JPH08211480A - Film unit with lens - Google Patents

Abstract

PURPOSE: To provide a film unit with lens having a photographing data imprinting function capable of imprinting data designating a printing mode in photographic film where photographic frames having a different aimed printing range coexist at low cost. CONSTITUTION: A data optical path shutter 48 retreats from a photographing data optical path 13 by the turning of a shutter blade, and external light entering the one end surface of the photographing data optical path 13 from a lighting part reaches a first bent part 13a. The external light bent downward by the reflection surface 75a of a battery armature 75 at the first bent part 13a reaches a second bent part 13b and is made incident on the outer barrel 74a of a dry battery 74. The external light reaching and bent by the outer barrel 74a of the dry battery 74 passes a photographing data diaphragm 76, so that it is limited to be the square of a specified size. Then, the external light reaches the photographic film 34b, and a printing mark is recorded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens-fitted photo film unit having a photo data imprinting device for exposing photo data indicating a print range of a photo film onto the photo film.

[0002]

2. Description of the Related Art In recent years, in order to expand the appeal and enjoyment of printed photographs to general users, printed photographs with different aspect ratios are provided depending on the type and size of the subject photographed by the camera or the film unit with lens. Has been done. As such a print photograph, C size print (89 mm x 127 m), which is a conventional standard size, is used.
In addition to m), panoramic prints (89 mm × 252 mm) having a doubled horizontal length, high-definition prints (89 mm × 158 mm) that approximate the aspect ratio in high-definition television broadcasting, etc. are generally known.

As a method of obtaining such print photographs having different aspect ratios, a light-shielding plate provided on a camera or a lens-fitted film unit is used to control the exposure range of a photo film while taking one photo film. Exposure range of C size (24mm
X 36 mm), panorama print exposure range (13 mm x
36mm), and high-definition print exposure range (20
(mm × 36 mm) is set, and a print in each mode described above is obtained from the negative film having a different exposure range obtained thereby.

However, in the above-described method of changing the exposure range, it is necessary to newly add a light shield plate, a switching mechanism for switching the light shield plate, etc. to the conventional camera or film unit with lens, which increases the manufacturing cost. Is inevitable. In particular, in a compact camera or a film unit with a lens, which is characterized by low price, the increase in manufacturing cost is a big problem.

Therefore, as a method for obtaining a print photograph of each mode without adding a new mechanism to the conventional camera or lens-fitted film unit, a single exposure with a fixed exposure range for the photograph film is taken at the time of photographing. A method is available in which all the shot frames are shot in the range and only the same range as the exposure range of each shooting mode as described above is printed at the time of printing, so that a print photograph similar to the above-described shooting by switching the exposure range can be obtained. It is considered.

However, when changing the print range of a photographic film shot in a single exposure range to several modes as described above and printing, the print mode desired by the user is set to 1 at the time of print request. Since it is necessary to record each frame, it is not only complicated but there is a possibility that the print mode may be wrongly printed.

Therefore, in Japanese Patent Application No. 6-305056 filed by the present applicant, a plurality of photographing data optical paths for guiding external light to the photographic film and a visual field switching mechanism for switching the visual field range of the finder are interlocked. And an image data imprinting device provided with a data optical path switching plate that shields a predetermined image data path and a data optical shutter that is inserted into and removed from the image data optical path in conjunction with the operation of a shutter mechanism having shutter blades. Is proposed.

[0008]

However, when the above-mentioned photographing data imprinting device is to be mounted on a lens-fitted film unit having a built-in strobe device,
The dry battery that drives the strobe device and the optical path of the photographing data overlap in terms of layout, and it is extremely difficult to mount them. Also,
In the case of a lens-fitted photo film unit with a built-in strobe device, of course, it is considered that shooting is mainly performed in a dark place with little external light, so the amount of external light guided to the photo film is insufficient for imprinting shooting data. Probability is high.

However, in order to avoid the overlap between the dry battery and the optical path of the photographing data, or to make up for the shortage of the amount of outside light, a new LED or the like dedicated for photographing the photographing data is newly provided, which is characterized by low cost. The manufacturing cost of the single lens-fitted film unit increases, which is a serious problem.

