JPH03110531A - Film integrated type camera - Google Patents

Abstract

PURPOSE:To obtain a compact film integrated type camera by which a large number of photographs can be taken and which has a sufficiently high rate of visual field by using a J135 type of film as a film, making the size of an image plane a half size and providing a finder part having a concave lens on the front side of the camera in the upper part of the camera. CONSTITUTION:The J135 type of film is used as the film and the size of the image plane is made the half size, then the finder part 3 having the concave lens 31 on the front side of the camera is provided in the upper part of the camera. Namely, the width of the camera is made short because the size of the image plane is the half size which is long lengthwise and the height of the camera is made short because the concave lens 31 is used in the finder part 3, then the thickness of the camera is made thin because a photographing lens 11 whose focal distance is shorter can be used. Thus, the compact film integrated type camera which is provided with the finder having the sufficient rate of visual field and in which the photographs twice as many as in the case of full size are taken is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a film-integrated camera that has a built-in film and whose light-tight case is disassembled to take out the photographed film after photographing is completed using a photographic lens.

[Background and purpose of the invention]

A film-integrated camera is also called a disposable camera, and the camera is loaded with film from the beginning, and when the shooting is finished, it is returned to the processing laboratory, where the film is removed from the camera and developed.

Since a camera's mission ends when it finishes shooting one roll of film, it is desired that the camera be as inexpensive as possible and that it can easily take pictures.

Many such film-integrated cameras are sold and used for photography at recreational areas and the like.

In the early days, integrated film cameras loaded with 110 type film were commercialized, but in order to improve image quality, cameras loaded with J 135 type film have recently become mainstream, and due to their volume, most A 24-shot film is loaded.

There are many opportunities to take photos when shooting at resorts, etc., and although the number of shots is insufficient with a 24-exposure film, there are many users who do not feel like purchasing two cameras, and some users who want a camera that can take more pictures. many.

Furthermore, since a large proportion of people are photographed and buildings are photographed, a vertically elongated photographic screen is often suitable. However, since conventional film-integrated cameras have horizontally long screens, it is inefficient to photograph such subjects as they are, and it requires skill to hold the camera rotated 90 degrees while photographing. However, this method is difficult for beginners, and has the problem that camera shake often occurs, resulting in failure in taking pictures.

Furthermore, the field of view of the viewfinder of conventional film-integrated cameras is such that the cheapest frame finder is used due to cost and camera volume, and many have a field of view of about 60% of the shooting screen, so the view of the subject is more than necessary. Since the camera is often photographed from a distance, there is a problem in that the photographic screen has a lot of unnecessary parts, and the important subject is photographed too small.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a compact film-integrated camera that can take a large number of images, has a sufficient field of view, and is compact.

[Structure of the invention]

The above purpose is to use J135 type film as the film in a film-integrated camera without disassembling the light-tight case and removing the film after shooting, and to reduce the screen size to half size. This is also achieved by a film-integrated camera characterized in that a finder section having a concave lens on the front side of the camera is provided on the upper part of the camera.

〔Example〕

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing one embodiment of the present invention.
It is a sectional view taken along the line AA in the figure. In the figure, l is the camera body, which is a light-tight case made of a molded member made of synthetic resin, and an unexposed film F pulled out from the cartridge is loaded into the film supply chamber inside the case. ing. The dotted line in the figure is the mask position for the half-size screen.

For the film F to be loaded! It is desirable to use one with a high sensitivity of 50,200 to 400.

The front of the camera body has a slightly protruding area, for example, a film.
There is a lens mount part 2 having a photographic lens 11 with a focal length of about 25 mm, and behind the photographic lens 11 there is a lens mount 2 with a shutter speed of about 1/100 sec, for example.
is installed. Further, a finder section 3 and a photographing lens 1 having a concave lens 31 on the upper front surface of the photographing lens 11 are provided.
At the upper front corner of 1 are a strobe light emitter 4 and a camera body l.
The front is equipped with a light emission switching button 7, and the camera body 1
A shirt release plate 5, a film counter window 6, and a film winding knob (not shown) are provided on the upper surface of the camera.

There is a film supply chamber and a film winding chamber on the left and right sides of the camera body 1, and the film F being wound in the film supply chamber is placed in the screen frame indicated by the dotted line in the figure, where the film transport direction is the direction of the short side of the screen. The film is exposed one by one in a film transport path with a winding chamber, and is wound into a cartridge in a film winding chamber.

As shown in FIG.
You can see a wide field of view through this action. Therefore, compared to the frame finder method, it is possible to create a vertically long field of view finder with sufficient field of view without increasing the height of the camera body 1, and it is possible to shoot more accurately and appropriately close to the subject. You will be able to do this.

In this case, since the camera body l has a margin in the horizontal direction, a cylindrical lens having a curved surface in the vertical direction may be used as the concave lens 31.

The irradiation range of the strobe light emitter 4 is, of course, adjusted to the vertically elongated photographing range, but for this purpose, a lindrical lens-shaped cover having a vertically curved surface may be used for the cover provided on the front surface.

When the light emission switching button 7 is clicked, it stops at two positions, upper and lower. For example, when it is located at the top, the strobe circuit is OFF and the strobe light emitter 4 does not emit light, and when it is located at the bottom, the strobe light emitter 4 does not emit light. The strobe circuit is turned on,
At the time of shirt release after a predetermined period of time after charging of the main capacitor starts and charging is completed, light is emitted in synchronization with the shutter being fully opened. This allows the strobe light emitter 4 to emit light to take pictures in the shade or at night, as desired.

Note that, as a model with a reduced price, it is also possible to use a model that does not include the strobe light emitter 4, the light emission switching button 7, etc.

As described above, in the camera of the present invention, since the screen size is a vertically long half size, the horizontal length of the camera can be shortened, and since the concave lens 31 is used in the finder section 3, the height of the camera can be reduced. This makes it possible to provide a compact half-size film-integrated camera.

Furthermore, since the camera is half-sized, it is possible to use a photographing lens with a shorter focal length +1, which allows the camera to be made thinner. Therefore, while using J135 type film, it is possible to make an extremely compact camera, and it is also possible to load the same length of film as before and take twice as many shots compared to a full-size camera. .

〔Effect of the invention〕

Since the film-integrated camera of the present invention is constructed as described above, it is equipped with a viewfinder having a sufficient field of view and can take twice as many shots compared to a full-frame camera, and is compact. We are now able to offer a film-integrated camera with a wide range of features.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing one embodiment of the present invention.
It is a sectional view taken along the line AA in the figure. l... Camera body 2... Lens mount section 3... 7 Inder section 4... Strobe light emitter 5... Shirt release plate 6... Film counter window 7... Light emission switching button 11 ...Photographer i 12...sha/
Evening 31...Concave lens 32...Finder window F...Film

Claims (1)

[Claims] In a film-integrated camera that has a built-in film and the light-tight case is disassembled to take out the film after shooting, J135 type film is used as the film, the screen size is half-sized, and the camera is mounted on the top of the camera. A film-integrated camera characterized by having a finder section with a concave lens on the front side.