KR19980071484A - Photo film unit with lens - Google Patents

Abstract

The lens-mounted photo film unit has a film roll chamber, a cartridge chamber, and an exposure frame member provided between the film roll chamber and the film container chamber. The exposure frame member has an exposure aperture that passes through each picture so that each exposure frame is recorded in the same size on the film strip. The exposed frame member is convex rearward along the longitudinal direction of the film strip to support the film strip that is recessed forward behind the exposure aperture, and has a wall recessed forward on one edge of the exposure aperture. The data recording hole is formed to pass through the concave wall portion forward, and the data recording lamp projects light toward the data recording hole at each exposure so as to photographically record a plurality of dots on the film strip at one edge of the exposure frame. The data switching blade is installed in the wall recessed forward from the front of the data recording hole. In cooperation with the actuating member actuated to select one of the different print formats for each exposure frame, the data switching blades cover each exposure frame according to the print format selected by the actuating member, with or without covering the data recording holes. The number of dots recorded is changed.

Description

Photo film unit with lens

The present invention relates to a photographic film unit equipped with a lens, wherein the exposure frame can be displayed to be printed in a different format in the film strip by printing format data optically recorded in association with each exposure frame.

Lens-mounted photo film units, each of which is preloaded with a photo film cartridge, are referred to below as film units and are more familiar to users as snap cameras. The film unit has a cartridge chamber and a film roll chamber for fixing each of the unexposed photographic film strip rolls and the film container or cartridge shell. The exposure frame is formed between the cartridge chamber and the film roll chamber. The film strip is exposed through an exposure aperture defined by the exposure frame, and after each exposure is wound on one frame of the cartridge shell.

Since a cheap and focused optical system is used as the photographing lens of the film unit, the film strip is supported to be concave forward behind the exposure frame to correct the curvature of the image plane. Therefore, the exposure frame is formed to be convex rearward along the longitudinal direction of the film strip.

For portability, the film unit is required to be as compact as possible. Recent trends have allowed the body to be thinner than the outside diameter of the cartridge shell, excluding the cartridge chamber.

Recently, a film unit including a new type of film cartridge, called an IX 240 type or an Advanced Photo System (APS) type, has been sold on the market. The IX 240 photo film cartridge may advance it outward by rotating the spool in the disengaging direction and may include an inductor of the film strip therein. The standard frame exposure range of the film strip included in the IX 240 photo film cartridge is 16.7 mm x 30.2 mm.

To add entertainment to the snapshots, the printing system uses a conventional ISO 135 standard size (C size) with an aspect ratio of approximately 1.5, and an elongated panorama size (P size) that doubles the ISO 135 size with an aspect ratio of approximately 3.0. And high visual size (size H), where the aspect ratio is approximately the aspect ratio of the high-definition TV screen, or 1.8. The H size photograph is approximately 89 mm x 158 mm, and the C size photograph is approximately 89 mm x 127 mm.

It is known in the art to record print format data and to record all exposure frames of the same size in order to display the print format in each frame corresponding to the exposure. A photograph according to this method is composed of a print format displayed on an exposure frame of the same size by limiting the print range of each frame corresponding to the displayed print format.

The aspect ratio of the IX 240 standard frame is approximately 1.8, i.e., H size, and the H size photographs consist of standard frames. In this case, the C size photograph is made by defining the right and left portions of the IX 240 standard exposure frame. P-size photographs, on the other hand, are made by defining the top and bottom of the IX 240 standard exposure frame.

In the film unit, the print format data is optically recorded in a dot pattern on the photographic film at one edge of the exposure frame. In order to record the dot pattern, a plurality of holes are formed to pass through the wall portion of the exposure frame, and a data switching blade is installed in front of the wall portion so as to move to cover or not cover some holes.

Installing a plate that is movable in front of the exposed frame wall may increase the thickness of the film unit. In addition, the data switching blade can sufficiently block the film surface with a dot pattern that is recorded clearly enough for automatic identification of the dot pattern.

In view of the foregoing, it is a primary object of the present invention to provide a film unit in which a printing format selection device is compactly incorporated.

Another object of the present invention is to provide a film unit having a print format selection device so as to optically record a dot pattern with sufficient sensitivity.