The present invention has been made in consideration of the above circumstances, and a photographed data copy capable of imprinting data indicating a print mode on a photographic film in which photographed frames having different print ranges are mixed. It is an object of the present invention to provide a lens-fitted film unit having a built-in function at low cost.

[0011]

In order to achieve the above-mentioned object, the present invention provides a lens-fitted film unit which collects the external light from the front surface of the lens-fitted film unit and the external light collected from the light-collection unit. The optical data path with multiple bends with reflective surfaces that guides to the photographic film by avoiding the components that make up the photo film and exposes the print marks at the bottom of the frame. And a photographing data imprinting device including a data optical path shutter.

According to a second aspect of the present invention, in the film unit with the lens, the light-collecting section for collecting the outside light and the reflection data provided on the battery contact piece for holding the dry battery are guided to the photographic film. Shooting data imprinting consisting of an optical path, a data optical path switching plate that blocks the shooting data optical path in conjunction with the viewfinder switching mechanism of the viewfinder, and a data optical shutter that is inserted into and removed from the shooting data optical path in conjunction with the operation of the shutter mechanism A device is provided.

According to a third aspect of the present invention, the lens-fitted film unit includes a daylighting section for taking in external light, and an optical path for photographing data which reflects the external light taken in from the daylighting section to the outer tube of the dry battery and guides it to the photographic film. Provided is a photographing data imprinting device including a data optical path switching plate that shields the photographing data optical path in conjunction with the viewfinder switching mechanism of the finder and a data optical path shutter that is inserted into and removed from the photographing data optical path in conjunction with the operation of the shutter mechanism. It is a thing. In claim 4,
These light collecting parts are light guide members formed integrally with the taking lens.

In the fifth aspect of the present invention, the lens-fitted film unit reflects the stroboscopic light emitted from the flash discharge tube of the stroboscopic device to the outer tube of the condenser and guides it to the photographic film, and the viewfinder switching mechanism of the viewfinder. And a data optical path switching plate which shields the optical path of the imaging data in conjunction with the above, and an imaging data imprinting device including a data optical path shutter which is inserted into and removed from the imaging data optical path in conjunction with the operation of the shutter mechanism.

In the sixth aspect of the present invention, the lens-fitted film unit reflects the strobe light emitted from the flash discharge tube of the strobe device on the outer surface of the dry battery or the reflecting surface provided on the battery contact piece holding the dry battery. The shooting data optical path that leads to the photo film, the data optical path switching plate that blocks the shooting data optical path in conjunction with the viewfinder switching mechanism, and the data optical path that is inserted into and removed from the shooting data optical path in conjunction with the operation of the shutter mechanism. A photographing data imprinting device including a shutter is provided.

According to a seventh aspect of the invention, these data optical path shutters are directly driven by the shutter blades of the shutter device. In the eighth aspect, the data optical path shutter is provided near the end of the photographic data optical path on the photographic film side. A photographing data diaphragm for imprinting photographing data of an arbitrary shape is provided.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is an external perspective view of a lens-fitted film unit incorporating a strobe device embodying the present invention. FIG. 3 is an exploded perspective view of the lens-fitted film unit shown in FIG. The lens-fitted film unit 1 is roughly divided into a unit body 6 including a body portion 3, a strobe device 2, a front cover 4 and a rear cover 5, and a paper box 7 covering the outer surface of the unit body 6. Further, a shutter mechanism 8, a field-of-view switching mechanism 9, and a photographing data imprinting device 11 are incorporated in the unit body 6.

On the upper surface of the front cover 4, there are provided an opening 12a for exposing a part of the number-of-shots display plate 12 constituting the shutter mechanism 8 and a release button 10.
On the left side of the front surface of the front cover 4, as shown in FIG. 4, the photographing data optical path 1 which constitutes the photographing data imprinting device 11 is formed.
3. A data optical path switching plate 14 is provided.

The photographing data optical path 13 is a hollow tubular optical path for transmitting external light incident from a daylighting section 26 provided on a cover plate 30 described later, and as shown in FIG.
It is divided into two with a data optical path shutter 48 described later as a boundary. Then, the one end surface of the data optical path 13 is a photographic film 3
4b just before the photosensitive surface, and the other end surface is the lighting unit 2
6 exposed to the outside. Data optical path switching plate 14
Is rotatably attached by a shaft 14a and is urged counterclockwise by a spring 16.

