JP3317598B2 - Film unit with lens - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a film unit with a lens.
Respect Tsu door, for more information, recycling properly and the red-eye phenomenon slow
The present invention relates to a film unit with a lens excellent in sum .

[0002]

2. Description of the Related Art A photo film is built in advance,
Some film units with a lens having a simple photographing function include a small and simple strobe device (for example, a product name such as "Sharun is FLASH").
This strobe device includes a strobe light emitting unit including a discharge tube in which xenon (Xe) is sealed, and a circuit board provided with a strobe circuit for emitting light. In order to sell such a film unit with a lens at a low price, most of the production and assembly are automated and streamlined.

The strobe light emitting section includes a discharge tube, a reflector for reflecting light emitted from the discharge tube and condensing it on the object side, and a protector for diffusing light from the discharge tube and the reflector and protecting the discharge tube. It is composed of These are built into a plastic frame member,
This frame member is integrally fixed to the circuit board. Both terminals of the discharge tube and the trigger terminal are soldered to the circuit board via lead wires, and components such as a main capacitor, various transformers, and electric contacts for holding dry batteries are soldered. Such a strobe device is removed when the lens-fitted film unit is collected, and if it can be reused after various functional tests, it is newly incorporated in the lens-fitted film unit and reused.

[0004] In addition, some strobe devices include a conventional electronic flash device.
As described in JP-A-83740, the wiring between the strobe light emitting unit including the protector and the circuit board is a connector wiring, and only the strobe light emitting unit can be easily replaced and recycled. In addition, actual opening flat 3
According to the invention described in Japanese Patent No. -60325, the light emitting unit including the protector and the main condenser can be detached from the camera body without disassembling the camera body, so that recycling work and replacement work at the time of inspection can be easily performed.

[0005]

By the way, based on the inspection data at the time of recycling the flash device, it has been found that the protector and the main capacitor have the highest defect rates among the components constituting the flash device. ing. This is because the protector is easily exposed to scratches and dirt because it is exposed to the outside, and the main capacitor is liable to change with time. Therefore, in order to streamline the recycling of the strobe device, it is preferable that the strobe light emitting portion and the main capacitor can be easily exchanged with the circuit board, and that the strobe device can be automated.

[0006] However, the aforementioned Japanese Utility Model Laid-Open No. 5-83740.
In the device described in the publication, the strobe light emitting portion can be easily replaced, but since the main capacitor is attached to the circuit board by soldering, there is a problem that it takes time to replace the main capacitor. Further, in the device described in Japanese Utility Model Laid-Open No. 60325/1991, since both the strobe light emitting portion and the main capacitor are soldered to the circuit board, it is more troublesome to replace them.

[0007] The film unit with a lens is light and small in size so that it can be easily carried around. However, because of its small size, the distance between the strobe light emitting unit and the photographing lens is short, and the subject's eyes become red when photographing a person. There is a problem that a red-eye phenomenon that emits light easily occurs. In order to prevent the occurrence of this red-eye phenomenon and maintain the compactness of the lens-equipped film unit, a strobe light emitting unit is housed inside the lens-equipped film unit when the strobe device is not used, and the strobe light is emitted when the strobe device is used. It is preferable that the portion protrudes to a position away from the taking lens.

However, each of the strobe devices described in each of the above publications has a structure that is not suitable for making the strobe light emitting portion movable. According to the invention described in Japanese Patent Application Laid-Open No. 5-83740, when the strobe light emitting portion is moved, It is necessary to provide a space for moving the connector wiring. With a small-sized film unit with a lens, it is difficult to provide an excessively large space, and there is a risk of disconnection. Further, in the device described in Japanese Utility Model Laid-Open Publication No. Hei 3-60325, soldering is used for the wiring between the strobe light emitting unit and the circuit board. The entire unit must be moved, and it is impossible to provide a space for moving the light-emitting unit in a small-sized film unit with a lens.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a light emitting unit having a high defect rate and a main capacitor.
With the support it can be easily replaced when recycling, and an object thereof is to provide a film unit which prevents the occurrence of the red-eye effect.