Film chambers for fixing unexposed photographic film strip rolls, cartridge chambers for fixing film containers in which the film strips are wound after exposure, exposed frame members provided between the film roll chambers and the film container chambers, to be recorded in the same size on the film strips. An exposure frame member having an exposure aperture passing through each exposure frame, and a lens having an exposure frame which becomes convex rearward along the longitudinal direction of the film strip so as to support the film strip which becomes concave forward from behind the exposure aperture. In order to achieve the above object in a photographic film unit, the present invention provides a film unit comprising: a film unit having an operating member operated to select one of different print formats in each exposure frame; A wall portion concave forward from the exposure frame member formed at one edge of the exposure aperture; A data recording hole formed to pass through the wall portion concave forward from the exposure frame member; A light source device for photographing a plurality of dots passing through the data recording holes of the film strip at one edge of the exposure frame by photographing; It is installed in the wall concave forward from the front of the data recording hole, and covers or covers the data recording hole which can move in coordination with the operating member and change the number of dots recorded in each exposure frame according to the printing format selected by the operating member. Provide a data switching blade that does not.

Since the data switching blade is installed in the wall recessed forward from the exposed frame member, the data switching blade can be conveniently and easily provided on the convex back of the exposed frame member, and can be assembled to the main body without requiring any specific space.

The data recording hole is formed so as to pass through the wall recessed forward from the exposed frame member, and the data switching blade is installed in the wall recessed forward, so that the distance from the data switching blade to the film surface is shorter than before and recorded on the film strip. The sharpness of the dots is improved.

The above and other objects and features of the present invention will appear in the following detailed description of the preferred embodiments when read in conjunction with the accompanying drawings, and the invention is not limited by the given drawing manner, and the same elements are used throughout the drawings. Reference numerals were used.

1 is a perspective view of a film unit having a print type selection device according to a first embodiment of the present invention.

2 is an exploded perspective view showing a film unit having a print format selection apparatus according to a third embodiment of the present invention.

Fig. 3 is a front view for explaining the printing format selection device of the first embodiment in the high visual position, the cinema position and the panoramic position, respectively;

4 is an explanatory diagram of an optical guide used in the printing format selection device of the first embodiment;

5A, 5B and 5C are explanatory views showing the operation of the data switching blade of the printing format selection device of the first embodiment;

6A, 6B, and 6C are explanatory views showing dot patterns as examples of print format data.

7 is a perspective view of a film unit having a print type selection device according to a second embodiment of the present invention.

8 is an exploded perspective view of the film unit shown in FIG. 7.

Fig. 9 is an exploded perspective view of the front cover of the film unit shown in Fig. 7 showing the field of view switching plate of the printing type selection device of the second embodiment.

Fig. 10 is a front view for explaining the printing format selection device of the second embodiment in the high visual position.

Fig. 11 is a front view for explaining the printing format selection device of the second embodiment in the cinema position.

Fig. 12 is a front view for explaining the printing format selection device of the second embodiment in the panoramic position;

Fig. 13 is an exploded perspective view of the printing format selection device of the second embodiment.

In Fig. 1, the film unit 2 according to the first embodiment of the present invention has a simple photographic mechanism, and includes a main body 3 including a photo film cassette and a cover 4 surrounding an intermediate portion of the main body 3. It consists of. The main body 3 is provided with a shutter button 6, a frame counter window 7, a viewfinder objective window 8, a photographing lens 9, a flash charging button 10 and a flash window 11. In addition, the knob 12 is provided at the front of the body 3 so that it can be moved along the slot 14. The film winding wheel is indicated by 13. The lid 4 is bonded to the main body 3, and has a cut portion such that the photographing lens 9, the viewfinder objective window 8, the frame counter window 7, the knob 12, and the like are exposed to the outside.

Knob 12 is manually operated to select the print format. The letters C, P and H printed on the lid 4 along the slot 14 indicate three switching positions for selecting a C size picture, a P size picture and an H size picture, respectively.

As shown in FIG. 2, the body 3 includes a base 16 comprising a photo film cartridge, an exposure assembly 17 and a flash assembly 18 attached to the front of the base 16, and a base 16. The front cover 19 which covers the front side of (), and the rear cover 20 which covers the back surface of the base 16 are comprised.

The base 16 has a film roll chamber 26 that holds the unexposed film strip roll 25 and a cartridge chamber 28 that holds the cartridge shell 27 with the spool 27a. An exposure frame member 30 having an exposure aperture 29 and an exposure chamber 33 is formed between the film roll chamber 26 and the cartridge chamber 38. In this embodiment, the film strip 25 is IX 240 type, and the exposure aperture 29 defines the frame exposure range in H size. As the film winding wheel 13 is engaged with the spool 27a and one end of the film strip 25 is mounted to the spool 27a, the film strip 25 is passed through the film winding wheel 13 to the spool 27a. Rotating is then wound around one frame of the cartridge shell 27 after each exposure.