A visual field switching plate 17 constituting a visual field switching mechanism 9 is provided on the upper front surface of the front cover 4. The visual field switching plate 17 has a high-definition print mode (print size 89 mm × 158) provided on the unit body 6.
mm) aspect ratio 18 compatible viewfinder
The field of view is limited according to the print mode, and the panoramic field opening 1 corresponding to the panoramic print mode (print size 89 mm × 252 mm) is provided at the center.
9 are provided. Further, an operation protrusion 22 for operating the visual field switching plate 17 is provided on the lower left side of the panoramic visual field opening 19.
Is provided.

A contact portion 17a is provided on the lower right portion of the visual field switching plate 17.
The contact portion 17a contacts the arm portion 14b of the data optical path switching plate 14 according to the movement of the visual field switching plate 17, and rotates the data optical path switching plate 14. With such a mechanism, when the operation protrusion 22 of the visual field switching plate 17 is set to the high-definition position of FIG. 2, the visual field switching plate 17 is moved to the right side of the finder 18 as shown in FIG. 6 (A). Since the front surface of the finder 18 is not obstructed at all, the field of view of the finder 18 corresponds to the high-definition mode with an aspect ratio of 16: 9.
At the same time, the arm 1 of the data optical path switching plate 14
Since 4b contacts the contact portion 17a of the visual field switching plate 17, it rotates clockwise against the bias of the spring 16 and closes the photographing data optical path 13 in a light-tight manner.

As shown in FIG. 6B, the visual field switching plate 17
When the operation protrusion 22 is set to the panoramic position, the front of the finder 18 is covered with the panoramic field opening 19, and the field of view of the finder 18 is limited to the field corresponding to the panoramic print mode. At the same time, since the data optical path switching plate 14 does not come into contact with the visual field switching plate 17 at all, the data optical path switching plate 14 is pulled by the spring 16 and rotates counterclockwise, so that the imaging data optical path 13 is blocked by the data optical path switching plate 14. It is exposed without being exposed.

The cover plate 3 is provided on the front surface of the front cover 4.
0 is attached. The cover plate 30 has an opening 30a corresponding to the finder 18 and an operation protrusion 22.
And a groove 30b for exposing the. Further, around the groove 30b, a display indicating the position of the operation protrusion 22 when setting each print mode is provided. By mounting such a cover plate 30 on the front surface of the front cover 4, the visual field switching plate 17 is pressed from the front surface so that the visual field switching plate 17 does not fall off. Further, at the bottom of the cover plate 30, the optical path of the photographing data 1
A light collecting portion 26 is provided to expose the respective end faces of No. 3 of FIG. By exposing one end surface of the photographing data optical path 13 from the light collecting unit 26 to the outer surface, the photographing data optical path 13 is exposed.
External light is introduced into.

The main body 3 has a cartridge chamber 31 on the left side,
Photo film chambers 32 are provided on the right side, and an aperture opening 33 is provided at the center. Patrone room 3
1 is a photo film patrone 34 patrone 34
a, and the photo film chamber 32 has a cartridge 34a.
Rolled photo film 34b drawn from the photo film 34b
Are stored respectively.

Further, at the upper part of the cartridge chamber 31, there is provided a winding knob 35 which meshes with the spool 34c pivotally mounted on the cartridge 34a and winds the photographic film 34b into the cartridge 34a. The photographic film cartridge 34 used in the present embodiment has a new format in which two perforations are provided for one frame and a shutter is provided at the film entrance / exit of the cartridge, which has already been proposed by the applicant. The photo film cartridge 34 is used (see FIG. 7).

The strobe device 2 is attached to the upper right portion of the main body 3. The strobe device 2 includes a condenser 71,
The circuit board 73 has a flash discharge tube 72 and the like attached thereto, a dry battery 74 for driving the strobe device 2, and a battery contact piece 75 for holding the dry battery 74. The battery contact piece 75 and the dry battery 74 also serve as a reflecting surface for efficiently guiding the outside light entering the bent photographing data optical path 13 to the photographic film 34b.