[0010]

In order to solve the above-mentioned problems, a film unit with a lens according to the present invention comprises a light-emitting unit between a use position where the protector is aimed at a subject and a non-use position where the protector is hidden. to rotatably this
Cylindrical main condenser inside the rotation axis of the light emitting unit
It incorporates

A light emitting unit is provided on the inner wall surface of the exterior cover.
A support piece that rotatably supports the holding member
Is provided .

[0012] In addition, between the light emission unit and the circuit board,
A connection means for electrically connecting the main capacitor and the discharge tube to the circuit board is provided.

The holding member houses the main capacitor.
Cylindrical capacitor holding part to house and this capacitor
The discharge tube, the reflector,
The discharge tube holding part that holds the protector is
Formed from plastic parts, this holding member, the discharge tube
For trigger connected to trigger electrode to give trigger
Connected to both conductive members and both electrodes of the main capacitor
Embedded with the charged conductive member
You. The trigger conductive member and the charging conductive member are partially
Exposed to one end of capacitor holding part and switched each
And the connection means is composed of these switching contacts.
And a contact plate fixed facing these switching contacts.
It consists of .

[0014]

In the strobe device, the protector is arranged at a use position where the protector is turned to the subject side during use. In this state, the light emitting unit is exposed from one end of the capacitor holding portion of the holding member, which is constituted by the charging conductive member connected to both electrodes of the main capacitor and the trigger conductive member for triggering the discharge tube. Each of the switched contact pieces is connected to each electrode of a contact plate connected to the charging circuit and the trigger circuit of the circuit board, and is in a state where charging and light emission are possible. When the strobe device is not used, the protector is arranged at a non-use position which is rotated approximately 90 ° from the use position.
This rotation is achieved by a capacitor holding portion formed on a holding member that holds the discharge tube, the reflector, the protector, and the main capacitor and constitutes the light emitting unit, by sliding the outer peripheral walls at both ends thereof into a fixed support piece. Move. In the light emitting unit in this state, each switching contact piece is separated from each electrode of the contact plate, and charging and light emission cannot be performed. As described above, since the connection between the light emitting unit and the circuit board is performed by the contact between the switching contact piece and the contact plate, there is no disconnection. Also, since no soldering is performed between the light emitting unit and the circuit board, the light emitting unit can be easily incorporated into a camera, and the light emitting unit can be easily replaced at the time of recycling.

[0015]

FIG. 2 shows the appearance of a film unit with a lens using the present invention. The lens-fitted film unit 2 is of a type designed to be thinner, and includes a unit body 3 having a built-in photographing mechanism such as a shutter mechanism, and an outer case 4 for housing the same. The outer case 4 has a contour that exposes the hoisting knob 5, the light emitting unit 6, the shutter button 7, and the like incorporated in the unit main body 3.
A hole for exposing the viewfinder 9 and the number-of-photographs display window 10 is provided.

As shown in FIG. 1, the unit main body 3 comprises a main body base 12, an exposure unit 13, a strobe device 14, a rear cover 15 and a front cover 16, which are engaged by claws. It is attached detachably.

The main body 12 is made of opaque plastic, and a light-shielding tube 19 is provided on the optical axis 18. On the back side, there is formed an aperture for determining the exposure range of the photographic film. On both sides of the light shielding tube 19, a patrone storage chamber 20 for storing patrone,
Film roll chamber 2 for storing film in roll form
1 are formed. The front surface of the outer wall of the patrone storage room 20 has a shape protruding forward from the front surface of the outer wall of the film roll room 21.

The rear cover 15 is made of an opaque plastic, and has a film support surface 15a at a portion facing the aperture. On the bottom surface side, pull-top lids 15b and 15c that cover the bottom surfaces of the patrone storage chamber 20 and the film roll chamber 21 are provided, respectively. The cover 15b serves as a take-out cover for taking out the patrone containing the exposed film. A cutout 22 is formed in the upper right part of the rear cover 15 so as not to interfere when the light emitting unit 6 rotates.