The back surface of the exposure frame member 30 is convex along the longitudinal direction of the film strip 25, as shown by the dotted lines in FIG. The film support surface 40 concave forward is integrally formed on the rear cover 20 in an area facing the exposed frame member 30. Thereby, the film surface is supported so that it may be recessed forward behind the exposure aperture 29. This is to correct the curvature of the image plane.

The pair of data recording holes 31 and 32 are formed to pass through the exposure frame member 30 in the wall portion 65 under the exposure chamber 33. In order to compensate for the concave back of the exposed frame member 30, the wall portion 65 is concave forward along the longitudinal direction of the film strip 25. Since the data recording holes 31 and 32 are recorded through the photographing lens 9 and the exposure aperture 29, optically recording the print format data in the form of a dot pattern on the film strip 25 under the exposure frame. It is used to

In the exposure assembly 17, it is installed in a shutter mechanism, a mechanism for advancing the film frame by frame, and another base portion 34 necessary for exposure. The photographing lens 9 is fixed to the lens holder 35 installed at the front of the base 34. The pivot 35a for the view switching plate 37 is integrally formed in the lens holder 35. A viewfinder optical system comprising an objective lens 38 is also installed in the base portion 34. The exposure assembly 17 is installed in front of the exposure chamber 33.

The front cover 19 is integrally formed with a flash charging button 10, a slot 14, a viewfinder objective 8 and other necessary openings or cutouts. Front cover 19 is attached to the front of base 16 to cover flash assembly 18 and exposure assembly. The rear cover 20 covers the film roll chamber 26 and the cartridge chamber 28 from the rear, and the lower lids 41 and 42 formed integrally with the rear cover 20 have a rear portion of the chambers 26 and 28. The cover, the film strip 25 and the cartridge shell 27 are included in the main body 3 in a waterproof manner.

The flash assembly 18 includes a printed circuit board 43 having a pair of printed contact chips 43a and other printed circuit elements, a light emitting unit 44, a main capacitor 45, a battery holder 47, and a charge indicator lamp ( 48), the synchronous switch 49, and other elements constituting the flash circuit. The battery 46 is fixed by the battery holder 47 and accommodated under the exposure chamber 33.

The metal contact plate 50 is disposed behind the flash charge button 10 so that the contact plate 50 contacts the contact chip 4a when the flash charge button 10 is pressed. By this, the flash circuit is cut off to start charging the main capacitor 45. When the main capacitor 45 is charged to a predetermined level, the charge indicator lamp 48 starts to blink. When the shutter button 6 is pressed, the synchronous switch 49 is turned on so that a shutter blade (not shown) is exposed, and the light radiator 44 flashes.

Further, a data recording lamp 51 used to record print format data is provided on the printed circuit board 43 so that the data recording lamp 50 emits light at each time the synchronous switch 49 is turned on.

The view switching plate 37 pivoting around the pivot 35a includes a cinema viewing window 53 having an aspect ratio of 1.5, a panoramic viewing window 52 having an aspect ratio of 3.0, and exposing the photographing lens 9 to the front. Has an arcuate cut 54. The centers of the viewing windows 52, 54 are arranged in a circle coaxial with the pivot 35a and extend across the center of the viewfinder objective 8.

The knob 12 is formed integrally with the field of view switching plate 37 and protrudes through the slot 14 to the outside of the main body 3. Initially, the viewfinder objective window 8 has a field of view corresponding to the H size exposure aperture 29. That is, the watch is set to H size where the field of view switching plate 37 is not fitted in front of the objective lens 38 of the viewfinder 8 as shown in FIG. 3A. The watch is limited to the C size aspect ratio where the cinema viewing window 52 is placed directly in front of the objective lens 38 as shown in FIG. 3B. As shown in FIG. 3C, the field of view is limited to the P size aspect ratio where the panoramic viewing window 52 is placed directly in front of the objective lens 38.

The field of view plate 37 is manipulated by the spring 58 to rotate counterclockwise in the figure, but the counterclockwise rotation is limited by the stopper 59. When the field of view switching plate 37 is stopped by the stopper 59, the field of view switching plate 37 is not placed in front of the objective lens 38 of the viewfinder 8 as shown in FIG. 3A. Clicks 14a and 14b are formed in the slot 14 to stop the knob 12 at the C size position and the P size position, respectively.

