JPH05197093A - Film unit with lens - Google Patents

Abstract

PURPOSE:To provide the film unit with a lens which is low in the probability of deteriorating the color reproduction in stroboscope photographing and is excellent in image quality and with which users are statisfied are obtainable. CONSTITUTION:This film unit with a lens has a fixed focus, a fixed diaphragm, a fixed shutter and a built-in stroboscope and is previously loaded with an unexposed film in a photographable state. The spectral transmittance at 410nm of the stroboscope panel of the built-in stroboscope is >=10% and <=50%, more preferably >=15% and <=40% and more particularly preferably >=20% and <=35%. In addition, the sensitivity at 410nm in the blue sensitive spectral sensitivity distribution of the film is >=70% and <=95% of the sensitivity at the max. blue sensitivity wavelength lambdaBmax.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film unit with a lens in which a film (silver halide color light-sensitive material) is preliminarily loaded in a ready-to-shoot state and a flash is built in for ready-to-shoot.

[0002]

2. Description of the Related Art In recent years, a lens-fitted film unit (hereinafter also referred to as the present camera), which is sold in a state in which a simple plastic camera is loaded with a silver halide color photosensitive material, has become widespread. This frees the user from the trouble of loading a film into an ordinary camera and the failure caused by a mistake in loading the film, and increases the opportunity for taking photographs due to its simplicity. In addition, a strobe type, a telephoto type, and a super wide-angle type have been developed and put into practical use according to the purpose of shooting.

As is well known, the lens-fitted film unit is a simple type camera in which a photosensitive material is preliminarily loaded by a maker, and the user only uses it to photograph one loaded photosensitive material. Since the film unit is sent to the developing station in a state where the photosensitive material is stored, the camera has a very simple structure to reduce the cost.

Therefore, these lens-equipped film units are aimed at low cost, and unlike ordinary cameras, the drive system, optical system, and electrical system are greatly simplified, resulting in unsatisfactory development finish and print quality. There are many points and improvements are desired.

In particular, many photographic prints obtained by photographing with a simple strobe have a bluish skin color of a person, which is a problem. The cause is that the color temperature of the strobe is high. Although there is a tendency to improve by using an ultraviolet absorption filter in the optical system, it is not preferable to use only the ultraviolet absorption filter because the skin color of a person will turn yellow and the sensitivity will be lowered.

[0006]

It is an object of the present invention to provide a lens-equipped film which, even with a simple lens-equipped film unit, has a low probability of degrading color reproduction in stroboscopic photography, has an excellent image, and produces a photograph that is pleasing to the user. The purpose is to provide a unit.

[0007]

The object of the present invention is to provide a fixed focus, a fixed aperture,
In a film unit with a lens, which has a fixed shutter speed and a built-in strobe and is preloaded with an unexposed film, the strobe panel of the built-in strobe has a spectral transmittance at 410 nm of not less than 10% and not more than 50%. And in the blue-sensitive spectral sensitivity distribution of the film,
It has been achieved by a film unit with a lens characterized in that the sensitivity at 410 nm is 70% or more and 95% or less of the sensitivity at the maximum blue sensitivity wavelength λ _Bmax .

In the present invention, the strobe panel is shown in FIG.
Alternatively, as shown in FIG. 2, it is a light-transmissive panel located in front of the stroboscopic arc tube, and often also serves as a cover of the arc tube. In the present invention, the spectral transmittance of the strobe panel is 10% or more and 50% or less at a wavelength of 410 nm, preferably 15% or more and 40% or less, and particularly preferably 20% or more and 40% or less. Further, the effect of the present invention is enhanced when the spectral transmittance at a wavelength of 420 nm is 50% or more, preferably 65% or more, and the spectral transmittance at 400 nm is 20% or less, preferably 10% or less. In order to achieve the spectral transmittance of the present invention, transparent glass or plastic exhibiting a desired spectral transmittance may be used, or a substance exhibiting a desired spectral transmittance, such as an ultraviolet absorber, may be used for glass or plastic. It may be added and kneaded in or may be coated on the surface.

In the present invention, an unexposed film (silver halide color light-sensitive material) preliminarily loaded in a photographable state has a blue-sensitive spectral sensitivity distribution in which the sensitivity at 410 nm is the sensitivity at the maximum blue sensitivity wavelength λ _Bmax . The effect is exhibited by 70% or more and 95% or less, preferably 75% or more and 90% or less, and particularly preferably 78% or more and 88% or less. If it is larger than 95%, the skin color of the person in the obtained print image will be bluish, and if it is smaller than 70%, it will be yellow.

