JPS60218651A - Aperture card for electrophotographic film - Google Patents

Abstract

PURPOSE:To obtain an aperture card for electrophotographic film whose handling is made easy, by providing a conductive layer and a conductive member on an electrophotographic sensitive film of the card. CONSTITUTION:In an aperture card 4 for electrophotographjic film, a car 5 as the mount is provided with an aperture 5a, and an electrophotographic sensitive film 6 is fitted into this aperture 5a. Conductive tapes 7 are stuck to proper positions across the electrophotographic sensitive film 6 and the card 5. Conductive tapes 7 hold the electrophotographic sensitive film 6 in the aperture 5a of the card 5 and are connected electrically to a conductive layer of the electrophotographic sensitive film 6. Shapes and sizes of the aperture 5a and the electrophotographic sensitive film 6 are so determined that the electrophotographic sensitive film 6 is just fitted into the aperture 5a.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an aperture card using an electrophotographic photosensitive film that is easy to handle in the form of a thin card.

<Prior Art> The amount of information such as documents and drawings has increased rapidly in recent years, making it difficult to process and handle this information. As a solution to this problem, methods are known and in use for copying information onto microphotographic film, processing the information, and storing it. The shapes of this microphotographic film include a 16-inch roll film, a fish-like film that can record from a dozen images to several hundred images, a strip-shaped jacket film, and classifications.
In order to handle the arrangement as a card, an aperture card film is known in which a card of a certain size is provided with an aperture and a microfilm is attached to the aperture. When creating this aperture card,
When creating a card with a large amount of information at once, it is common to record it on a roll of film, cut it into individual images, and attach the film for each image onto the card. In the case of photographing, processing cannot be performed until one roll is photographed, which is inconvenient. □ On the other hand, as a material for micro photographic film, one using silver salt photosensitive film is known.

Silver halide photosensitive film has high sensitivity and high image quality, making it suitable for batch processing large amounts of information to form images, but it has drawbacks such as the inability to leave unphotographed film in a bright room. On the other hand, if electrophotographic film is used, which is based on electrophotographic technology, it has no photosensitivity until it is charged, making it possible to store the unphotographed film in a bright room, and the development process can take a long time. Compared to salt film, it has the advantage of being shorter in processing time, so if this electrophotographic film is used as an aperture card film, it is extremely suitable because it can be processed one by one even when a small number of shots are to be taken. be.

However, in the case of an aperture card using this electrophotographic photosensitive film, the conductive layer of the electrophotographic photosensitive film is charged, exposed, and developed when recording an image on the electrophotographic photosensitive film on which no image is formed. must be grounded or connected to an external power source. However, as shown in the cross-sectional structure of this electrophotographic film in FIG. The conductive layer 2 is sandwiched between the film base 1 and the photosensitive layer 30 and is not exposed to the surface except for the outer peripheral edge of the film.

Therefore, how to establish an electrical connection between the conductive layer 2 of the electrophotographic photosensitive film and the outside is an important issue for an aperture card for electrophotographic film. For example, in the case of a device in which an electrophotographic photosensitive film is held between a mount, a part of the photosensitive layer 3 of the electrophotographic photosensitive film held by the mount is peeled off to expose the conductive layer 2, and the conductive layer 2 is penetrated through the mount. The electrical connection between the conductive layer 2 and the outside is obtained by bringing the vials into contact with each other. The problem is that it encourages

Furthermore, if the electrophotographic film is not held by a mount, but is inserted into an opening made in a card and held with adhesive tape, the thickness of the electrophotographic film is offset by the thickness of the card, so the wall thickness Although it becomes thinner, the electrical connection method of the conductive layer 2 of the electrophotographic photosensitive film becomes a problem.

<Purpose of the Invention> The present invention has been made in view of the above-mentioned problems.The present invention has been made in view of the above-mentioned problems. The purpose of the present invention is to provide an aperture card for electrophotographic film that solves the problems of handling such as searching and storage and space when used after being used.