The light guide 62 is installed below the exposure chamber 33. One end 62a of the light guide 62 is directed toward the data recording lamp 51, so that light passes from the data recording lamp 51 to the other end 62b and is directed to the data recording holes 31 and 32. do. The light guide 62 is covered with the light blocking member 64 except for the ends 62a and 62b, so that the light guide 62 is formed at the cutout portion that forms the shutter button 6 in the front cover 19 or in a slot ( The external light which can enter in 14) is blocked.

As shown in FIG. 4, the light guide 62 facing the data recording lamp 51 has a recess 66 to receive the front end of the data recording lamp 51. As shown in FIG. A light blocking member 65 such as a ring made of a malt plane (trade name) is provided on the printed circuit board 43 to cover the periphery of the data recording lamp 51. The light blocking member 65 prevents light leakage of the data recording lamp 51 as well as entering external light into the light guide 62.

The light blocking member 64 extends toward the wall 65 of the exposed frame member 30 so as to surround the data recording holes 31 and 32. This prevents external light from entering the data recording holes 31 and 32. In order to exclude the influence of external light, a door member may be provided to open and block the data recording holes 31 and 32 in cooperation with opening and blocking operations of the shutter blades.

As shown in Figs. 5A to 5C, the data switching blade 63 having the opening 63a is installed to be moved between the data recording holes 31 and 32 and the end 62b of the light guide 62. Figs. do. The data switching blade 63 is made of an opaque and flexible sheet material, namely high elasticity soma black (trade name). The data switching blade 63 and the interconnect rod 57 constitute a data switching device. The data recording holes 31 and 32, the data recording lamp 51, the light guide 62, and the data switching device constitute a print type data recording device.

The data switching blade 63 is coupled to the field of view plate 37 via an interconnect rod 57. The pin member 57a formed at one end of the interconnecting rod 57 is engaged with the coupling end 37a of the field of view plate 37 as shown in FIGS. 3A-3C. The field of view switching plate 37 rotates about the pivot 35a, and the data switching blade 63 extends in the longitudinal direction of the film strip 25 along the wall 65 concave forward from the lower portion of the exposure chamber 33. Move.

When the knob 12 is set to the H size switching position, the data switching blade 63 moves to the position of the opening 63a located between the data recording holes 31 and 32 so that the data recording holes 31 and 32 are moved. It is blocked by the data switching blade 63 as shown in FIG. 5A. When light is projected from the light guide 62, two dots 71 are recorded on the film strip at one edge of the exposure frame as shown in Fig. 6B.

When the knob 12 is set to the P-size switching position, the data switching blade 63 contracts in front of the data recording hole 31, so that the opening 63a of the data switching blade 63 is also shown in Fig. 5C. As described above, it contracts in front of the data recording hole 32. Thus, when light is projected from the light guide 63, only one dot is recorded on the film strip 25 as shown in Fig. 6C.

Since the data switching blade 63 is installed to be movable in the concave wall 65 in front of the exposure frame member 30, the data switching blade can be conveniently provided on the convex back surface of the exposure frame member 30. In addition, the data switching device can be assembled to the main body without requiring any specific space. In addition, since the light guide 62 and the battery 46 are disposed below the exposure chamber 33, the printing type selection device having the above structure can be coupled to the main body 3 with a minimum increase in thickness.

The film unit 2 having the above structure operates as follows.

First, the film winding wheel 13 is rotated to set the initial frame exposure range of the film strip 25 at the exposure position behind the exposure aperture 29. The knob 12 is then set to one of the H, C and P switching positions.

When the knob 12 is set to the high size switching position, the field of view switching plate 37 is contracted in front of the viewfinder objective lens 38 so that the viewfinder objective lens 38 provides the high size field of view. On the other hand, the opening 63a of the data switching blade 63 is located between the data recording holes 31 and 32. When the photographer presses the shutter button 6 while adjusting the photographing area through the H size clock, the shutter blade opens to expose the film strip 25 for a predetermined time. In synchronism with the shutter blades, the synchronous switch 49 is turned on, which causes the data recording lamp 51 to emit light.

The light emitted from the lamp 51 passes from the end 62a of the light guide 62 to the end 62b and is projected toward the data recording holes 31 and 32. Since these holes 31 and 32 are blocked by the data switching blade 63, they are not recorded on the film strip 25 as shown in Fig. 6A. Therefore, no dot displays print format data on the H-size photograph so that no dots represent print format data. If the flash charge switch 10 is pressed at this time, the light radiator 44 also flashes in response to the synchronous switch 49 being turned on.