Here, the spectral sensitivity distribution is the spectral sensitivity distribution after the development processing by the negative film processing liquid C-41 manufactured by Eastman Kodak Company after the spectral exposure, and then the sensitivity at the minimum density +1.0 (specific density This is the distribution of the exposure dose ergs / cm ² required to obtain the above.

In order to obtain the spectral sensitivity distribution of the present invention, known methods for silver halide color light-sensitive materials, that is, selection of silver halide grains, adjustment of chemical sensitization, selection of sensitizing dyes, selection of dyes are performed. It can be carried out by selecting an ultraviolet absorber.

As the composition of the silver halide color light-sensitive material of the present invention, all known materials can be used.

As the silver halide emulsion in the present invention, those described in Research Disclosure 308119 (hereinafter abbreviated as RD308119) can be used. The table below shows the locations.

[0014]

[Table 1]

In the present invention, the silver halide emulsion is used after physical ripening, chemical ripening and spectral sensitization. Additives used in such processes are
Disclosure No.17643, No.18716 and No.308119
(Respectively abbreviated to RD17643, RD18716 and RD308119 below).

Table 2 shows the locations described.

[0017]

[Table 2]

Known photographic additives that can be used in the present invention are also described in the above Research Disclosure.
Table 3 shows relevant parts.

[0019]

[Table 3]

Various couplers can be used in the present invention, specific examples of which are described in the above-mentioned Research Disclosure. Table 4 shows relevant parts.

[0021]

[Table 4]

The additive used in the present invention is RD308119XIV.
It can be added by the dispersion method described in 1.

In the present invention, the above-mentioned RD17643, page 28, R
The supports described in D18716, pages 647-8 and RD308119, XIX can be used.

The light-sensitive material of the present invention includes the above-mentioned RD308119VII.
An auxiliary layer such as a filter layer or an intermediate layer described in the section -K can be provided.

The light-sensitive material of the present invention is the above-mentioned RD308119VII-
Various layer configurations such as the forward layer, the reverse layer, and the unit configuration described in the section K can be adopted.

The present invention can be applied to various color photographic materials for photographing represented by color negative films for general use or movies, color reversal films for slides or televisions, and color positive films.

The light-sensitive material of the present invention is the above-mentioned RD17643, 28-29.
Development can be carried out by the usual method described in XIX of pp. RD18716, pp. 647 and RD308119.

FIG. 6 shows a spectral sensitivity curve of a photosensitive material, FIG. 6 (a) shows a spectral sensitivity curve of an example of the photosensitive material according to the present invention, and FIG. This is an example of a photosensitive material.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the appearance of a lens-fitted film unit according to the present invention. This camera is provided with a 35 mm film (J135) pre-loaded, and does not rewind after shooting. The film is sent to the manufacturer while it is still in the camera, the film is taken out from the camera, and the film is developed and printed.

The unexposed film used in this camera is I
A color film with an SO sensitivity of 400, the sensitivity at 410 nm is the highest blue sensitivity wavelength λ _Bmax in the blue-sensitive spectral sensitivity distribution.
With a characteristic of 70% or more and 95% or less of the sensitivity, it is loaded in a state of being wound on a spool, and is wound up in the patrone by winding up each time it is taken. Therefore, on the maker side, the film already taken can be taken out from the camera in the bright room.

Further, the taken film can be taken out easily by bending a part of the back cover. Therefore, if the camera part is checked and a new unexposed film is loaded and the back cover is replaced. It can be reused.

As the cartridge and spool to be loaded in this camera, a cartridge having an outer diameter of 20.6 mm and a spool having a spool diameter of 9 mm, which has a smaller outer diameter than that of a commonly used cartridge (JISK7528) and spool, is used. ..

As a result, the total thickness of the camera can be suppressed to around 24 mm, and an ultra-thin compact camera is realized.

The camera is provided with a cardboard carton (paper cover) on which a product name and a simple usage method are displayed on a part of the outer surface thereof.

FIG. 2 is a development view showing the structure of this camera.

Reference numerals 10, 20 and 30 denote a camera body, a front cover and a back lid, which are main components of the camera, 40 is a built-in strobe unit, and 50 is a film winding unit.

When the camera body 10 is used alone, each member constituting the film winding unit 50 is mounted, and the shutter case 11 for accommodating the shutter blades is further mounted.

