Camera device

Abstract

The invention provides a camera device capable of realizing a light emitting function of a discharge tube with a simple and compact structure. A camera device (1) is provided with: a circuit board (10) having a contact (14) connected to a trigger coil (12); a discharge tube (22) capable of discharging; a housing part (30) that houses the discharge tube (22); a conductive reflector (40) attached to the housing part (30) in a state of being biased toward the housing part (30); and an electric wire (50) having an end portion electrically connected to the contact (14) of the circuit board (10) and a leading end (52) from which a lead wire is exposed. The housing part (30) is mounted on the circuit board (10). The accommodating part (30) is provided with a receiving part (38) for receiving the reflector (40) and side walls (32A, 32B) which are arranged on the side of the receiving part (38) and extend perpendicularly to the circuit board (10). A side wall (32B) of the housing part (30) has a cutout (61) that guides and holds the electric wire (50) into the housing part (30) so that the tip (52) of the electric wire (50) is sandwiched between the reflector (40) and the receiving part (38).

Description

Technical Field

[0001] The present invention relates to a camera device, and more particularly to a camera device having a light-emitting function using discharge in a discharge tube as a light source. Background Art

[0002] Conventionally, there are known camera flashes that use discharge in a discharge tube as a light source (for example, see Patent Document 1). In general, such flashes require not only a circuit for supplying electric charge to both electrodes of the discharge tube, but also a trigger electrode for triggering the discharge in the discharge tube, so that the circuit structure becomes complicated and the structure tends to be large.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2003-107565 Summary of the invention

[0006] Problems to be solved by the invention

[0007] The present invention has been made in view of the above problems in the prior art, and an object of the present invention is to provide a camera device capable of realizing the light-emitting function of a discharge tube with a simple and compact structure.

[0008] Means for solving problems

[0009] According to one embodiment of the present invention, a camera device is provided that can realize the light-emitting function of a discharge tube with a simple and compact structure. The camera device includes: a circuit board having a contact connected to a trigger element; a discharge tube capable of discharging; a storage portion that stores the discharge tube; a conductive reflector that is mounted on the storage portion while being forced toward the storage portion; and an electric wire that has a first end electrically connected to the contact of the circuit board and a second end where the wire is exposed. The storage portion is mounted on the circuit board. The storage portion includes: a receiving portion that receives the reflector; and a side wall that extends perpendicularly to the circuit board on the side of the receiving portion. The side wall of the storage portion includes a first holding portion that guides the electric wire into the interior of the storage portion and holds the electric wire in such a manner that the second end of the electric wire is sandwiched between the reflector and the receiving portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a perspective view showing a camera device in one embodiment of the present invention.

[0011] Figure 2A It is schematically shown Figure 1A front view of a circuit board and a light emitting portion of a camera device is shown.

[0012] Figure 2B yes Figure 2A A top view of the circuit board and the light-emitting portion.

[0013] Figure 2C yes Figure 2A Rear view of the circuit board and light-emitting section.

[0014] Figure 3 yes Figure 1 An exploded perspective view of a circuit board, a light emitting unit, and a flash cover of a camera device is shown.

[0015] Figure 4A yes Figure 2A A three-dimensional view of the storage portion of the light-emitting portion shown.

[0016] Figure 4B yes Figure 4A Front view of the storage section.

[0017] Figure 4C yes Figure 4A Left side view of the storage section.

[0018] Figure 4D yes Figure 4B AA line section view.

[0019] Figure 5A yes Figure 2A A front view of the reflector of the light emitting portion is shown.

[0020] Figure 5B yes Figure 5A BB line cross-sectional view.

[0021] Figure 6 yes Figure 2A A partial cross-sectional view of a circuit board and a light-emitting portion. DETAILED DESCRIPTION

[0022] Below, refer to Figures 1 to 6 Embodiments of the camera device of the present invention are described in detail. Figures 1 to 6 In the present invention, the same or equivalent components are marked with the same reference numerals and repeated descriptions are omitted. Figures 1 to 6 In the following description, unless otherwise specified, terms such as "first" and "second" are used only to distinguish components from each other and do not indicate a specific order or sequence.

[0023] Figure 11 is a perspective view showing a camera device 1 in one embodiment of the present invention. The camera device 1 in this embodiment is, for example, a camera that uses a photo film that is automatically developed after shooting (instant camera), but the present invention can of course be applied to cameras other than such instant cameras. Figure 1 As shown, the camera device 1 includes a front cover 2, a rear cover 3 mounted behind the front cover 2, a top cover 4 sandwiched between the front cover 2 and the rear cover 3, and a lens barrel 8 accommodated inside a cylindrical portion 2A of the front cover 2. A viewfinder window 5 is formed in the front cover 2, and a flash cover 6 is arranged adjacent to the viewfinder window 5.