When the knob 12 is set to the size C switching position, the field of view switching plate 37 is further rotated clockwise so that the panoramic view window 52 is inserted in front of the viewfinder objective lens 38, so that the size P clock To provide. By cooperating the field of view plate 37, when the data switching blade 63 moves to the position shown in Fig. 5C, one dot 71 is filmed through the data recording hole 31 as shown in Fig. 6C. It is recorded on the strip 25, and the shutter button 6 is pressed at the same time. Therefore, one dot 71 is displayed on the P-size photograph so as to represent print format data.

After the entire available exposure frame is exposed, the film unit 2 proceeds to a photo finishing process, where it is advanced and then the film strip 25 is placed on the automatic printing machine. The automatic printing machine is provided with a sensor for scanning the printing format data at the edge of the exposure frame. If the sensor detects two dots 71 in one exposure frame, the exposure frame is printed in size C. If the sensor detects one dot 71 in another exposure frame, the exposure frame is printed in P size. If the dot is not detected, the exposure frame is printed in H size.

7 shows a film unit 80 according to a second embodiment of the present invention. The film unit 80 is provided with a shutter button 6, a frame counter window 7, a viewfinder 8, a photographing lens 9, a flash window 11, and a film winding wheel 13. In addition, the charging switch operating device 84 is positioned below the flash window 11, and the knob 85 is moved so that the knob 85 can be moved along the arcuate slot 130 (see FIG. 9) around the shooting lens 9. (9) is provided at the bottom. The display window 89 for the charge status indicator 88 is formed on one side of the frame counter window 7.

As shown in FIG. 8, the film unit 80 consists of a base 93, an exposure assembly 94, and a flash assembly 95 attached to the front of the base 93. The base 93 includes a photo strip roll 25 and a film container 27 in the same manner as in the first embodiment. The front cover 96 covers the front surface of the base 93 and covers the rear surface of the base 93 of the rear cover 97. The basic structure of these parts 93 to 97 is the same as those having the same name in the above embodiment. Therefore, the following description will only relate to the essential elements in the second embodiment.

The charging switch operating device 84 is movable in the vertical direction, and is moved to an upper position for flash photography. The charge state indicator 88 then pops up through the display window 89, as indicated by the dashed-dotted line in FIG. The charge status indicator 88 lights up when the flash assembly 95 completes charging.

As shown in FIG. 9, the front cover 96 includes a cover body 99 and a front panel 100. The cover body 99 has a finder window 101 disposed in front of the objective lens 38 of the viewfinder 8, the front panel 100 is arranged in line with the finder window 101, and the finder window 101. ) And an objective window 82 having the same shape and size. The charging switch operating device 84 is installed between the cover body 99 and the front panel 100 on the front of the opening 102 formed through the cover body 99. The field-of-view switching plate 104 is mounted to the cylindrical lens barrel 103 so as to be rotated around the optical axis of the photographing lens 9. The toggle spring 105 is suspended between the cover body 99 and the field switch plate 104.

The charging switch operating device 84 includes a button member 106 exposed to the outside, a base plate 107 installed at the front of the cover body 99, and a vertical slot 108 formed through the cover body 99. It is composed of the engaging portion 110 is fitted, and engages with the pin 109 formed on the front side of the state of charge indicator (88). The charge switch operating device 84 may move along the vertical slot 108.

The base plate 107 has a vertical slot 112 into which the pin 113 formed at the front of the cover body 99 is fitted. The vertical slot 112 has a notch so that the pin 113 clicks the notch while the charging switch operating device 84 slides up and down.

The button member 106 is disposed in front of the opening 102 and has a boss not shown toward the back of the opening. When the button member 106 is moved to the upper position, the boss pushes the contact plate 50 over the pair of printed contact chips 43a formed on the printed circuit board 43 of the flash assembly 95. Thereby, the flash assembly 95 is kept charged for a long time as the charge switch operating device 84 is set in the upper position.

The state of charge indicator 88 is formed of a transparent plastic material and is attached to the exposure assembly 94 via a mounting sleeve 119. The pin 109 is formed with a mounting sleeve 119 in front. The state of charge indicator 88 further has an optical guide part 120. In the upper position of the charge switch operating device 84, the light guide portion 120 faces the display lamp element of the flash assembly 95 and is installed on the rear side of the printed circuit board 95 although not shown, Emits light to indicate completion. Light emitted from the display lamp element passes through the light guide part 120 and is projected to the outside of the film unit 80 through the upper end of the light guide part 120 protruding from the display window 89.