The shutter case 11 is fixed by engaging claws 11A projecting on both sides with a locking portion 10A on the front surface of the camera body 10, and the shutter blades are linked to the film winding unit 50.

Further, on the front surface of the shutter case 11, a photographing lens 12 which is a single lens having a focal length of f = 30 mm and a fixed aperture of F9.5 is dropped, and is slidably engaged with a guide pin 11B. Covered by a lens retainer 13 with 13A.

The camera body 10 and the shutter case 11 described above
Is made of a black matte plastic material having some elasticity, including the front cover 20 and the back cover 30 described above.

On the other hand, the strobe unit 40 is mounted and supported on the basis of holes 40A and 40B on the substrate which engage with the guide pins 10B and 10C on the front surface of the camera body 10, respectively.

The upper and lower battery contact pieces 41 integrated with the strobe unit 40 are inserted into the upper and lower slit holes 10D of the camera body 10 and projected into the battery chamber on the back side of the camera body 10 to form an AA battery as a strobe charging power source. The power supply battery E which is

Further, the integrated main capacitor C is stored in a capacitor chamber formed under the shutter case 11.

The lens retainer 13 and the strobe unit 40 described above
The fixing and integration of the above with the camera body 10 is completed by mounting the front cover 20 on the camera body 10.

Prior to mounting the front cover 20 on the camera body 10, an objective lens 21 of a finder is dropped in front of the front cover 20 and is fixed by engaging a decorative cover 22. The makeup cover 22 has a guide pin 22A and four nails 22B on the back.
The front cover 20 and the holes 20A and 4 on the front of the front cover 20, respectively.
It is attached by engaging with the locking portion 20B at the location.

The front cover 20 is further mounted on the front surface of the camera body 10 after the eyepiece lens 23 of the finder is engaged and mounted on the rear surface. In this way, the objective lens 21 and the eyepiece lens 23 constitute an inverse Galileo finder.

The front cover 20 is provided with a hole 20C, a claw 20D, and three engaging portions 20E on the back surface, and the front cover 20 has a guide pin 10E, a nail 10F on the front of the camera body 10 and an engaging portion 10G on the side. It is fitted and attached.

The lens retainer 13 and the strobe unit 40 are fixed to the camera body 10 by the engagement device of the front cover 20 to the camera body 10.

The strobe unit 40 is provided with a light-transmissive panel 45 which also functions as a cover on the front surface of the strobe light emitting tube, and the strobe light is transmitted through the panel 45 to illuminate a subject. The panel 45 of the embodiment is formed by adding and kneading an ultraviolet absorber to a plastic, and has a spectral transmittance of 20% or more and 35% or less at a wavelength of 410 nm. The guide number G _NO of the strobe unit 40 is set to 11 or more and 14 or less.

The camera body 10 mounted with the front cover 20
In the cartridge, a cartridge chamber and a scroll chamber (neither shown) formed on the back surface of the cartridge are loaded with a cartridge P1 and a spool S2 around which an unexposed film F is wound.

The tip of the film F is a cartridge P.
It is locked in the spool in 1 and is loaded in the cartridge P1 in a condition that it can be wound.

A back cover 30 is attached to the back surface of the camera body 10 in which the film F is loaded so that the film F is protected from light and the focus surface position is restricted.

The back cover 30 has claws 30A and 30B on its front surface, and locking holes 30C and 30D on its side surfaces.
Claws 30A and 30B are engaged with the camera body 10 when mounted on the camera.
On the 10H and 10J, the one holes 30C and 30D are the nails 10 of the camera body 10.
It is fixed by engaging K and 10L.

Next, details of the film winding mechanism 50, the sector charge mechanism 60, and the film counter mechanism 70 will be described.

FIG. 3 shows each of the above-mentioned mechanisms at an angle when viewed from the rear side of the camera, and FIG. 4 shows a film and a cartridge loaded into the camera.

In FIG. 3, reference numeral 10 denotes a camera body which is provided with a film winding mechanism and the like. In the camera body 10, a cartridge chamber 15A and a scroll chamber 15B are provided as two storage chambers for film winding and film loading in the same plane on both sides of the screen frame 16 which is the exposure unit.
Is provided so that the J135 film FL wound in the cartridge P1 which is the storage container shown in FIG. 4 can be loaded.

The film FL used in the present camera of this embodiment is a roll film J135, which is the same as a general camera.
The end of the spool S1 is fixed to the spool S1 and the film is wound up for a predetermined number of frames so that the film can be photographed. The film in this state will be loaded into the camera. The loading method will be described below.

