
[0041]
Other effects are the same as those of the first embodiment.
[0042]
Finally, embodiments of the lighting device according to the present invention other than the configuration of the invention described in claim 1 are listed below.
[0043]
(Embodiment 1) A strobe light emitting unit that performs strobe light emission, at least one substrate including a circuit that controls the strobe light emission, a columnar capacitor that charges and discharges during strobe light emission, the strobe light emitting unit, the substrate, and the capacitor In a lighting device having a holding member to hold and an operation member for switching a strobe light emission mode, the operation member has at least two receiving surfaces, and the receiving surfaces are in contact with at least one end surface of the substrate. An illumination device for an imaging apparatus.
[0044]
(Embodiment 2) A strobe light emitting unit that performs strobe light emission, at least one substrate including a circuit that controls strobe light emission, a columnar capacitor that charges and discharges during strobe light emission, the strobe light emitting unit, the substrate, and the capacitor In a lighting device having a holding member to hold and an operation member for switching a strobe light emission mode, the operation member has at least two receiving surfaces, and the receiving surface has a protruding shape formed on the holding member. An illumination device for an imaging apparatus, wherein the illumination apparatus is in contact with at least one of end faces.
[0045]
(Embodiment 3) A strobe light emitting unit that performs strobe light emission, a columnar capacitor that is disposed substantially at the center of the lighting device, and that is charged and discharged during strobe light emission, and is arranged in parallel to the columnar direction of the capacitor, controls the strobe light emission. A circuit on which a circuit for switching and a flash emission mode switching switch are mounted, and an operation for switching the flash emission mode by engaging the switch and changing the state of the switch in conjunction with an external operation A member, and a holding member that holds the strobe light emitting unit, the substrate, and the capacitor, and includes a plate unit that faces the substrate with the capacitor interposed therebetween, and the operation member determines the position of the capacitor. There are receiving surfaces at both avoiding ends, and each receiving surface is held so as to contact each end surface of the substrate and the plate portion. A lighting device characterized by the above.
[0046]
In the above-described configuration, each end face of the substrate and the plate portion has receiving surfaces on both ends of the operating member avoiding the position of the capacitor, and is disposed on both sides in parallel with the columnar direction across the capacitor. In addition, the receiving surfaces are held in contact with each other.
[0047]
(Embodiment 4) A strobe light emitting unit that emits strobe light, a columnar capacitor that is disposed at substantially the center of the lighting device, and that is charged and discharged at the time of strobe light emission, and is arranged in parallel to the columnar direction of the capacitor across the capacitor And two substrates on which electric parts including a circuit for controlling strobe light emission and a switch for changing strobe light emission mode are mounted, and the state of the switch in conjunction with the external operation by engaging with the switch. An operation member for changing the strobe light emission mode by changing the operation member, the operation member having receiving surfaces at both ends avoiding the position of the capacitor, and the receiving surface is disposed with the capacitor interposed therebetween. An illumination device, wherein the lighting device is held so as to be in contact with each end face of two substrates.
[0048]
(Embodiment 5) The operating member is slid linearly in a state where the two receiving surfaces are in contact with the end surfaces, and at least one of the two receiving surfaces and the end surfaces. The illumination device according to Embodiment 3 or 4, wherein a mechanism for guiding the slide operation is formed in a combination portion of the receiving surface and the end surface.
[0049]
(Embodiment 6) Embodiments 3 to 5 are characterized in that either one of the operation member and the switch is provided with a mechanism for providing an appropriate click feeling for each selectable flash emission mode. Lighting device.
[0050]
(Embodiment 7) The position of the operation part for operating the operation member is on the exterior surface side opposite to the surface on which the two receiving surfaces are formed, and is substantially the surface on which the two receiving surfaces are formed. The lighting device according to embodiment 6, wherein the lighting device is at an intermediate position.
[0051]
(Embodiment 8) The illumination device according to any one of claims 1 and 1 to 7, further comprising a lamp that emits constant light.
[0052]
(Embodiment 9) The illumination apparatus according to any one of claims 1 and 8, wherein the illumination apparatus is connected to the imaging apparatus main body via a communication unit.
[0053]
【The invention's effect】
As described above, according to the present invention, there is provided an illuminating device that has few restrictions on the degree of freedom of arrangement of component parts, can stably hold an operation member, and can improve the operational feeling. It can be done.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a lighting device according to a first embodiment of the present invention.
FIG. 2 is an external perspective view of the illumination device according to the first embodiment of the present invention.
FIG. 3 is an external perspective view when the illumination device according to the first embodiment of the present invention is connected to a video camera.
FIG. 4 is an exploded perspective view showing the internal configuration of the lighting apparatus according to the first embodiment of the present invention.
5 is an exploded perspective view showing an internal configuration of the main unit shown in FIG. 4. FIG.
FIG. 6 is a cross-sectional view showing the assembled lighting device according to the first embodiment of the present invention.
FIG. 7 is an exploded perspective view of the lighting device according to the first embodiment of the present invention before assembly.
FIG. 8 is a perspective view showing a state after the substrate is assembled in the lighting apparatus according to the first embodiment of the present invention.
FIG. 9 is a perspective view after assembling the board as seen from the front side in the lighting apparatus according to the first embodiment of the present invention.
FIG. 10 is a view of the main unit and its related parts as seen from above in the lighting apparatus according to the first embodiment of the present invention.
FIG. 11 is a perspective view showing a lighting device according to a second embodiment of the present invention before assembly of a substrate.
FIG. 12 is a perspective view showing the lighting device according to the second embodiment of the present invention after the substrate is assembled.
FIG. 13 is a perspective view showing an internal configuration of a lighting apparatus according to a second embodiment of the present invention.
FIG. 14 is a top view showing an internal configuration of a lighting apparatus according to a second embodiment of the present invention.
[Explanation of symbols]
1 lighting device 2 video camera 17 operation knob 20 body unit 21 body 24 strobe light emitting unit 25 xenon tube 26 strobe reflection shade 27 holder 28 light guide 29 reflector 30 substrate 31 changeover switch 32 main capacitor 33 trigger coil 34 oscillation transformer 41 substrate