On the front surface of the main body 3, as shown in FIG.
A shutter mechanism 8 incorporating a part of the photographing data imprinting device 11 is attached. The shutter mechanism 8 includes a shutter blade 36, a well-known shutter device 38 having a kick-off lever 37 and the like, a finder 18 having finder lenses 39a and 39b, a taking lens 41, a charge belt 42, a coil spring 43, an aperture section 44, and an image number display section. It is composed of a plate 12 and the like.

Below the shutter mechanism 8, a photographing data optical path 13 which is a part of the photographing data imprinting device 11 and a data optical path shutter 48 are provided. As described above, the data optical path shutter 48 is designed to enter the space between the two photographic data optical paths 13 when not operating, and prevents the photographic data optical path 13 from being guided. An elongated hole 48a and a protrusion 48b are provided above the data optical path shutter 48, and a shaft 49 penetrating into the elongated hole 48a is rotatably mounted within the elongated hole 48a.
The spring 51 urges the entire body clockwise.

With these mechanisms, as shown in FIG.
When the shutter device 38 operates to rotate the shutter blade 36 in the clockwise direction, the engagement protrusion 36 a provided integrally with the shutter blade 36 causes the protrusion 48 of the data optical path shutter 48 to move.
Move b counterclockwise. Then, the data optical path shutter 48 rotates counterclockwise against the bias of the spring 51,
The photographic data optical path 13 is retracted from the two halves, and the photographic data optical path 13 is guided.

Since the spring 51 has a weaker biasing force than the spring 52 which biases the shutter blade 36, after the data optical path shutter 48 is opened, the shutter blade 36 returns to the beginning and the data optical path shutter 48 is opened. Is returned along the elongated hole 48a by the biasing force of the spring 51 to the non-operating position after the shutter blade 36 has returned.

The photographing data optical path 13 passes through the data optical path shutter 48, passes through the upper portion of the dry battery 74, reaches the battery contact piece 75, and is bent downward. This shooting data optical path 1
In the third bent portion 13a of No. 3, the reflecting surface 75a of the battery contact piece 75 inclined at 45 degrees is exposed in the tube of the photographing data optical path 13. The battery contact piece 75 is entirely plated with nickel to efficiently reflect light. As a result, external light that has entered due to the opening of the data optical path shutter 48 is reflected downward by the reflecting surface 75a.

The photographing data optical path 13 bent downward at the first bent portion 13a is bent again horizontally near the dry cell 74. In the second bent portion 13b of the photographing data optical path 13, a part of the outer cylinder 74a of the dry cell 74 is exposed inside the tube of the photographing data optical path 13. As a result, the external light reflected downward by the reflecting surface 75a strikes the outer cylinder 74a of the dry cell 74 and is reflected again in the horizontal direction.

Photographing data Photographic film 34b of optical path 13
In the vicinity of the end face on the side, the external light reflected by the outer cylinder 74a of the dry cell 74 at the second bent portion 13b and entering is exposed as a print mark on the photographic film 34b into a quadrangle of a certain size. Further, a photographing data diaphragm 76 that limits the inner diameter of the photographing data optical path 13 is provided.

With the structure of the photographing data optical path 13 as described above, the external light entering from the daylighting section 26 receives the first bending section 13.
a, the reflection surface 75a of the battery contact piece 75 exposed in the photographing data optical path 13 at the second bent portion 13b, the outer cylinder 74a of the dry battery 74, and the light reflected by the dry battery 74 disposed at the bottom of the unit main body 6. Avoid photo film 34
After reaching the b side, the print data diaphragm 76 limits the size of the quadrangle to a certain size and exposes the print mark on the side surface of the photographic film 34b.

The operation of the lens-fitted film unit configured as described above will be described. When using the lens-fitted film unit 1 of the present invention, first, the winding knob 35 is rotated to wind up the first frame 61 of the photographic film 34b until it is set at the position of the aperture opening 33. At this time, the two-toothed tooth portion 42a provided on the charge belt 42 meshes with the two-hole perforations of the photographic film 34b to rotate, and the shutter device 38 is charged.

Next, the photographer selects the print mode by operating the operation projection 22 according to the subject and his / her preference. At this time, for example, when the panoramic print mode is selected by sliding the operation protrusion 22 to the left end, as shown in FIG. 6B, the front of the viewfinder 18 corresponding to the high-definition print mode is displayed in the panoramic view opening of the view switching plate 17. 19 will be covered. Therefore, the field of view of the finder 18 is blocked by a certain width above and below corresponding to the panoramic print, and changes to the field of the panorama print mode.