The cartridge P1 is loaded into the cartridge chamber 15A so that the spool S1 of the cartridge P1 engages with the fork 52 of the hoisting fork 52. On the other hand, the spool S2 is also inserted in the scroll chamber 15B. Then, in this embodiment, the film FL is pulled out until the tip of the film notcher FN of the film FL matches the index 17A on the lower portion of the lower rail surface, and the tip of the film FL is slit SL of the spool S2.
And the perforation P of the film FL is locked to the nail H.

Next, the back cover 30 is covered and the cover is made light-tight.
Then, the main camera in this state is attached to the film winding device, and the film FL is attached to the spool S2 of the scroll chamber 15B.
The film is loaded by winding it up. That is, by loading the film FL in this way, the film FL is sequentially wound into the patrone P1 for each photographing, and after the photographing of a predetermined number of frames is completed, in the present embodiment, two frames are preliminarily fed. Then, the front end of the film FL is wound into the cartridge P1 with the required length left without being wound into the cartridge. Therefore, this cartridge can be taken out from this camera in a bright room.

Next, the mechanism of the main body will be described.

The camera body 10 incorporates the film winding mechanism 50 including the taking lens 12, a sector charge mechanism 60, and a film counter mechanism 70 as main components.

First, the film winding mechanism and the sector charge mechanism will be described.

Reference numeral 51 is a film winding knob, and the film FL loaded as described above is wound up by turning the film winding knob 51 counterclockwise. A cam 55 having a fan-shaped cam portion 55B at the lower portion, which is coaxial with the sprocket gear 54 having eight teeth and which meshes with the perforation P of the film FL, has a fan-shaped cam portion 55B at a lower portion thereof, and is rotated counterclockwise by exactly
It is designed to rotate.

That is, the film is wound up with the length of eight perforations, which is the number of teeth of the sprocket gear, as one frame, and the frame size is a so-called full size frame size of 24 × 36 mm.

As the cam 55 rotates counterclockwise, the fan-shaped cam portion 55B naturally rotates counterclockwise as described above. In the process, the fan-shaped cam portion 55B moves the charge lever 61 and the charge lever shaft 63. Is rotated clockwise against the spring force of the charge lever spring 64 that urges the charge lever 61 in a counterclockwise direction, and the triangular ketobashi 61C provided on the charge lever 61 causes the rising portion 65B of the sector lever 65 to rise.
Is pressed, and the rising portion 65B is eventually overcome to charge the sector charge mechanism as shown in the figure.

Pin 65C of the sector lever 65 and the camera body 10
A sector spring 67 is stretched between the pins 18C provided at the sector lever 67, and the tensile force of the sector spring 67 causes the sector lever 65 to move.
The left end of the elongated hole is brought into contact with a pin 18B provided on the camera body 10 that guides the elongated hole of the camera in a slidable and rotatable manner, and the sector lever
Pin 18 provided on camera body 10 with arm plate 65D provided on 65
It comes in contact with E. Further, a sector drive pin 65A for actuating the sector 66 pivotally supported by the sector pin 18D provided on the camera body 10 is inserted in the forked portion of the sector 66.

As will be described later, the cam stopper after shooting is completed.
The projecting portion 62D of 62 is removed from the groove portion 55A of the cam 55,
The arm portion 57A of the hoisting stopper 57 changes from the state shown in the drawing to change the arm portion 61A of the charge lever 61 and the arm portion of the cam stopper 62.
The arm 62A is in contact with the end surface of the arm portion 61A by the spring force of the hoisting stopper spring 58 which is displaced from each edge of the arm 62A and urges clockwise. When the cam 55 rotates exactly once as described above by the film winding and the groove 55A of the cam 55 returns to the initial position, the spring force that biases the cam stopper 62 in the clockwise direction by the horizontal end portion of the charge lever spring 64. As a result, the protrusion 62D of the cam stopper 62 jumps into the groove 55A. By this jumping operation, the lock of the arm portion 57A of the hoisting stopper 57, which was locked at the end surface of the arm portion 62A of the cam stopper 62 at this time, is released.

The outer peripheral cylindrical surface of the film winding knob 51 is a ratchet gear, and the V-shaped projection at the tip of the winding stopper 57 is released by the release of the engagement, and the spring force of the winding stopper spring 58 causes the ratchet to rotate. It jumps into the tooth groove of the gear 51A and prevents the film winding knob 51 from rotating in the counterclockwise direction. That is, when the film winding is completed, the film winding knob 51 is prevented from further winding rotation.

