JPH0588246A - Camera provided with data imprinting device - Google Patents

Abstract

PURPOSE:To prevent the size in the horizontal direction of a camera from becoming large even when a data imprinting device is disposed on a camera main body side. CONSTITUTION:Nearly angular space S is formed between the film take-up maximum outer diameter circle Cmax in a spool chamber 3 and the back surface 1b of the camera body nearer to the spool chamber 3 side than an aperture 1c, and at least a part of the data imprinting device, for example, an optical system 23 is disposed in the space S.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera provided with a data imprinting device on the camera body side.

[0002]

2. Description of the Related Art A camera equipped with a data imprinting device of this type is disclosed in, for example, Japanese Patent Laid-Open No. 2-304538. In the data imprinting device disclosed in this publication, a board on which a light emitting element and a driving means for the light emitting element are mounted is provided in the outer peripheral portion of the spool chamber or the cartridge chamber of the camera, and the dark box portion of the camera body and the spool chamber are provided. And a rectangular space is provided in the direction of the optical axis for photographing, and an optical system for illumination light from the light emitting element to the film surface is provided in the rectangular space.

[0003]

However, in such a conventional camera, the optical system of the data imprinting device is provided in the rectangular space formed between the dark box of the camera body and the spool chamber. Since it is provided, the lateral dimension of the camera is increased by the width of the rectangular space. That is, a special space is secured for installing the data imprinting device.

It is an object of the present invention to provide a camera in which the lateral dimension of the camera does not increase even if a data imprinting device is provided on the camera body side.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention will be described with reference to FIGS. 1 and 2 showing an embodiment. In the present invention, a light emitting element 21 for irradiating an illumination light for imprinting data on a film surface.
And a data imprinting device in which an optical system 23 for focusing the illumination light from the light emitting element 21 on the film surface is arranged on the camera body side, and on the film surface on the back surface 1b of the camera body where the aperture 1c is opened. It is applied to a camera that exposes subject light through the aperture 1c and winds the film F into the spool chamber 3 after photographing. The above-mentioned object is to form a substantially triangular space S between the film winding maximum outer diameter circle Cmax in the spool chamber 3 and the camera body rear surface 1b closer to the spool chamber 3 than the aperture 1c, This is achieved by disposing at least part 23 of the data imprinting device in this space S.

[0006]

At least a part of the data imprinting device, for example, the optical system 23 is arranged in the space S essential for the camera, and it is not necessary to provide a special space in the width direction of the camera.

Incidentally, in the section of means and action for solving the above problems for explaining the constitution of the present invention, the drawings of the embodiments are used for the purpose of making the present invention easy to understand. It is not limited to.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to FIGS.
Reference numeral 1 denotes a camera body, in the center of which a dark box portion 2 that guides subject light from a photographing lens to the film surface is provided, and at one end side of the camera body 1, a dark box portion 2 and a spool chamber 3 that separates a partition wall 1a. It is formed integrally. An aperture 1c is opened on the back surface 1b of the camera body 1, and the film F is exposed through this aperture 1c. Inner rails 4a and 4b are arranged on the back surface 1b of the camera body 1 along the top and bottom of the aperture 1c.
Outer rails 5a and 5b are arranged further outside of a and 4b. The inner rails 4a and 4b are projected from the rear surface 1b of the camera body where the aperture 1c is opened by about 0.2 mm, and the outer rails 5a and 5b are further projected from the inner rails 4a and 4b.

Reference numeral 6 denotes a rear outer cover which covers the rear side of the camera body 1, 7 denotes a front outer cover which covers the front side of the camera body 1, and 8 denotes a rear outer cover 6 provided via an elastic body in front of the camera. The pressure plate 8 is biased, and the pressure plate 8 narrows the film F between the outer rails 7a and 7b.

A spool 11 is arranged in the center of the spool chamber 3, and a film pressing roller 12 is attached to the partition wall 1a of the camera body 1 and is biased toward the spool 11 around the spool chamber 3. And a film pressing roller 13 attached to the rear outer cover 6 and urged toward the spool 11. The spool 11 winds the film F while locking the film F on the claw 11a. At this time,
The film F is tightly wound around the spool 11 by the rollers 12 and 13.

In FIG. 1, a film winding circle Cmax indicated by a chain double-dashed line indicates an outer circumference circle when the film F is wound around the spool 11 most, and at this time, the roller 13 is shown in FIG. The roller 12 is deformed in the outer peripheral direction as indicated by the dotted chain line 13a, and the roller 12 is similarly deformed in the outer peripheral direction as indicated by the two-dot chain line 12a in FIG. Therefore, the spool chamber 3
The partition 1a between the dark box portion 2 and the dark box portion 2 is provided with a concave portion 3a in which the roller 12 is housed when the film is maximally wound.