<Structure of the Invention> The structure of the uninvented aperture card for electrophotographic film to achieve the above object is that the aperture card for electrophotographic film is electrically connected to the conductive layer of the electrophotographic film disposed in the aperture formed in the card. The present invention is characterized in that a conductive member is attached to the electrophotographic photosensitive film.

<Effects of the Invention> Therefore, according to the uninvented aperture card for electrophotographic film, the thickness is approximately equal to the thickness of the card, and as a result, it is possible to construct a thin wall, which is necessary for image formation. This facilitates grounding during charging, exposure, and development processes, and also facilitates storage, retrieval, and other handling.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings. FIG. 2(a) is a front view of one embodiment of the present invention, FIG. 2(b)
is an enlarged cross-sectional view of the main part thereof, and as shown in FIG. 2, the aperture card 4 for electrophotographic film according to the present invention is
An opening 5a is formed in a card 5 serving as a mount, and an electrophotographic photosensitive film 6 is fitted into the opening 5a. Here, opening 5
a and the shape and size of the electrophotographic photosensitive film 6 are determined by the aperture 5.
The dimensions are determined so that the electrophotographic photosensitive film 6 can be just fitted into the inside a.

Further, a conductive tape 7 is attached at an appropriate position spanning the electrophotographic photosensitive film 6 and the card 5. The conductive tape 7 is attached to an electrophotographic photosensitive film 6 within the opening 5a of the card 5.
while holding the conductive layer 2 of the electrophotographic photosensitive film 6.
is electrically connected to. In addition to the conductive cheese 7, an adhesive tape or an adhesive (not shown) may be used to hold the electrophotographic photosensitive film 6 within the opening 5a. Also,
It goes without saying that the conductive tape 7 may be applied over the entire circumference of the electrophotographic photosensitive film 6, or that only a portion of the conductive tape 7 may be applied and a general non-conductive tape may be used for the rest. .

Next, an example of electrical connection means between the conductive layer 2 of the electrophotographic photosensitive film 6 and the conductive tape 7 will be explained with reference to FIG. FIG. 3 (aJ) and FIG. 3 (bJ) focus on the fact that the edge of the conductive layer 2 is exposed at the outer peripheral edge of the electrophotographic photosensitive film 6 as described above. (
a) is a part of the edge of the electrophotographic photosensitive film 6 in advance;
A conductive paint 8 is applied continuously to cover the edges of the conductive layer 2, the film base 1 of the electrophotographic photosensitive film 6, and the outer surface edges of the photosensitive layer 3, and the conductive paint 8 is exposed on the edge of the outer surface. A conductive tape 7 is pasted on top of the conductive layer 2 and the conductive tape 7 through the conductive paint 8 to electrically connect the conductive layer 2 and the conductive tape 7. Further, in FIG. 3(b), a conductive paint 8 is poured into the gap formed between the card 5 and the electrophotographic photosensitive film 6, and the conductive layer 2 of the electrophotographic photosensitive film 6 is poured through the conductive paint 8. An example is shown in which conductive Chigua is electrically connected. In the case shown in FIGS. 3(a) and 3(b), the conductive tape 7 can be attached to either the film base 1 side of the electrophotographic photosensitive film 6 or the photosensitive layer 3@.

Further, FIG. 3(e) shows that a scratch 9 reaching the conductive layer 2 is made on the photosensitive layer 3 near the edge of the electrophotographic photosensitive film 6, and a conductive tape 7 is pushed into the conductive tape 7 from above the scratch 9.
is brought into contact with the conductive layer 2 to electrically connect the conductive layer 2 and the conductive tape 7.

Further, in FIG. 3(d), an area where the photosensitive layer 3 is not formed is provided at a part of the edge of the electrophotographic photosensitive film 6', the conductive layer 2 in this area is exposed, and a conductive tape 7 is pasted there. The conductive layer 2 and the conductive tape 7 are attached to each other to establish an electrical connection between the conductive layer 2 and the conductive tape 7. Moreover, instead of providing an area where the photosensitive layer 3 is not formed as shown in FIG. It is also possible to bring the conductive tape 7 into contact with the conductive layer 2.