The front cover 16 is made of opaque plastic, and has a shutter button 7, a window 1 for displaying the number of shots.
0, notch 2 for exposing light emitting unit 6 to the outside
3 and the like are formed. A projection 24 is formed on the front cover 16 in accordance with the projection of the patrone storage chamber 20, and the projection 24 serves as a grip during photographing.

The exposure unit 13 includes a film winding mechanism and a base 26 formed of an opaque plastic.
A film counter mechanism, a shutter mechanism, and the like are incorporated. The photographing lens 8 is incorporated on the front side of the base 26, and a finder lens pair 27 is incorporated on the top of the base 26.

The strobe device 14 includes the light emitting unit 6 and a circuit board 29. The light emitting unit 6
As shown in FIG. 3, a discharge tube 30 for emitting strobe light,
A reflector 3 disposed on the back side of the discharge tube 30 for reflecting light emitted by the discharge tube 30 and condensing the light toward the front side
1 and a diffusion plate having a front surface for diffusing strobe light are integrally formed.
0, a protector 32 that protects the flashlight, a main capacitor 33 that is charged with a current necessary for strobe light emission, and a plastic reflex case 34 that is a holding member that holds these to unitize them.

The reflex case 34 has a main condenser 3
A capacitor holding portion 36 for holding the discharge tube 3, and a discharge tube holding portion 37 for holding the discharge tube 30, the reflector 31, and the protector 32 are integrally formed on the outer periphery of the capacitor holding portion 36. The capacitor holding portion 36 has an inner diameter portion 36 having substantially the same size as the outer shape of the cylindrical main capacitor 33.
a of the main condenser 33
Is inserted and held in the inner diameter portion 36a.

On the left end surface of the capacitor holding portion 36, a metal contact piece 39 for a positive capacitor, which is a charging conductive member and a trigger conductive member formed by insert molding at the time of forming the reflex case 34, The contact piece 40 and the trigger contact piece 41 protrude. Holes 39a and 40a are formed in the positive-side capacitor contact piece 39 and the negative-side capacitor contact piece 40, respectively. The short cut positive side terminal of the main capacitor 33 is formed in these holes 39a and 40a. 33a and the negative terminal 33b are respectively press-fitted.

Each of the contact pieces 39 to 41 has a circuit board 2
9, a switching contact piece 39b for electrically connecting with the contact of No. 9;
40b and 41a are formed. Since these switching contact pieces 39b, 40b, and 41a come into contact with the contacts of the circuit board 29 while being slightly displaced away from the reflex case 34, the other portions of the contact pieces 39 to 41 are connected to the circuit board 29. There is no contact with the 29 contacts.

Further, from the outer wall of the reflex case 34, a contact piece 43 for the positive discharge tube, a contact piece 44 for the negative discharge tube,
The trigger terminal 45 is exposed. These contact pieces 43
45 are connected to the plus side capacitor contact piece 39, the minus side capacitor contact piece 40, and the trigger contact piece 41, respectively, within the thickness of the reflex case 34. That is, the metal contact piece accommodated in the mold at the time of the insert molding of the reflex case 34 is a first metal contact piece having a plus-side capacitor contact piece 39 and a plus-side discharge tube contact piece 43 formed at both ends, A second metal contact on which the negative capacitor contact piece 40 and the negative discharge tube contact 44 are formed, and a third metal contact on which the trigger contact 41 and the trigger terminal 45 are formed. Become.