Further, in the camera body 10, the tip of the reverse rotation preventing claw 53 utilizing the elasticity of the resin material is pressed against the ratchet gear 51A so as to prevent the film winding knob 51 from rotating in the opposite winding direction. It has become.

By pressing the release button 25 of the front cover 20, the release button pin 25A is planted on the back surface of the release button 25.
Operates in the direction of arrow A. That is, the front cover 20
When attached to the camera body 10, the winding knob
51 By the operation of the tip of the release button pin 25A in the direction of arrow A described above, the hoisting stopper 57 rotates counterclockwise against the spring force of the hoisting stopper spring 58. Then, from the end surface of the arm portion 57A of the hoisting stopper 57, the arm portion of the charge lever 61
The edge of 61A is disengaged, and the charge lever 61, and thus the cam stopper 62, is rotated counterclockwise by the spring force of the charge lever spring 64.

Then, the counterclockwise rotation of the charge lever 61 by the spring force of the charge lever spring 64, which is stronger than the sector spring 67, causes the ketobashi 61 of the charge lever 61 to rotate.
C hits the rising portion 65B of the sector lever 65 and then comes off the rising portion 65B. Therefore, the sector lever 65 rotates clockwise around the pin 18B in the long groove of the sector lever against the tensile force of the sector spring 67, and the sector spring 67
It returns to its original state due to the pulling force of. Therefore, sector drive pin 65A
Will rotate sector 66 about sector pin 18D to expose the film and then close it.

The shutter speed T performed by opening / closing the sector 66 is set to 1/100 sec. When the flash is switched, the flash is emitted at the time when the shutter is fully opened.

On the other hand, the cam stopper 62 also rotates counterclockwise together with the charge lever 61 as described above,
The protruding portion 62D of 62 is removed from the groove portion 55A of the cam 55. Therefore, even if you stop pressing the release button, the winding stopper
The arm portion 57A of 57 is biased in the clockwise direction by the spring force of the hoisting stopper spring 58, but the arm portion 61A of the charge lever 61.
Is stopped by the end face of the
The shaped protrusion does not lock the ratchet gear 51A of the winding knob 51. Therefore, the next film winding can be performed.

Next, the film counter mechanism will be described.

As described above, 72 meshes with the V groove 56A provided at the upper end of the cam shaft 56 planted in the cam 55 that rotates integrally with the sprocket gear 54, and one frame of film is wound up to form a cam shaft. It is an exponential gear that rotates clockwise one tooth each time 56 rotates once.

An index plate 71 is attached to the upper surface of the index plate gear 72 so that the remaining filmable number of the film is displayed through the film counter window 26 on the upper surface of the front cover 20.

A projecting portion 72A is provided on the lower surface of the exponential gear 72, and the projecting portion 72A is formed by the film winding after the filming of a predetermined number of frames is finished.
It is designed to be inserted between the E and another protruding portion 62E of the cam stopper 62 so as to enter. Then, the projecting portion 72A is replaced by the two projecting portions 61.
By entering between E and 62E, the film is wound up by one frame, and even if the cam 55 makes one rotation and the charging of the sector is completed, both the projecting portions 61E and 62E become the projecting portion 72A of the exponential gear 72. As the movement is blocked, the charge lever 61 cannot operate and the protruding portion 62D of the cam stopper 62 is also in the groove portion of the cam 55.
You will not be able to jump into 55A. The arm portion 57A of the hoisting stopper 57 contacts the end face of the arm portion 62A of the cam stopper 62 by the spring force of the hoisting stopper spring 58, and the V-shaped projection at the tip of the hoisting stopper 57 locks the ratchet gear 51A. Also, it is not possible to operate the charge lever 61 to open and close the sector to expose the film.

As described above, in the present embodiment, when two frames of film are fed in an idle manner, the index plate gear 72 rotates by two teeth, and this rotation causes the protrusion 72 of the index plate gear 72 to rotate.
A is a charge lever that holds down the protrusion 61E at all.
The movement of 61 is blocked, but another protrusion 62 of the cam stopper 62 is
It is designed to come off from E. Therefore, the protrusion 62D
Jumps into the groove 55A of the cam 55, the winding stopper 57 is disengaged, and the winding stopper 57 locks the winding knob 51, so that the film cannot be wound. Further, as described above, the movement of the charge lever 61 is blocked so that the film cannot be exposed. In this way, the tongue at the leading end of the film is prevented from being caught in the cartridge and the tongue of the required length is secured. Therefore, in order to make the camera compact, even if a cartridge having a small outer diameter is used, there is no problem in pulling out the film from the cartridge at the time of development.