The view switching plate 104 is formed of the same plastic material used to form the front panel 100 and the cover body 99. The field-of-view switching plate 104 is used to fit the round hole 122 coaxial with the optical axis 9a of the photographing lens 9 and the one end 125 of the toggle spring 105 when mounted on the lens barrel 103. A small hole 126. The other end coil 123 of the toggle spring 105 is mounted to the pin 124 formed on the cover body 99.

The boss 128 is integrally formed under the front surface of the view switching plate 104. The boss 128 is fitted into an arc-shaped slot 130 formed below the lens hood 129 such as a ring protruding forward from the front panel 100. A knob 85 larger than the boss 128 is attached to the front of the boss 128. In this manner of separating knob 85 from field of view plate 104, slot 130 becomes narrower to maintain good handling characteristics of knob 85. Increasingly narrow slot 130 is desirable to block the interior of the film unit 30 from the ambient light.

The view switching plate 104 has a cinema viewing window 135 corresponding to the C size printing format and a panoramic viewing window 134 corresponding to the P size printing format at its periphery, and a cutout 136 disposed between these viewing windows 134 and 135. Has By operation of the knob 85 that rotates the view switching plate 104, one of the panoramic view window 134, the cinema view window 135, and the cutout 136 is placed in front of the objective lens 38 of the viewfinder 8. That is, it is located between the objective window 82 and the finder window 101.

In addition, in the film unit 80, all exposure frames are recorded in H size so that the finder window 101 composed of the eyepiece 91 and the object window 82 provides a H size field corresponding to the H size photographing area. It is designed to. The cutout 136 of the field of view plate 104 is dimensioned such that the H size watch does not interfere when the H size watch is placed between the objective window 82 and the finder window 101 as shown in FIG. 10. The film unit 80 is initially set so that the cutout 136 is placed between the objective window 82 and the finder window 101 so that the viewfinder 8 first provides an H size field of view.

When the cinema viewing window 135 is sandwiched between the object window 82 and the finder window 101, the field of view of the viewfinder 8 is limited to the C size as shown in FIG. 11. When the panoramic view window 134 is sandwiched between the object window 82 and the finder window 101, the field of view of the viewfinder 8 is limited to P size as shown in FIG. 12.

The toggle spring 105 is suitable for stopping the field of view plate 104 in one of the mutually opposite terminal positions providing a C and P size watch. Since the cutout 136 is positioned between the viewing windows 134 and 135 in the field of view plate 104, a small rotational movement of the knob 85 is sufficient to convert the clock from the H size to either of the two sizes.

The cam slot 138 is formed in the peripheral area around the round hole 122 from the panoramic view window 134 to the cinema view window 135. The cam slot 138 has a lot of torsional forces, and the distance from the center of the round hole 122 to the cam slot 138, that is, the distance of the cam slot 138 from the optical axis of the photographing lens 9 changes. 9 to 12, the cam slot 138 receives the pin 143 formed in the inclined portion of the arm 141 of the rotary lever 140.

As shown in FIG. 13, the rotation lever 140 is installed to rotate on the shaft 146 formed on the front of the exposed frame member 144 positioned in the middle of the base 93. The arm 141 of the rotation lever 140 protrudes forward from the exposure chamber 145, and the space for rotating the arm 141 is integrated into the exposure assembly 94, as shown in FIG. 8. It is formed under the lens frame 147 of (8). The slit 148 is formed on the lower surface side of the finder window 101 as shown in FIG. 9, so that the pin 143 is fitted into the cam slot 138 of the view switching plate 104 through the slit 148. In this manner, the view switching plate 104 rotates as the rotary lever 140 rotates.

The rotary lever 140 has a second arm extending along the right side of the exposure chamber 145 in the figure, and a pin 150 at its inclined portion. The pin 150 engages the fork 152 at one end of the slide lever 151. The slide lever 151 is installed below the exposure chamber 145 so as to be movable in the horizontal direction. Thus, the slide lever 150 is moved in the rotation of the rotary lever 140.