[0024] In addition, a release button 7 is arranged on the -Z direction side of the viewfinder 5. A discharge slit 4A extending in the X direction is formed in the top cover 4, and the photo film developed after shooting is discharged from the discharge slit 4A. In addition, the lens barrel 8 in this embodiment is configured to be able to extend in the Z direction. A circuit board 10 described later is accommodated in the internal space formed between the front cover 2 and the rear cover 3.

[0025] Figure 2A , Figure 2B as well as Figure 2C The front view, top view and rear view schematically show the circuit board 10 and the light emitting unit 20 mounted on the circuit board 10. Figure 3 FIG. 1 is an exploded perspective view of the circuit board 10, the light emitting unit 20 and the flash lamp cover 6. Figure 3 The +Z direction is referred to as the “front” or “front side”, and the -Z direction is referred to as the “back” or “rear side”.

[0026] like FIG. 2A to FIG. 2C as well as Figure 3 As shown in FIG. 1 , on the rear surface 10A of the circuit board 10, a trigger coil 12 as a trigger element is connected to a pattern wiring (not shown) in the circuit board 10. The pattern wiring connected to the trigger coil 12 includes a contact 14 formed on the front surface 10B of the circuit board 10 (see FIG. 1 ). Figure 3 ), and the end (first end) of the electric wire 50 is connected to the contact point 14 by welding or the like. The coating is removed at the front end 52 (second end) of the electric wire 50 to expose the conductive wire.

[0027] The light emitting unit 20 includes a discharge tube 22 such as a xenon tube capable of discharging, a housing 30 for housing the discharge tube 22, and a conductive reflector 40 mounted on the housing 30. For example, the reflector 40 is formed of stainless steel having a high light reflectivity. The light emitting unit 20 is arranged behind a flash cover 6 formed on the front cover 2, and light generated by the discharge in the discharge tube 22 is emitted as a flash through the flash cover 6 toward the front of the camera device 1. In order to facilitate understanding, the wiring connected to both ends (poles) of the discharge tube 22 is omitted from the illustration.

[0028] Figure 4A is a three-dimensional diagram of the storage unit 30. Figure 4B is the main view, Figure 4C This is the left side view. Figure 4D yes Figure 4B AA line cross-sectional view of the storage part 30. The storage part 30 has: a base 31, which is located on the circuit board 10; side walls 32A and 32B, which extend perpendicularly to the circuit board 10 (towards the +Z direction) from both sides of the base 31 in the X direction; a fixing part 34, which extends from the side wall 32A in the +X direction and is formed with a through insertion hole 33; a bent piece 35, which is located on the +Y direction side and the -Y direction side of the base 31; two hooks 36, which are formed on the rear surface of the base 31; and an extension piece 37, which extends from the side wall 32B in the -X direction. The space surrounded by the base 31, the side walls 32A and 32B of the storage part 30 and the bent piece 35 is a storage space S for storing the discharge tube 22 and the reflector 40.

[0029] The hook portion 36 is inserted into the circuit board 10 through the long hole 16 (see Figure 3 ) and engages with the rear surface 10A of the circuit board 10 (see Figure 2C The fixing screw 24 is inserted through the insertion hole 33 of the fixing portion 34 (see Figure 3 ), the fixing screw 24 is connected to the threaded hole 18 formed in the circuit board 10 (refer to Figure 3 ) are screwed together, thereby fixing the storage portion 30 to the circuit board 10.

[0030] Both ends of the discharge tube 22 are located on the -Z direction side of the bent piece 35, and the bent piece 35 is configured to elastically press the both ends of the discharge tube 22 in the -Z direction. Thus, in this embodiment, the bent piece 35 of the storage portion 30 functions as a biasing portion that elastically biases the discharge tube 22 toward the circuit board 10.

[0031] Figure 5A is a front view of the reflector 40, Figure 5B yes Figure 5A BB line cross-sectional view. Figure 5A and Figure 5BAs shown, the reflector 40 has a reflecting portion 41 disposed in the storage space S of the storage portion 30. Holes 43 for passing the discharge tube 22 are formed on the surfaces of both sides in the Y direction of the reflecting portion 41. In addition, the reflecting portion 41 has a surface curved so as to surround the discharge tube 22, and two supporting portions 44 for supporting the discharge tube 22 from the -Z direction side are formed on the curved surface.

[0032] Back to Figure 4D A receiving portion 38 curved along the curved surface of the reflecting portion 41 of the reflector 40 is formed at the center of the base portion 31 of the storage portion 30 , and the receiving portion 38 receives the reflector 40 stored in the storage space S of the storage portion 30 .