In order to assemble the discharge tube 30 and the reflector 31 into the reflection case 34, first insert the reflector 31 into the discharge tube holding portion 37 from the front side, and insert the reflector 31 into the hole 31a from the side of the discharge tube holding portion 37. The discharge tube 30 is inserted as shown in FIG. Thereby, both ends 30 a of the discharge tube 30 are held by the holding pieces 3 formed inside the discharge tube holding portion 37.
7a, the positive terminal 30b and the negative terminal 30c of the discharge tube 30 are pressed against the positive discharge tube contact 43 and the negative discharge tube contact 44, respectively.
The protector 32 is locked by engaging the locked portions 32 a, 32 b, and 32 c with claws formed in the discharge tube holding portion 37 after the discharge tube 30 is assembled.

The circuit board 29 is a board on which electric components constituting the charging circuit and the trigger circuit shown in FIG. 4 are mounted. As shown in FIG. 1, a positive contact piece 48a and a negative contact piece 48b for a dry battery 47 serving as a power supply of the strobe device 14 are attached to a lower portion of the circuit board 29 by soldering. Also, two metal contact pieces 49a, which are arranged on the rotation trajectory of the shutter blade and are contacted by the shutter blade when opened, are provided on the left edge of the circuit board 29.
A synchro switch 49 provided with 49b is attached. Further, on the upper part of the circuit board 29, a contact plate 50 arranged in a direction perpendicular to the circuit board 29 and having a pattern formed to be electrically connected to the switching contacts 39b, 40b, 41a of the light emitting unit 6 is formed. Installed.

As shown in FIG. 5, the contact plate 50 includes a contact portion 52, which is an electrode that contacts the switching contact 40b, a contact portion 53, an electrode that contacts the switching contact 39b, and a switching contact 41a. There is provided a contact portion 54 which is an electrode to be in contact with the contact portion. These contact portions 52 to 54 are in a state where the copper foil is exposed on the surface of the contact plate 50.

The contact portions 52 to 54 are extended to the edges of the contact plate 50 by a pattern formed on the contact plate 50, and are connected to the circuit board 2 by jumpers 55, 56, 57.
9 and is in a state of being held. When the unit body 3 is assembled,
Nipping part 1 in which the edge of contact plate 50 is formed on rear cover 15
Since the contact plate 50 is sandwiched and held between the light emitting units 6d, the contact plate 50 does not shift and move away from the light emitting unit 6 to be disconnected.

In the method of manufacturing the contact plate 50, a notch 50a is provided at a portion corresponding to the lower end of the contact plate 50 of the circuit board 29, and a bent portion V is provided at a portion corresponding to the left edge of the contact plate 50 as shown in FIG. A U-shaped groove 59 is provided. The bent portion may be a perforation or the like. When attaching the electric components to the circuit board 29, the jumper wires 55 to 57 are inserted together and the ends are bent inward, and when the electric components are soldered, the jumper wires 55 to 57 are put together. Is soldered. When the contact plate 50 is bent with respect to the circuit board 29 at the groove 59, the contact plate 50 is bent at the groove 59 and connected to the circuit board 29 as shown in FIG.

When the contact plate 50 is manufactured by such a method, there is no need for positioning or the like as compared with a case where the circuit board 29 and the contact plate 50 are separately manufactured and connected by jumper wires. Since the 29 unnecessary portions are used, there is no waste and the manufacturing cost can be reduced.

The light emitting unit 6 has a use position in which the protector 32 is directed toward the subject as shown in FIG. 2 and a non-use position in which the protector 32 is rotated by approximately 90 ° from the use position as shown in FIG. It is rotatable between. In this unused position, the protector 32 is hidden, so that the protector 32 is not damaged during storage or carrying. FIG.
As shown in FIG.
3 and a pair of support pieces 62 and 63 having semicircular support parts 62a and 63a, and a support piece formed on the rear cover 15 and having support parts 64a and 65a similar to the support pieces 62 and 63. 64, 65, reflex case 3 from front and rear
4 outer peripheral walls 36b, 3 at both ends of the capacitor holding portion 36
6c is sandwiched. Thereby, the light emitting unit 6
It is guided by the support pieces 62 to 65 and rotatably incorporated in the unit body 3. In the rear cover 15, a concave portion 66 having the same diameter as the support portions 64a and 65b is formed between the support pieces 64 and 65.
6 also guides. Thus, the light emitting unit 6
Is suitable for automatic assembly because it is merely sandwiched between the rear cover 15 and the front cover 16.