Since the data optical path switching plate 14 does not contact the contact portion 17a of the visual field switching plate 17 at all, the spring 1
It is pulled by 6 and rotates counterclockwise. This allows
The end surface of the photographing data optical path 13 is exposed from the lighting portion 26 provided under the cover plate 26 without being blocked by the data optical path switching plate 14, and external light is guided to the front surface of the data optical path shutter 48 through the photographing data optical path 13. Be freaked out.

After selecting the print mode, the photographer looks into the viewfinder 18 to confirm that the intended subject is within the panoramic field opening 19, and then gently presses the release button 10. Then, the shutter device 38 operates to rotate the shutter blades 36 in the clockwise direction, and the subject image is exposed on the first frame 61 of the photographic film 34b.

Simultaneously with the exposure of the subject image on the photographic film 34b, the shutter blade 36 is rotated in the clockwise direction so that the engaging projection 36a provided integrally with the shutter blade 36 as shown in FIG. The data optical path shutter 48 is brought into contact with the protrusion 48b and moved counterclockwise. As a result, the data optical path shutter 48 rotates counterclockwise against the bias of the spring 51, and retracts from the photographic data optical path 13 divided into two parts. When the data optical path shutter 48 is retracted from the shooting data optical path 13, the shooting data optical path 1 is output from the lighting unit 26.
External light that has entered one end surface of 3 reaches the first bent portion 13a.

A first bent portion 13a is formed in the photographing data optical path 13.
The external light reaching up to this point is reflected at the reflecting surface 7 of the battery contact piece 75 exposed in the tube of the photographing data optical path 13 at the first bent portion 13a.
5a is irradiated. External light that has been nickel-plated and is incident on the reflecting surface 75a having a high reflection efficiency is bent downward by 90 degrees.

The outside light bent downward at the first bent portion 13a reaches the second bent portion 13b this time. Here, a part of the external light is incident on the outer cylinder 74a of the dry battery 74 exposed in the tube of the photographing data optical path 13. The external light that hits the outer cylinder 74a of the dry cell 74 is bent again by 90 degrees and reflected in the horizontal direction.

The external light reflected by the outer cylinder 74a of the dry battery 74 passes through the photographing data diaphragm 76 provided in the vicinity of the end surface of the photographing data optical path 13 on the side of the photographic film 34b to correspond to the panoramic print mark 63.
Limited to a square of a certain size. Then, external light reaches the photographic film 34b, and as shown in FIG. 8, a quadrangle of approximately the same size as the cross section of the photographic data diaphragm 76 is exposed white on the lower end portion of the subject image of the first frame 61 of the photographic film 34b. The panorama print mark 63 is recorded. After that, immediately after the shutter blades 36 have returned, the data optical path shutter 48 is urged by the spring 51 to allow the elongated hole 48 to be released.
Return to the inoperative position along a.

In this way, the photographing for one frame for which the panoramic print is designated is completed. Next, for example, when high-definition print is designated and shooting is performed, the winding knob 35 is rotated again to wind up until the Nth frame 65 of the photographic film 34b is set at the position of the aperture opening 33. Then, this time, the operation protrusion 22 is slid to the high-definition position at the right end of the groove 30b.

Then, as shown in FIG. 6A, the visual field switching plate 17 is completely retracted from the front surface of the finder 18, and the finder 18 has a visual field corresponding to the original high-definition print mode. By this switching, the arm portion 14b of the data optical path switching plate 14 comes into contact with the contact portion 17a of the visual field switching plate 17 this time, and the arm portion 14b rotates counterclockwise against the bias of the spring 16 by that amount, and the image is taken. The data optical path 13 is completely blocked.

Therefore, when the shutter button 38 is operated by pressing the release button 10, a subject image is exposed on the Nth frame 65 of the photographic film 34b, but the data optical path shutter 48 is interlocked with the opening and closing of the shutter blades 36. Even when is opened or closed, since the external light incident from the light collecting section 26 is blocked by the data optical path switching plate 14, the external light is not guided to the end surface on the side of the photographic film 34b, so that no print mark is recorded.