As shown in FIG. 13, the exposure frame member 144 is formed to be convex rearward in the horizontal direction of the film unit 80, that is, in the longitudinal direction of the film strip, so that the film strip 25 is exposed to the exposure aperture ( 145a) behind to be concave forward. Therefore, it is possible to provide a forward concave wall portion under the exposure chamber 145. The forwardly concave wall portion 149 has a flat surface 149a, and the pair of data recording holes 154 and 155 passing through the flat surface are usually in the form of print data on the film strip 25 to record two dots as photographs. Is formed. The data switching blade 157 made of an opaque plastic film or the like is installed to be moved horizontally in front of the flat surface 149a behind the battery 46. The pin 160 formed on the rear side of the slide lever 151 is mounted in the hole 159 of the data switching blade 157 so that the data switching blade 157 moves horizontally with the slide lever 151. The data switching blade 157 has an opening 158 for exposing the data recording hole 154 at the determined sliding position.

The transparent plastic light guide 162 has one end facing the data recording holes 154 and 155 and is disposed in front of the data switching blade 157. The other end of the light guide 162 is directed to a data recording lamp or light emitting element 164, i.e., an LED, which is mounted on the back of the printed circuit board 43 of the flash assembly 95. The light radiating element 164 emits light by an operation signal generated when the synchronous switch 49 of the flash assembly 95 is rotated by pressing the shutter button 6 regardless of whether the flash assembly 95 is charged. Connected to a circuit of flash assembly 95 to be activated to a degree. Light emitted from the light radiating element 164 passes through the light guide 165 and is projected toward the data recording holes 154 and 155.

The light blocking plate 163 is disposed in front of the light guide 162 to block external light that may enter the film unit 80 from entering the data recording holes 154 and 155 and the light guide 162. The light shield plate 163 also has a cylindrical portion 165 to receive the light radiating element 164. An unshown light blocking member, such as a malt plane, is provided around the front end of the light emitting element 164 for the connection between the light shielding light emitting element 164 and the cylindrical portion 165. By this, the cylindrical portion 165 prevents light leakage from the light radiating element 164 to the other interior of the film unit 80 and prevents external light from reaching the data recording holes 154 and 155.

The slide lever 151 is disposed at the front of the light blocking plate 163. The coil spring 168 is suspended between the pin 169 of the slide lever 151 and the light blocking plate 163 to bias the slide lever 151 to the right in the drawing. In this way, the pin 143 of the rotary lever 140 is in contact with the cam surface 138a directed toward the inside of the cam slot 138 of the field of view switching plate 104 as shown in FIGS. 10 to 12. Is maintained and the rotational movement of the field of view plate 104 which is moved to the data switching blade 157 is ensured. The click notch 138b is formed on the cam surface 138a which faces inwardly from the middle portion of the cam slot 138.

When the knob 85 is placed in the H size position, the pin 143 clicks in the click notch 138b to stop the field of view plate 104 at the H size position as shown in FIG. 10, while the data switching blade. 157 blocks both of the data recording holes 154 and 155 so that no dot is recorded at the edge of the photographed exposure frame as shown in Fig. 6A.

When the knob 85 is placed in the C-size position, the field of view plate 104 is forced by the toggle spring 105 to rotate counterclockwise in the drawing so that one terminal 138c of the cam slot 138 rotates the lever. It comes into contact with the pin 143 of 140. In this position, the data switching blade 157 is retracted from the data recording hole 155, and the opening 158 of the data switching blade 157 is positioned in front of the data recording hole 154 as shown in FIG. Then, two dots are recorded at the edges of the exposure frame photographed in the manner as shown in Fig. 6B.

When the knob 85 is positioned in the P-size position, the field switch plate 104 is forced by the toggle spring 105 to rotate clockwise in the figure, so that the cam slot 138 is rotated as shown in FIG. The other terminal 138d comes into contact with the pin 143. In this position, the data switching blade 157 is separated from the data recording hole 155, and the opening 154 of the data switching blade 157 is contracted from the data recording hole 155 to block the data recording hole, so that only One dot is recorded through the data recording hole 155 at the edge of the exposure frame photographed in the manner as shown in Fig. 6C.

As described above, the rotary lever 140, the slide lever 151, the data switching blade 157, the data recording holes 154 and 155, the light guide 162 and the light radiating element 164 are used for printing a print type data recording apparatus. The print format data recording apparatus, the field switch board 104, and the knob 85 form the print format selection apparatus. A print format data recording apparatus is disposed between the battery 46 and the exposure frame member 144 and around the exposure member 145, and the print format selection apparatus is very compactly incorporated in the main body of the film unit 80. Since the data switching blade 157 is disposed on the concave wall portion 149 in front of the exposure frame member 144, the distance from the data switching blade 157 to the film surface is shorter than before, and is recorded on the film strip 25. The linearity of the dots to be improved is improved. In addition, the required moving amount of the data switching blade 157 is shorter than before.