Further, the strobe device 14 performs charging when the light emitting unit 6 is rotated to the use position. As shown in FIG. 10, when the light emitting unit 6 is in the use position, the switching contact piece 39b of the positive capacitor contact piece 39 contacts the contact portion 53, and the switching contact piece 40b of the negative capacitor contact piece 40 contacts the contact portion 53. The switching contact piece 41 a of the trigger contact piece 41 is brought into contact with the contact portion 5.
4, an electrical connection is made. At this time, the strobe circuit shown in FIG. 4 is closed, and the main capacitor 33 is charged.

The strobe circuit includes an oscillation transistor 69 for converting a direct current of the dry battery 47 into an alternating current, an output transformer 70 for boosting the alternating current to a high voltage, and a rectifier 71 for converting the alternating current to a direct current again. The DC power from the rectifier 71 is supplied to the contact portions 53 and 52 of the contact plate 50.
Is applied to the main capacitor 33 via the switching pieces 39b and 40b. In addition to the main capacitor 33, a trigger capacitor 72 for triggering is also provided. Completion of charging of these capacitors 33 and 72 is notified to the user by turning on the small neon tube 73. Discharge from the trigger capacitor 72 is performed by contact of the contacts 49a and 49b of the synchro switch 49, the voltage is boosted by the trigger transformer 74, and the contact portion 54 of the contact plate 50 and the trigger terminal 45 via the switching contact 41a.
Is applied to At the next moment, part of the xenon gas (Xe) inside the discharge tube 30 is ionized, the internal resistance inside the tube is reduced, and the discharge tube 30 discharges and emits light. The light emission at the use position of the light emitting unit 6 is further away from the photographing lens 8 by an amount protruding from the unit body 3 than the strobe light emitting portion of the conventional film unit with a lens, so that the red-eye effect is reduced.

As shown in FIG. 11, when the light emitting unit 6 is in the non-use position, each switching contact 39b,
The contacts 40b and 41a do not contact the contact portions 53, 52 and 54. In addition, each switching contact piece 39b,
40b and 41a are adapted to come into contact with the respective contact portions 53, 52 and 54 while being displaced toward the contact plate 50, so that the respective contact portions 53, 52 and 54 and the respective contact pieces 3 are shown in the drawing.
Although 9, 40 and 41 overlap, they do not come into contact with each other, and unnecessary charging and light emission are not performed.

If the strobe light emission becomes unnecessary after the charging of the strobe device 14 is completed, the switching contact piece 41a and the contact portion 54 are turned by rotating the light emitting unit 6 to the non-use position. Does not come into contact, so that even if the shutter button 7 is depressed and the synchro switch 49 is operated, no strobe light is emitted. Thereby, overexposure and wasteful use of the dry battery 47 can be prevented. When the light-emitting unit 6 is rotated to the unused position after charging is completed, the connection between the main capacitor 33 and the circuit board 29 is completely cut off. Since there is no leakage to the substrate 29 and only natural discharge occurs, the loss of the current charged in the main capacitor 33 is reduced.

Next, the operation of the above embodiment will be described.
The assembling of the lens-fitted film unit 2 is performed by assembling the exposure unit 13 and the strobe device 14 assembled on another line while the main body base 12 shown in FIG. 1 is being conveyed.

To assemble the light emitting unit 6 of the strobe device 14, a main capacitor 33 is mounted on the capacitor holding portion 36 of the reflex case 34, and the plus terminal 33a and the minus terminal 33b of the main capacitor 33 are insert-molded on the reflex case 34. Holes 39 of the contact piece 39 for the positive capacitor and the contact piece 40 for the negative capacitor
a and the hole 40a. In addition, the discharge tube holder 37
The reflector 31 is housed from the front side, and the discharge tube 30 is inserted into the hole 31a of the reflector 31 from the side. Thereby, the plus side terminal 30a and the minus side terminal 30b of the discharge tube 30 are pressed against the plus side discharge tube contact piece 43 and the minus side discharge tube contact piece 44. The protector 32 is attached to the front side of the discharge tube 30 using the locked parts 32a to 32c.