In this way, when a lens-equipped film unit 1 having a different print mode designation for each frame is requested to be printed at a developing shop or the like in one photo film cartridge 34, the developing shop is required to do so each time. Even if the user does not record the print mode designation for each frame, high-definition, and panorama, the development process can be performed as it is. At the time of printing, the operator visually confirms the lower side of the film negative, and if the shooting marks are not exposed on the lower side of each shooting frame, print them in high-definition size on photographic paper and expose the panoramic shooting marks 63. The captured frames need only be printed on photographic paper in panoramic size.

Further, in a large-scale photo lab where the photographic film is automatically processed from development to printing, after the photographic film is developed, the lower side of the photographic film is scanned by a simple sensor and the panoramic print mark 63 is detected. Since it is only necessary to change the size to print on the photographic paper and the cutting position of the photographic paper that have been taken, it is possible to automatically process photo films with a combination of high-definition and panorama print mode specifications at an extremely low cost. Become.

Next, an embodiment of a film unit with a lens using a built-in strobe device as a light source for imprinting photographed data will be described. FIG.
It is sectional drawing of the film unit with a lens of this 2nd Example. The photographing data optical path 83 of the photographing data imprinting device 82 provided on the lens-fitted film unit 81 is
One end is connected to a daylighting section 87 provided on the back surface of a reflector 86 that is provided around the flash discharge tube 85 of the strobe device 84.

The other end of the photographing data optical path 83 passes through the data optical path switching plate 88, the first bending portion 89, the data optical path shutter 91, the second bending portion 92, and the photographing data diaphragm 93, and then the photographic film 94. It has reached the bottom of the photosensitive surface. The lighting portion 87 is a portion in which the back surface of the reflector 86 is partially cut away and is connected to one end of the photographing data optical path 83. Of the strobe light emitted from the flash discharge tube 85, one of the strobe light emitted toward the reflector 86 is included. Part is introduced into the photographing data optical path 83.

The data optical path switching plate 88 is interlocked with a visual field switching mechanism (not shown) having the same structure as that of the previous embodiment, and is inserted into the imaging data optical path 83 in the high-definition imaging mode corresponding to the aperture 95. Shooting data optical path 8
3 is cut off, and in the panoramic shooting mode, the shooting data optical path 83 is retracted and the shooting data optical path 83 is opened. The photographing data optical path 83 is bent downward at the first bending portion 89. The first bent portion 8 of this photographing data optical path 13
9, the condenser 9 that constitutes the strobe device 84
The outer cylinder 7 is exposed inside the tube of the photographing data optical path 13. As a result, the strobe light entering through the daylighting section 87 is reflected downward by the first bending section 89.

The data optical path shutter 91 is interlocked with the shutter mechanism 98 having the same structure as that of the previous embodiment.
Only during the period when 8 is operating, the photographing data optical path 83 is evacuated and the photographing data optical path 83 is opened. Second bent part 9
At 2, the photographing data optical path 83 is bent again in the horizontal direction. In the second bending portion 92 of this photographing data optical path 83,
The outer cylinder of the dry battery 99, which constitutes the strobe device 96,
It is exposed in the tube of the photographing data optical path 83. As a result, the strobe light reflected downward by the outer cylinder of the condenser 97 strikes the outer cylinder of the dry cell 99 at the second bent portion 92 and is reflected again in the horizontal direction.

In the lens-fitted film unit 81 having such a structure, for example, when a panoramic shooting mode is designated and a picture is taken, first, the data optical path switching plate 88 shoots in conjunction with a visual field switching mechanism (not shown). Evacuate from the data optical path 83. Then, when the release operation of the lens-fitted film unit 81 is performed, the shutter mechanism 98 operates to expose the subject image on the photographic film 94, and at the same time, the data optical path shutter 91 operates in conjunction with the shutter mechanism 98 from the photographic data optical path 83. evacuate.

Simultaneously with this release operation, the strobe device 84 operates, the electric charge accumulated in the condenser 97 flows into the flash discharge tube 85, and the flash discharge tube 85 illuminates the subject by strobe light. Then, a part of the strobe light enters the photographing data optical path 83 from the lighting unit 87. The strobe light that has entered the photographing data optical path 83 enters the outer cylinder of the condenser 97 at the first bent portion 89 and is reflected downward.