[0033] In such a structure, the bent piece 35 of the storage portion 30 applies force to the discharge tube 22 toward the -Z direction side, that is, the circuit board 10, and the discharge tube 22, which is applied toward the circuit board 10 by the bent piece 35 of the storage portion 30, presses the support portion 44 of the reflector 40 toward the circuit board 10. As a result, the reflecting portion 41 of the reflector 40 is pressed against the receiving portion 38 of the storage portion 30, and the reflector 40 is fixed to the storage portion 30. In this way, the reflector 40 in the present embodiment is fixed to the storage portion 30 while being applied toward the storage portion 30.

[0034] Here, if Figure 4A As shown in FIG. 1 , a notch 61 is formed on the side wall 32B of the storage portion 30 for inserting the power supply wire 50. The width of the notch 61 along the Y direction is about the same as the outer diameter (coating outer diameter) of the power supply wire 50. Therefore, the power supply wire 50 inserted into the notch 61 is held in the notch 61. Figure 4C As shown, protrusions 63 protruding in the Z direction are formed on the opposing surfaces inside the notch 61. By forming such protrusions 63, the protrusions 63 bite into the coating of the electric wire 50 held in the notch 61, so that the electric wire 50 is held in the notch 61 more reliably.

[0035] In addition, if Figure 4A As shown, the extension piece 37 of the storage portion 30 is also formed with a notch 62 for inserting the power supply wire 50. The width of the notch 62 along the X direction is about the same as the outer diameter (coating outer diameter) of the power supply wire 50. Therefore, the power supply wire 50 inserted into the notch 62 is held in the notch 62. Figure 4B As shown, protrusions 64 protruding in the X direction are formed on the opposing surfaces inside the notch 62. By forming such protrusions 64, the protrusions 64 bite into the coating of the electric wire 50 held in the notch 62, so that the electric wire 50 is held in the notch 62 more reliably.

[0036] Figure 6is a partial cross-sectional view of the circuit board 10 and the light emitting unit 20. As described above, the reflector 40 is urged in the -Z direction by the discharge tube 22, and the discharge tube 22 is urged in the -Z direction by the bent piece 35 of the housing 30. Figure 6 As shown, the front end 52 of the electric wire 50 held in the notch 61 of the side wall 32B of the storage portion 30 is sandwiched and fixed between the reflector 40 and the receiving portion 38 of the storage portion 30. At the front end 52 of the electric wire 50, the coating is removed and the lead wire is exposed, so the lead wire of the electric wire 50 is electrically connected to the reflector 40, and the reflector 40 is connected to the trigger coil 12 via the electric wire 50. In this way, the notch 61 of the side wall 32B of the storage portion 30 in the present embodiment functions as a (first) holding portion that guides and holds the electric wire 50 in the storage space S of the storage portion 30 in such a manner that the front end 52 of the electric wire 50 with the lead wire exposed is sandwiched between the reflector 40 and the receiving portion 38.

[0037] In this embodiment, if Figure 4B , Figure 4C as well as Figure 4D As shown, an opening P extending between the side wall 32B and the receiving portion 38 is formed adjacent to the notch 61 of the side wall 32B of the storage portion 30. By forming such an opening P, the position of the front end 52 of the wire 50 can be adjusted through the opening P when the wire 50 is arranged in the storage space S of the storage portion 30.

[0038] In addition, the notch 62 of the extension piece 37 of the storage portion 30 functions as a (second) holding portion for holding the electric wire 50 between the end of the electric wire 50 connected to the contact 14 of the circuit board 10 and the portion held by the notch 61. In this way, the electric wire 50 is held by the notch 62 of the extension piece 37 in addition to the notch 61 of the side wall 32B of the storage portion 30, so that the electric wire 50 can be held more stably.

[0039] It is difficult for solder to adhere to materials such as stainless steel. Therefore, when the reflector 40 is made of stainless steel as described above, it is difficult to directly fix the wire 50 to the reflector 40 by welding. It is conceivable to separately weld the wire to another component such as a conductive plate, and make the conductive plate contact the reflector 40 to connect the reflector to the trigger coil 12. However, in such a method, the wire needs to be connected to the reflector 40 via a separately prepared conductive plate, so the circuit structure becomes complicated, and it is necessary to ensure a space for arranging the conductive plate, so the size of the light emitting unit 20 becomes larger.

[0040] In this regard, in the present embodiment, by sandwiching and holding the front end 52 of the electric wire 50 from which the lead wire is exposed between the reflector 40 and the receiving portion 38 of the storage portion 30, the reflector 40 can be connected to the trigger coil 12 without using an additional component such as a conductive plate. Therefore, the reflector 40 can be used as a trigger electrode without using an additional component such as a conductive plate. As a result, the number of components and space required for the light-emitting function of the discharge tube 22 can be reduced, and the camera device 1 can be made compact with a simple structure.

[0041] As described above, according to one aspect of the present invention, a camera device is provided that can realize the light-emitting function of a discharge tube with a simple and compact structure. Specifically, the camera device of the present invention can have the following structure.