Further, in assembling the circuit board 29, terminals of various electric components are inserted into holes from the back side of the board on which a pattern for forming a charging circuit and a trigger circuit is formed on the surface. As shown in FIG. 6, jumper wires 55, 56 and 57 are inserted into the holes so as to straddle a V-shaped groove 59 for forming the contact plate 50 from the back side, and both ends are bent inward. And each electric component and jumper wire 5
5, 56 and 57 are collectively soldered. Thereafter, the contact plate 50 is cut into the circuit board 29 using the notch 50a and the groove 59.
Fold it in the vertical direction to the back side. Thereby, as shown in FIG. 7, the contact plate 50 is held on the circuit board 29 by the jumper wire 50 and is in a state of being electrically connected.

In the strobe device 14, a circuit board 29 is removably attached to the front side of the main body 12 by claw engagement. By attaching the circuit board 29 to the front side of the main body base portion 12, the contact plate 50 is sandwiched and positioned by the sandwiching portion 15d formed on the rear cover 15.

Next, a front cover 16 is attached to the main body 12 to which the exposure unit 13 and the circuit board 29 are attached so as to cover the front side. Next, the main body base 12 to which the front cover 16 is attached is transported into a dark room, where a patrone and a film drawn out of the patrone are loaded. In this dark room, the strobe light emitting unit 6
And the mounting of the rear cover 15 is performed, and the unit body 3 is completed. As a result, the support pieces 62 and 63 of the front cover 16, the support pieces 64 and 65 of the rear cover 15, and the recess 66 allow the capacitor holder 3 of the reflex case 34 to be mounted.
The outer peripheral walls 36b, 36c at both ends of the light-emitting unit 6 are sandwiched from front and rear, and the light-emitting unit 6 is rotatable. After that, the unit main body 3 loaded with the dry battery 47 is inspected for a shutter mechanism, a film winding mechanism, a strobe light emission, and the like. Become.

The completed film unit with lens 2
Are sold in gusset bags that provide light shielding and moisture protection. When the film unit with lens 2 is stored in the gusset bag, as shown in FIG.
The light-emitting unit 6 is protected by the protector 3 so that the light-emitting unit 4 is not charged.
2 is rotated to a non-use position where it is hidden. In this state, as shown in FIG. 11, the switching contact pieces 39b to 41a protruding to the side of the light emitting unit 6 do not contact the contact portions 52 to 54 formed on the contact plate 50. As shown, the strobe circuit is open, and the main capacitor 33 is not charged.

The user who purchased the film unit with lens 2 can remove the film unit with lens 2 from the moisture-proof bag.
Is taken out, and the winding knob 5 is rotated to prepare for photographing. After the preparation for photographing is completed, the subject is confirmed by looking through the viewfinder 9 and the shutter button 7 is pressed to perform photographing.

When the brightness of the subject is low, the strobe device 14 is used. The charging of the strobe device 14 is started by rotating the light emitting unit 6 to the use position shown in FIG. In this state, as shown in FIG. 10, the switching contact piece 39 b of the plus-side capacitor contact piece 39 protruding to the side of the light emitting unit 6 and the contact portion 53 of the contact plate 50.
Is the switching contact 4 of the contact 40 for the negative side capacitor.
0b and the contact portion 52 are brought into contact with the switching contact piece 41a of the trigger contact piece 41 and the contact portion 54, respectively.