The strobe light reflected by the outer cylinder of the condenser 97 reaches the second bent portion 92 through the vicinity of the data optical path shutter 91 retracted from the photographing data optical path 83 in association with the shutter mechanism 98. Then, the strobe light enters the outer cylinder of the dry battery 99 and is reflected again in the horizontal direction. The strobe light reflected by the outer cylinder of the dry battery 99 passes through the photographing data diaphragm 93 provided near the end surface of the photographing data optical path 83 on the side of the photographic film 94, so that the stroboscopic light of a certain size corresponds to the panoramic print mark. Limited to rectangles. Then, the stroboscopic light reaches the photographic film 94, and a quadrangle of approximately the same size as the section of the photographic data diaphragm 93 is exposed in white, and a panoramic print mark is recorded.

As described above, since the lens-fitted photo film unit of this embodiment uses the strobe device 84 built in as a light source for imprinting photographing data, the amount of external light for stroboscopic photographing is small. Even under the shooting conditions, the panoramic print mark designating the panoramic print is clearly exposed on the photographic film 94. In addition, the photographing data optical path 8 for guiding the strobe light to the photographic film 94
Since the condenser 97 and the outer cylinder of the dry battery 99 are also used as the reflecting surface of the strobe light in the bent portion of 3, it is not necessary to newly provide a reflecting surface such as a mirror in the photographing data imprinting device 82, which is extremely low cost. It is possible to manufacture the lens-fitted film unit 81 having a photographing data imprinting function.

In addition to the two embodiments described above, like the lens-fitted film unit 101 shown in FIG. 10, the taking lens 102, the daylighting section 103, and the taking data optical path 104 are integrated by a light guide member such as resin. It is also possible to imprint the photographed data indicating the print mode on the photographic film 105.

In each of the above embodiments, the high-definition print mode and the panorama print mode are selected as the print modes, but of course, other than this, it can be used to identify the print mode designation of C size or arbitrary size. Is.

Further, in the above-mentioned embodiment, a dry battery for a strobe device or a battery contact piece is used as a reflection surface for reflecting external light or strobe light at the bent portion of the optical path of photographing data. In addition to this, as the reflection surface, for example, a dry battery for a winder which is a photographic film winding device, or a battery contact piece, it is also possible to use various parts constituting a film unit with a lens, a dry battery,
Alternatively, it is not particularly limited to a device or the like in which the battery contact piece is used.

[0059]

As described above, according to the lens-fitted photo film unit of the present invention, the lens-fitted photo film unit is provided on the light-collecting section for collecting external light and the battery contact piece for holding the external light. The shooting data optical path that reflects the light to the photo film and guides it to the photographic film, the data optical path switching plate that blocks the shooting data optical path in conjunction with the viewfinder field switching mechanism, and the insertion / removal in the shooting data optical path in conjunction with the operation of the shutter mechanism. Since a shooting data imprinting device including a data optical path shutter is provided, it is possible to imprint the data indicating the print mode on a photo film in which shooting frames with different target print ranges are mixed. It is now possible to provide a lens-fitted film unit with a copy function at a low cost.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a lens-fitted film unit embodying the present invention.

FIG. 2 is an external perspective view showing a lens-fitted film unit embodying the present invention.

FIG. 3 is an exploded perspective view of FIG. 2;

FIG. 4 is an exploded perspective view showing the vicinity of the front cover of FIG.

5 is an exploded perspective view showing the vicinity of the shutter mechanism of FIG. 2. FIG.

FIG. 6 is an explanatory view showing the vicinity of the front cover of FIG.

FIG. 7 is an explanatory diagram showing a state of a photographic film cartridge exposed by a lens-fitted film unit embodying the present invention.

FIG. 8 is an explanatory diagram showing a state of photographing data imprinting by the lens-fitted film unit embodying the present invention.

FIG. 9 is a sectional view showing a second embodiment of the lens-fitted film unit according to the present invention.

FIG. 10 is a sectional view showing a third embodiment of the lens-fitted film unit according to the present invention.