The embodiments shown in FIGS. 3(a) to 3(d) above are the conductive tape 7.
This also serves as a holding means for the electrophotographic photosensitive film 60 card 5, and there is no need to separately provide a holding means and a grounding member when producing the electrophotographic film aperture card 4, which is effective in reducing the number of steps. Figure 4 (a
), as shown in (b), the electrophotographic photosensitive film 6
Using a non-conductive tape IO commonly used for p retention, a part of this non-conductive tube 10 is cut out, and a known conductive member such as a conductive paint 8 is exposed on the surface of the cut-out part. It may also be attached like this. Also, Figure 4 (C),
(Like ψ, the conductive paint 8 may be applied so as to protrude from the outer periphery of the non-conductive tape 10 without providing a cutout in the non-conductive tape 10.

Here, a known conductive tape 7 and conductive paint 8 can be used. For example, the conductive tape 7 may be a film that has been treated to conductivity by dispersing carbon, or an adhesive in which carbon is dispersed in metal foil. The highly conductive paint 8 may be a paint in which silver powder or carbon is dispersed. Further, the material is not limited to this example, and any known conductive member can be used as long as it can be formed thinly.

In such an aperture card 4 for electrophotographic film, when the aperture card 4 for electrophotographic film is attached to an electrophotographic device (not shown) during image formation, the fixed frame of the electrophotographic device presses the card 5 and the aperture card 4 for electrophotographic film is attached. While the aperture card 4 is fixed, the electrical connection terminal of the electrophotographic device is pressed against the conductive member, and the electrical connection terminal of the electrophotographic device is pressed against the conductive member.
Therefore, the conductive layer 2 of the electrophotographic photosensitive film 6 is electrically connected to the electrophotographic device via the conductive member. On the other hand, the electrophotographic photosensitive film 6 is fitted into the opening 5a of the card 5, and the conductive layer 2 is electrically connected to the electrophotographic device through the conductive member. Since the thickness of the card 5 can be made extremely thin compared to the thickness of the card 5, the thickness of the aperture card 4 for electrophotographic film can be made approximately as thin as the thickness of the card 5.

According to the embodiments of the present invention, when an image is formed on an electrophotographic photosensitive film on which no image is recorded, conductive members for electrical connection such as grounding required during charging, exposure, and development processes are provided. Since the wall thickness of the aperture card is not particularly thick, it is easy to configure the electrophotographic device, and when searching for the aperture card, the thickness of the conductive member does not interfere with transportation, etc., making it suitable. . Furthermore, when storing the aperture card, space can be reduced due to the lack of wall thickness, which has great effects during image formation and when used after the image is recorded.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of an electrophotographic film, Figure 2 (a)
is a front view of one embodiment of the present invention, FIG. 2(b) is an enlarged sectional view of the main part thereof, and FIGS. 3(a) to (d) are diagrams of the conductive layer of the electrophotographic photosensitive film and the conductive tape, respectively. Cross-sectional view for explaining an example of electrical connection means, FIG. 4(a), (
C) is a construction drawing of another embodiment of the present invention, and FIG.
b) and (d) are the same sectional views. In the drawing, 1 is a film base, 2 is a conductive layer, 3 is a photosensitive layer, 4 is an aperture card for electrophotographic film, 5 is a card, 5a is an opening of the card, 6 is an electrophotographic photosensitive film, 7 is a conductive tape , 8 is a conductive paint. Figure 1 Figure 2 (b) Figure 3

Claims (1)

[Claims] ゛ An electrophotographic film characterized in that a conductive member electrically connected to a conductive layer of an electrophotographic photosensitive film disposed in an opening formed in a card is attached to the electrophotographic film. Aperture card.