As shown in FIG. 4, the DC current of the dry battery 47 is converted to AC by an oscillation transistor 69, then boosted to a high voltage by an output transformer 70, and further converted to a DC power by a rectifier 71. The voltage is applied to the main capacitor 33 via the contact portions 53 and 52 of the contact plate 50 and the switching pieces 39b and 40b. When the main capacitor 33 and the trigger capacitor 72 are sufficiently charged,
The small neon tube 73 is turned on to notify the user of the completion of charging.

After the completion of charging is confirmed by turning on the small neon tube 73, the subject is confirmed by the finder 9 and the shutter button 7 is pressed. When the shutter button 7 is pressed, the shutter blades incorporated in the exposure unit 13 rotate to open the optical path from the taking lens 8 to the film. Further, the shutter blade makes the contact pieces 49a and 49b of the synchro switch 49 come into contact at the time of this rotation. Thereby, the charge charged in the trigger capacitor 72 is boosted by the trigger transformer 74 and applied to the trigger terminal 45 via the contact portion 54 of the contact plate 50 and the switching contact piece 41a. At the next moment, a part of the xenon gas inside the discharge tube 30 is ionized, the internal resistance in the tube is reduced, and the discharge tube 30 discharges and emits light.

After the photographing, the winding knob 5 is rotated. If you do not want to continue flash photography,
The light emitting unit 6 is turned to the non-use position shown in FIG. In this way, by rotating the light emitting unit 6 to project from the unit main body 3 at the time of photographing, the distance to the photographing lens becomes longer than that of a flash device used in a conventional film unit with a lens. Be relaxed. After the photographing of all the stored photographic films is completed, the user hands over the film unit 2 with the lens to the developing dealer and requests simultaneous printing. At the developing store, a part of the paper box 4 is torn and the lid 15a is opened,
The patrone containing the film that has been taken is taken out.

The film unit with lens 2 from which the cartridge has been taken out is collected by the manufacturer. The recovered film unit with lens 2 is separated from the paper box 4 and the front cover 16 is removed by the disassembly line. Then, the strobe device 14 and the exposure unit 13 are removed from the main body base 12.

The removed exposure unit 13 and strobe device 14 are transported to their respective function inspection lines. In the inspection of the strobe device 14, a function inspection of the circuit board 29 is performed. In addition, the protector 32 is often scratched or stained, and the main condenser 33 changes greatly with time. Therefore, a new light emitting unit 6 is always used without being reused. It is costly to replace the light emitting unit 6 with a new one every time the film unit 2 with the lens is collected in this way, but it is more expensive than replacing the light emitting unit 6 by removing the soldering like a conventional strobe device. Since the replacement time, replacement equipment and personnel are small, the cost is almost the same.

The exposure unit 13, the circuit board 29, and the new light-emitting unit 6 that have passed the function test are transported to an assembly line. Then, the unit main body 12 is assembled again, the front cover 16 is covered, and the unit main body 3 is formed after the film is loaded and the rear cover 15 is attached. Thereafter, loading of the battery 47 and packaging of the outer cover 4 are performed, and the film unit with lens 2 is completed.

In the above embodiment, the main condenser is charged by rotating the light emitting unit to the use position. However, a separate charge switch is provided as in the conventional film unit with a lens, and the light emitting unit is turned on. The switching contact piece and the contact portion of the contact plate may always be in contact regardless of the use position or the non-use position. According to this, it is possible to change the direction of irradiating the strobe light and perform the bound photographing or the like. Further, a terminal of a main capacitor may be used as a switching contact piece to be brought into contact with a contact portion of a contact plate. Also, the case where the strobe device is used for a film unit with a lens has been described, but the present invention can also be used for a low-cost camera.