Claims (3)

A flash unit that emits flash,
A columnar capacitor that is placed upright in the center behind the strobe light emitting unit and that is charged and discharged during strobe light emission,
A circuit board on which a circuit for controlling strobe light emission and a switch for changing strobe light emission mode are mounted;
An operation member for engaging the switch and changing the state of the switch in conjunction with an external operation to switch the strobe emission mode;
A holding member for holding the strobe light emitting unit, the substrate and the capacitor ;
The switch is located in a gap between the substrate and the capacitor;
The board and the plate part which is a part of the holding member are positioned in parallel on both sides with the capacitor interposed therebetween,
The operation member is located behind the capacitor and has two receiving surfaces on both sides avoiding the capacitor, and each holding surface is held by being in contact with each end surface of the substrate and the plate portion. lighting apparatus characterized by that. A flash unit that emits flash,
A columnar capacitor that is placed upright in the center behind the strobe light emitting unit and that is charged and discharged during strobe light emission,
Two boards on which a circuit for controlling the strobe light emission and a switch for changing the strobe light emission mode are mounted;
An operation member for engaging the switch and changing the state of the switch in conjunction with an external operation to switch the strobe emission mode;
A holding member for holding the strobe light emitting unit, the substrate and the capacitor;
The switch is located in a gap between the substrate and the capacitor;
The two substrates are positioned in parallel on both sides of the capacitor,
The operation member is located behind the capacitor and has two receiving surfaces on both sides avoiding the capacitor, and each holding surface is held by contacting each end surface of the two substrates. A lighting device characterized by the above . The operation member is an illumination device according to claim 1 or 2, wherein the two receiving surfaces, characterized in that it is slid in a straight line in a state in which said contact end faces and those.

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