In FIG. 2, reference numeral 21 is a light emitting element which constitutes a data imprinting device, and the light emitting element 21 is composed of a plurality of light emitting diodes extending in a row in the optical axis direction of the photographing, and is arranged on a substrate 22. It is provided. The substrate 22 is arranged on the upper surface 1d of the camera body 1, and the drive circuit of the light emitting element 21 is mounted on the substrate 22. The recess 3
Above a, a substantially triangular space S (FIG. 1) surrounded by the back surface 1b of the camera body sandwiched between the inner rails 4a and 4b and the film winding circle Cmax is formed. An optical system of the device, for example a prism 23, is provided. Illumination light directed from the light emitting element 21 toward the lower side of the camera is guided into the space S through the round hole 1e formed in the upper surface 1d of the camera body 1, and is refracted by the prism 23 to the rear side of the camera by 90 degrees. The illumination light refracted in the rear direction of the camera by the prism 23 is focused on the film surface through the round hole 1f formed in the rear surface 1b of the camera body. In FIG. 1, reference numeral 24 is a cover that closes the optical path of the illumination light from the light emitting element 21 toward the prism 23, but it may be formed integrally with the partition wall 1a.

In the camera with a data imprinting device constructed as described above, a substantially triangular space S is formed which is surrounded by the back surface 1b of the camera body located above the recess 3a and the film winding circle Cmax. The light emitting element 21 is disposed above the upper surface 1d of the camera body 1 at a position above the space S. Then, the optical system 23 arranged in the space S
As a result, the illumination light traveling to the lower side of the camera is refracted toward the back surface of the camera, and the illumination light is imaged on the film surface. Therefore, by flashing a plurality of light emitting diodes in synchronization with film winding, data is imprinted on the film. As a result, the size in the camera width direction is shortened compared to the conventional case where a special rectangular space extending in the shooting optical axis direction is provided between the dark box part and the spool chamber, which contributes to downsizing of the camera. To do.

In the above embodiment, only the optical system 23 of the data imprinting device is arranged in the space S, but as shown in FIG. 3, a plurality of light emitting diodes arranged in a vertical line in the vertical direction of the camera. It is also possible to dispose the light emitting element 121 consisting of in the space S and dispose the optical system 123 in the space S on the camera back side. In this case, an image forming lens is used as the optical system 123 instead of a prism, and a vertically long rectangular opening 1g is formed in the camera body rear surface 1b so that the illumination light passing through the image forming lens 123 is guided to the film surface. In addition, the drive circuit of the light emitting element 121 is provided on the substrate 122 arranged above the camera body upper surface 1d, and the substrate 122 and the light emitting element 121 are electrically connected.

[0015]

As described above, according to the present invention, a substantially triangular space is formed between the maximum outer diameter circle of film winding in the spool chamber and the rear surface of the camera body closer to the spool chamber than the aperture. Since it was formed and at least a part of the data imprinting device was arranged in this space,
Since it is not necessary to provide a space for installing the data imprinting device between the spool chamber and the dark box part, the camera can be miniaturized in the width direction.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a main part around a spool chamber in an embodiment of a camera according to the present invention.

FIG. 2 is a perspective view of a main part of the spool chamber as seen from the rear side of the camera.

FIG. 3 is a perspective view of a main part of a spool chamber in another embodiment of the camera according to the present invention, as viewed from the rear side of the camera.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 camera body 1a partition wall 1b camera body rear surface 1c aperture 1d camera body upper surface 1e, 1f round hole 1g rectangular opening 2 dark box part 3 spool chamber 3a recess 11 spool 12 and 13 pressing roller 21 and 121 light emitting element 22 and 122 substrate 23 and 123 Optical system S Trigonal space F film

Claims (3)

[Claims] 1. A data copy in which a light emitting element for irradiating an illumination light for imprinting data on a film surface and an optical system for forming an illumination light from the light emitting element on the film surface are arranged on a camera body side. In a camera that is equipped with an in-built device and exposes the subject light through the aperture to the film surface on the back of the camera body where the aperture is open, and winds the film into the spool room after shooting, the maximum film winding in the spool room A substantially triangular space is formed between the outer diameter circle and the rear surface of the camera body closer to the spool chamber than the aperture, and at least a part of the data imprinting device is disposed in this space. A camera with a data imprinting device. 2. The camera according to claim 1, wherein the light emitting element is provided above the camera, the optical system is provided in the space, and the optical system is provided on the rear surface of the camera body forming the triangular space. Of the illumination light is opened, the illumination light from the light emitting element is bent in the optical system in a direction orthogonal to the film surface, and an image is formed on the film surface through the passage. A camera with a data imprinting device. 3. The camera according to claim 1, wherein the light emitting element and the optical system are arranged in the space, and a passage of illumination light from the optical system is provided on a rear surface of the camera body forming the triangular shape space. And an illumination light from the light emitting element is formed on the film surface through the optical system and the passage, and a camera with a data imprinting device.