[0052]

As described above, the lens according to the present invention has
Since the light-emitting unit is rotatable between a use position and a non-use position, and is arranged at a position away from the taking lens when in the use position, the red-eye effect can be reduced. Further, when the light emitting unit is in the unused position, the protector is not exposed to the outside, so that the protector is not damaged when not in use. Further, the connection between the light emitting unit and the circuit board is made by contact between the switching contact piece protruding from one end of the holding member constituting the light emitting unit and the electrode of the contact plate connected to the circuit board. Therefore, there is no disconnection between the light emitting unit and the circuit board when the light emitting unit is rotated. Also, no soldering work is required for assembling and disassembling the strobe device.
Because it is easy to automate, manufacturing efficiency can be improved. Further, since the main condenser and the protector, which are most deteriorated, are incorporated in the light emitting unit, the light emitting unit may be replaced at the time of recycling, and a high-quality strobe device can always be supplied. In addition, as it was made possible to charge and emit light only when the light emitting unit was in the use position,
If the light emitting unit is rotated to the non-use position even after charging is completed, strobe light emission can be stopped, and overexposure and waste of power can be prevented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a unit main body to which a strobe device of the present invention is applied.

FIG. 2 is an external perspective view of the film unit with a lens when the light emitting unit is at a use position.

FIG. 3 is an exploded perspective view illustrating a configuration of a light emitting unit.

FIG. 4 is a circuit diagram of a strobe device.

FIG. 5 is an explanatory diagram showing a connection method between a light emitting unit and a circuit board.

FIG. 6 is an explanatory diagram showing a method of connecting a contact plate and a circuit board.

FIG. 7 is an explanatory view showing a method of manufacturing a contact plate.

FIG. 8 is an external perspective view of the film unit with a lens when the light emitting unit is at a non-use position.

FIG. 9 is an explanatory view showing a method of supporting the light emitting unit.

FIG. 10 is an explanatory diagram showing a positional relationship between a switching contact piece and a contact portion when the light emitting unit is at a use position.

FIG. 11 is an explanatory diagram showing a positional relationship between a switching contact piece and a contact portion when the light emitting unit is at an unused position.

[Explanation of symbols]

 6 Light Emitting Unit 14 Strobe Device 29 Circuit Board 30 Discharge Tube 31 Reflector 32 Protector 34 Ref Case 36 Capacitor Holder 37 Discharge Tube Holder 39 Positive-side Capacitor Contacts 39b, 40b, 41a Switching Contact 40 Minus-side Capacitor Contact 41 Trigger contact piece 50 Contact plate 52-54 Contact part

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G03B 15/04-15/05 G03B 17/04 G03C 3/00 575

Claims (5)

(57) [Claims] A holding member includes a discharge tube, a reflector for reflecting light emitted from the discharge tube toward a subject, and a protector for condensing light from the discharge tube and the reflector into a predetermined irradiation range. Light emitting unit and cylindrical shape
A film unit having a strobe device including a circuit board on which a strobe circuit including a main capacitor is formed, wherein the light-emitting unit has a use position at which the protector is aimed at a subject, and a non-use position at which the protector is hidden. Between the main unit and the light emitting unit.
A film unit with a lens that incorporates a sensor . 2. A rotatable support that sandwiches the holding member.
The support piece to be held is provided on the inner wall surface of the exterior cover.
The lens-fitted film unit according to claim 1 . 3. Between the front Symbol Luminous unit and the circuit board,
3. A film unit with a lens according to claim 1, further comprising connection means for electrically connecting the main condenser and the discharge tube to the circuit board. 4. The holding member receives a main capacitor.
Cylindrical capacitor holding part to house and this capacitor
The discharge tube, the reflector,
The discharge tube holding part that holds the protector is
It consists of plastic parts.
For trigger connected to trigger electrode to give trigger
Connected to both conductive members and both electrodes of the main capacitor
That the charged charging conductive member is embedded
The film unit with lens according to claim 3,
G. 5. The conductive member for trigger and the conductive member for charging.
Is exposed at one end of the capacitor holder.
A switching contact piece, and the connecting means
And the fixed contacts facing these switching contacts.
The light emitting unit is turned to the use position.
The switching contact piece is rotated to set it on the contact plate.
Characterized by being connected to each of the electrodes
Item 5. A film unit with a lens according to Item 4.