The configuration and operation of the lens-fitted film unit of this embodiment have been described above. However, the present invention is not limited to the method of winding the color photosensitive material on the cartridge. For example, there may be a system in which a camera portion (b) and a cartridge portion (a) as shown in FIG. 5, the cartridge portion is detachable from the camera portion, and the cartridge portion also serves as the camera portion back cover. In the figure, 521 is a cartridge portion containing a film, 522 is a main body portion of a photographing unit, 523 is a photographing lens,
Reference numeral 524 is a shutter and a fixed diaphragm, and 525 is a locking portion that locks the cartridge portion 521 with the main body portion 522 of the photographing unit to enable photographing. The film unit with a lens having such a configuration has great advantages in reuse of the camera portion and reuse of the cartridge portion.

In the present invention, as described in the embodiments, it is preferable that the main body of the photographing unit and a part of the parts are made of plastic for weight saving and cost reduction. The preferred plastic conditions are excellent light-shielding properties, little influence on the photographic characteristics of the light-sensitive material,
Known materials can be used as long as they are easy to recycle and use. As a preferred specific example, polystyrene to which a light-shielding property is added by adding carbon black or a pigment,
Polypropylene, polyethylene, polyvinyl chloride, polymethylmethacrylate, polyethylene terephthalate,
Examples thereof include cellulose acetate and copolymers thereof.

The power source of the strobe may be a usual alkaline battery or the like as in the embodiment, but a lithium battery may be used, and the environmental pollution due to the disposal of the used battery may be prevented or the used battery may not be used. It is more preferable to use a mercury-free battery or a rechargeable battery in order to reduce problems in reprocessing.

The lens-fitted film unit of the present invention is preferably provided with a carton (cover) as shown in the examples.

The material of the cover is preferably one that can absorb impact, for example, paper, sponge, rubber, leather, cloth or the like. The shape of the cover does not matter, but it is preferable to use a belt-shaped or box-shaped cover, and make holes so as not to interfere with the functions and operations of the lens unit, viewfinder unit, strobe unit, shutter button unit, film winding unit, etc. of the shooting unit. A covered cover is preferred.

It is preferable that the lens-fitted film unit of the present invention is hermetically packaged by a plastic case, a moisture-proof bag or the like after the production and before use. Relative humidity at 25 ℃ is 30 ~ 70%, preferably 40 ~
It is 60%, particularly preferably 45 to 55%, and the oxygen partial pressure can be made lower than atmospheric pressure by filling with an inert gas.

[0085]

According to the present invention, the probability of color reproduction deterioration during flash photography is low, color reproduction is excellent even for human skin tones, and the image quality is excellent and a photograph that satisfies the user is obtained. A film unit with a lens is provided.

[Brief description of drawings]

FIG. 1 is an external perspective view showing an embodiment of a film unit with a lens of the present invention.

FIG. 2 is an exploded perspective view of the overall configuration of the embodiment shown in FIG.

FIG. 3 is an exploded perspective view of a mechanism portion of the embodiment shown in FIG.

FIG. 4 is a perspective view showing a film and a cartridge used in this embodiment.

FIG. 5 shows a cross-sectional view of another embodiment.

FIG. 6 shows a spectral sensitivity curve of a light-sensitive material,
(A) has shown the example of the spectral sensitivity curve applied to this invention.

[Explanation of symbols]

 10 Camera body 12 Shooting lens 40 Strobe unit 45 Panel (strobe) 66 Sector (shutter blade) FL film P1 Patrone

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ken Ishida 1st Sakura-cho, Hino City, Tokyo Konica Stock Company In-house

Claims (1)

[Claims] 1. In a film unit with a lens, which has a fixed focus, a fixed aperture, a fixed shutter speed, and a built-in strobe and is preliminarily loaded with an unexposed film in a ready-to-shoot state, the built-in strobe panel has a spectrum at 410 nm. A lens having a transmittance of 10% or more and 50% or less, and in the blue-sensitive spectral sensitivity distribution of the film, the sensitivity at 410 nm is 70% or more and 95% or less of the sensitivity at the maximum blue sensitivity wavelength λ _Bmax . Attached film unit.