Although the data switching blade has a single opening in the above embodiment, it is possible to use a data switching blade having no opening or two openings.

The present invention has been described with respect to a film unit including an IX240 type photo film cartridge, and of course, the present invention can be applied to a film unit including an ISO135 type photo film cartridge and a compact camera.

The types and numbers of print formats available are not limited to the above three sizes. In either case, it may be desirable to make an original or maskless watch of the viewfinder that corresponds to the original exposure aperture of the camera or film unit. Further, the correction between the number of dots and the print format is not limited to the above embodiment. The shape of the data recording hole and thus the dot may be other than rectangular, that is, circular or rectangular.

Accordingly, the invention is not limited to the embodiments shown in the drawings, but modifications and imitations may be practiced without departing from the scope of the invention as described in detail in the appended claims.

Since the data recording hole is formed so as to pass through the wall recessed forward from the exposed frame member, the data switching blade is installed in the wall recessed forward and the distance from the data switching blade to the film surface is shorter than that of the conventional one and recorded on the film strip. The sharpness of the dot is improved.

Claims (9)

Film roll chamber for fixing the unexposed photographic film strip roll, cartridge chamber for fixing the film container wound after the film strip is exposed, film frame member provided between the film roll chamber and the film container chamber, each exposure frame is a film strip A photograph with a lens having an exposure frame member having an exposed aperture to be recorded in the same size on the back, and an exposure frame member that is convex rearward along the longitudinal direction of the film strip to support the film strip that becomes concave forward behind the exposure aperture. In the film unit, An operating member operable to select one of a different printing format for each exposure frame; A wall portion concave forward from the exposure frame member formed at one edge of the exposure aperture; A data recording hole formed to pass through the wall portion concave forward from the exposure frame member; A light source device for recording a plurality of dots by photographing through data recording holes; It is installed on the wall concave forward from the front of the data recording hole and covers or does not cover the data recording hole which can move in coordination with the operating member and change the number of dots recorded in each exposure frame according to the printing format selected by the operating member. The photographic film unit with a lens, characterized in that it comprises a non-data switching blade. The photographic film unit of claim 1, wherein the data switching blade has at least one opening and is movable in a wall concave forward to change the position of the opening relative to the data recording hole. The photographic film unit of claim 2, wherein the data switching blade is made of an opaque and flexible sheet. The method of claim 1, wherein the forwardly concave wall is provided at the lower edge of the exposure aperture, and the data recording holes are arranged along the longitudinal direction of the film strip, while the data switching blades are movable in the longitudinal direction of the film strip. A photographic film unit equipped with a lens. 5. The flashlight of claim 4, further comprising a flash device and a battery for charging the flash device, wherein the battery is disposed in front of the data switching blades below the exposure chamber provided in front of the exposure aperture for passing light from the photographing lens to the film strip. A photographic film unit with a lens, characterized in that it is placed. 6. An operating device according to claim 5, wherein the interconnection device between the data switching blade and the operating member, the field switching plate disposed on the front portion of the film unit, and the field switching plate change the clock size according to the printing format selected by the operating member. The photographic film unit with a lens, characterized in that it further comprises an operating member provided on the field of view plate to be rotated by. 7. An image sensor according to claim 6, wherein the field of view plate is rotatable about the optical axis of the photographing lens and has a cam slot formed in the range of the photographing lens, and the interconnecting device extends in parallel with the photographing lens optical axis over the exposure aperture. A rotating lever rotatable around, a moving lever installed under the exposure chamber that moves with the data switching device, one arm or two arms that engage the cam slots of the viewing plate and extend forward on the exposure chamber And a rotating lever, another arm coupled with the moving lever and extending downward along one side of the exposure chamber. 6. The light source device according to claim 5, wherein the light source device comprises: a light radiating element installed on a printed circuit board of the flash device, a light guide extending from the light radiating element along the side edge of the exposure aperture in front of the data switching blade, and a light toward the data recording hole. A photographic film unit with a lens comprising a data switching blade that blocks or passes the light projected from the guide. The light blocking member of claim 8, further comprising a light blocking member covering the light guide in a light shielding manner, wherein the light blocking member prevents light from the light radiating element from leaking and protrudes from the end of the light guide to the light blocking member. Photo film unit with lens.