[Explanation of symbols]

 1 Film unit with lens 2 Strobe device 11 Photographing data imprinting device 13 Data optical path 14 Data optical path switching plate 17 Field switching plate 18 Finder 48 Data optical path shutter 74 Dry battery 75 Battery contact piece

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G03C 3/00 575 DB

Claims (8)

[Claims] 1. A lens-fitted film unit having a built-in unexposed photographic film and having a simple photographing mechanism and the like, and a daylighting section for taking in outside light from the front surface of the lensed film unit, and an outside section that is taken from this daylighting section. A photographing data optical path provided with a plurality of bent portions having a reflecting surface, which guides light to the photographic film while avoiding the components constituting the lens-fitted film unit to expose the print mark at the bottom of the photographing frame, A lens-fitted film unit comprising a photographing data imprinting device including a data optical path shutter that is inserted into and removed from the photographing data optical path. 2. A main body part having a built-in unexposed photographic film, a shutter mechanism, a taking lens, a finder, and a visual field switching mechanism for switching the visual field range of the finder,
In a lens-fitted film unit consisting of a front cover and a rear cover that respectively cover a battery contact holding a dry battery from the front and back, a daylighting section that takes in external light, and external light that is taken from this daylighting section is applied to the battery contact. A photographing data optical path which is reflected by a reflection surface provided and leads to the photographic film, a data optical path switching plate which shields the photographing data optical path in conjunction with the visual field switching mechanism, and the shutter mechanism in conjunction with the operation. A film unit with a lens provided with a photographing data imprinting device including a data optical path shutter that is inserted into and removed from the photographing data optical path. 3. A main body unit having a built-in unexposed photographic film, a shutter mechanism, a taking lens, a finder, and a visual field switching mechanism for switching the visual field range of the finder,
In a lens-fitted film unit consisting of a front cover and a rear cover that respectively cover the dry battery from the front and back, a daylighting section that takes in external light, and external light that is taken in from this daylighting section is reflected on the outer tube of the dry cell to produce the photograph. A photographing data optical path leading to a film, a data optical path switching plate that shields the photographing data optical path in conjunction with the visual field switching mechanism, and a data optical path shutter that is inserted into and removed from the photographing data optical path in conjunction with the operation of the shutter mechanism. A film unit with a lens, which is provided with a photographing data imprinting device consisting of and. 4. The lens-fitted film unit according to claim 2, wherein the daylighting section is a light guide member formed integrally with the taking lens. 5. A main body unit having a built-in unexposed photographic film, a shutter mechanism, a taking lens, a finder, and a visual field switching mechanism for switching the visual field range of the finder,
A strobe device having a condenser, a dry battery, and a flash discharge tube, and a lens-equipped film unit including a front cover and a back cover that respectively cover the main body section and the strobe device from the front and rear, and strobe light emitted from the flash discharge tube is provided. A photographing data optical path which is reflected by the outer cylinder of the condenser and leads to the photographic film, a data optical path switching plate which shields the photographing data optical path by interlocking with the visual field switching mechanism, and the shutter mechanism which interlocks with the operation of the shutter mechanism. A film unit with a lens provided with a photographing data imprinting device including a data optical path shutter that is inserted into and removed from the photographing data optical path. 6. A main body unit having a built-in unexposed photographic film, a shutter mechanism, a taking lens, a finder, and a visual field switching mechanism for switching the visual field range of the finder,
A strobe device having a flash discharge tube, a dry battery, and a battery contact piece for holding the dry battery, and a lens-fitted film unit including a front cover and a rear cover for covering the main body part and the flash device from the front and rear, respectively. A shooting data optical path that guides the strobe light emitted from a tube to the photo film by reflecting the strobe light on the outer cylinder of the dry battery or the battery contact piece, and the shooting data in conjunction with the visual field switching mechanism. A film with a lens provided with a photographing data imprinting device comprising a data optical path switching plate for blocking the optical path and a data optical path shutter which is inserted into and removed from the photographing data optical path in association with the operation of the shutter mechanism. unit. 7. The data optical path shutter is directly driven by the shutter blade.
A film unit with a lens according to any one of 1 to 6. 8. A photographing data diaphragm for imprinting photographing data of an arbitrary shape is provided near an end of the photographing data optical path on the side of the photographic film. Film unit with lens.