[0042] (Structure 1)

[0043] The camera device comprises: a circuit board having a contact connected to a trigger element; a discharge tube capable of discharging; a storage portion for storing the discharge tube; a conductive reflector mounted on the storage portion while being forced toward the storage portion; and an electric wire having a first end electrically connected to the contact of the circuit board and a second end where the wire is exposed. The storage portion is mounted on the circuit board. The storage portion comprises: a receiving portion for receiving the reflector; and a side wall extending perpendicularly to the circuit board on the side of the receiving portion. The side wall of the storage portion comprises a first holding portion for guiding the electric wire into the storage portion and holding the electric wire in such a manner that the second end of the electric wire is sandwiched between the reflector and the receiving portion.

[0044] According to such a structure, the second end of the electric wire where the lead wire is exposed is sandwiched between the conductive reflector and the receiving portion of the storage portion, so that the electric wire is held, and thus the lead wire of the electric wire can be directly electrically connected to the reflector. Therefore, for example, the reflector can be used as a trigger electrode without passing through other components such as a conductive plate. Therefore, the number of components and space required for the light-emitting function of the discharge tube can be reduced, and thus the camera device can be made compact with a simple structure.

[0045] (Structure 2)

[0046] In the above-mentioned structure 1, an opening extending between the side wall of the storage portion and the receiving portion may be formed adjacent to the first holding portion of the side wall of the storage portion. By forming such an opening, the position of the second end of the wire can be adjusted through the opening when the wire is arranged inside the storage portion.

[0047] (Structure 3)

[0048] In the above-mentioned structure 1 or 2, the above-mentioned storage part may have a second holding part, and the second holding part holds the above-mentioned electric wire between the above-mentioned first end part and the part held by the above-mentioned first holding part. By holding the electric wire by using the second holding part in addition to the first holding part, the electric wire can be held more stably.

[0049] (Structure 4)

[0050] In any of the above structures 1 to 3, the housing may include a force-applying portion that elastically applies force to the discharge tube toward the circuit board. The reflecting portion of the reflector may also include a supporting portion that supports the discharge tube between the circuit board and the discharge tube. According to such a structure, the force-applying portion of the housing applies force to the discharge tube toward the circuit board, and the discharge tube that is forced toward the circuit board presses the supporting portion of the reflector toward the circuit board, thereby fixing the reflector relative to the housing.

[0051] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can of course be implemented in various different forms within the scope of the technical concept.

[0052] This application claims priority based on Japanese Patent Application No. 2022-130266 filed on August 17, 2022. The disclosure of the application is incorporated in its entirety into this specification by reference.

[0053] Industrial Applicability

[0054] The present invention is suitable for use in a camera device having a light-emitting function using discharge in a discharge tube as a light source.

[0055] Description of symbols

[0056] 1: camera device; 2: front cover; 3: rear cover; 4: top cover; 6: flash cover; 10: circuit board; 12: trigger coil; 14: contact; 16: long hole; 18: threaded hole; 20: light-emitting part; 22: discharge tube; 24: fixing screw; 30: storage part; 31: base; 32A, 32B: side walls; 33: insertion hole; 34: fixing part; 35: bending piece; 36: hook; 37: extension piece; 38: receiving part; 40: reflector; 41: reflecting part; 44: supporting part; 50: electric wire; 52: front end (second end); 61: notch (first retaining part); 62: notch (second retaining part); 63, 64: protrusions; P: opening; S: storage space.

Claims

1. A camera device comprising: A circuit board having contacts connected to the trigger element; A discharge tube capable of discharging a discharge; a storage portion for storing the discharge tube, and the storage portion is mounted on the circuit board; a conductive reflector mounted on the housing portion while being biased toward the housing portion; as well as an electric wire having a first end electrically connected to the contact point of the circuit board and a second end where the conductor is exposed, The storage portion has: a receiving portion receiving the reflector; and A side wall extending perpendicularly to the circuit board at the side of the receiving portion, The side wall of the housing portion includes a first holding portion that guides the electric wire into the housing portion and holds the electric wire so that the second end portion of the electric wire is sandwiched between the reflector and the receiving portion.

2. The camera device according to claim 1, wherein: An opening extending between the side wall of the storage portion and the receiving portion is formed adjacent to the first holding portion of the side wall of the storage portion.

3. The camera device according to claim 1, wherein: The housing portion includes a second holding portion that holds the electric wire between the first end portion of the electric wire and a portion held by the first holding portion.

4. The camera device according to claim 1, wherein: The storage portion has a force applying portion, which elastically applies force to the discharge tube toward the circuit board. The reflecting portion of the reflector includes a supporting portion that supports the discharge tube between the circuit board and the discharge tube.

Images