JP3066809U - Photographic film protection bag and protection sheet for copy protection - Google Patents

Abstract

(57) Abstract: In a photographic film container having a photographic film 5 interposed between a front film 1a and a back film 1b or a light diffusion sheet 2, the front film 1a, the back film 1b, the light diffusion sheet 2 is a photographic film container for preventing copying in which an embossing 4 is formed on at least one of the two. [Effect] The light emitted from the light source fixed to the back of the photographic film container is transmitted light, so that the image of the photographic film stored therein can be normally viewed. Halation occurs for the emitted light, and an interference image is displayed, which can hinder the purpose of copying or transferring.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention is based on a photographic film protection bag for copy protection, which prevents the stored photographic film from being copied from the outside, in a bag-like photographic film holder (so-called film pack) or a photographic film protection bag with a mount. It relates to a protective sheet that is attached to unmodified commercially available mounts for the same purpose.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, as a photographic film container, a transparent resin film formed in a bag shape and a milky white light diffusing sheet inserted therein is known.

[0003] When renting a photographic film, the photographic film is stored inside, and the outlet for the photographic film is sealed by thermocompression bonding or the like, and the lent photographic film is drawn out and copied. Therefore, the borrower can illuminate from behind the photographic film holder and observe the photographic film stored inside with a magnifying glass (loupe) from the surface, but never copy it. It was like.

As another conventional photographic film container, a photographic film container with a mount is known, and the lent photographic film is also provided between the front film and the back film stretched on the mount. Is prevented from being pulled out and copied, and the photographic film stored inside can also be observed with a loupe, but it must never be copied. Had become.

[0005]

[Problems to be solved by the invention]

 However, recently, due to the spread of copiers and scanners for personal computers and the improvement of their accuracy, illegal copying and transfer have been carried out without leaving the film in the photographic film or without peeling off the film stretched on the mount. The use of personal computer software based on the above causes piracy of malicious images such as distorting the original form.

In order to prevent this, there has been proposed a copy protection photographic film case in which a fine pattern of copy prevention is printed on a transparent resin film of the photographic film case (registered utility model No. 3031053).

However, when observing from the outside with a loupe or the like while the photographic film is inserted in the photographic film container, there is a disadvantage that the fine pattern on the surface of the photographic film container disturbs and the photographic film inside cannot be observed. Yes.

[0008] Thus, according to the present invention, copying or transferring cannot be easily performed by a copying machine or a scanner for a personal computer. However, a protective sheet for preventing copying with a photographic film in a photographic film holder or on a mounted mount. The purpose of the present invention is to propose a photographic film container that allows sufficient illumination of the photographic film stored inside when light is illuminated from behind and a loupe or the like is observed from above.

[0009]

[Means for Solving the Problems]

 In view of the above circumstances, the present invention provides a photographic film protective bag in which a photographic film is interposed between a front film, a back film, and a translucent light diffusion sheet. Another object of the present invention is to provide a photographic film protective bag for preventing copying in which at least one emboss is formed.

[0010]

[Action]

 That is, the light source of the copier or the scanner scans, but in this invention, since the emboss is formed on at least one of the front film, the back film, and the translucent light diffusion sheet, the light from the scanning light source a is used. When this occurs, the original shape of the image is deformed due to irregular reflection (halation) (see Fig. 4 (b)). Therefore, copying or transferring can be abandoned.

On the other hand, with the photographic film in the photographic film protective bag, the light from the fixed light source a on the back is transmitted without being irregularly reflected by the emboss, and can be sufficiently observed with a loupe or the like [FIG. 4 (a)].

[0012] In a photographic film protective bag in which a photographic film is interposed between the mounted surface film and the light diffusion sheet, the same applies if at least one of the surface film and the light diffusion sheet is embossed. The effect is obtained.

Further, a transparent or translucent protective sheet having an emboss formed on a surface of a photographic film protective bag in which a photographic film is interposed between the mounted surface film and the light diffusion sheet may be attached. Similar effects can be obtained.

[0014]

【Example】

 Example 1 A rented photographic film was sealed in a film pack according to the present invention according to the following steps 1 to 3. The pattern, the name of the renter of the photographic film lender, the name of the copyright holder, etc. are stamped out with a type ribbon on a translucent plastic sheet coated with carbon on the surface. This is developed by a hot-melt printer to produce a negative. This is baked and developed on a photosensitive resin plate to form a relief plate, and the relief plate is mounted on a roll type or flat press. A commercially available film pack 1 and a milky white light diffusion sheet 2 are inserted between the plate cylinder and the receiving cylinder (urethane rubber) and pressed to make the surface of the front film 1a and the back film 1b of the film pack 1 and the surface of the light diffusion sheet 2 uneven (embossed). ) 3 is attached. The rental photo film 4 is inserted into a space where the concave surface of the emboss of the pack film and the concave surface of the protective sheet face each other, and the entrance of the film pack is sealed by thermocompression.

In the above-described configuration, when the photographic film 4 enclosed in the film pack is copied or transferred using a copying machine or a scanner, the light emitted from the scanning light source generates an interference image due to halation generated by the emboss 3. , The purpose of copying or transferring is hindered.

On the other hand, the light emitted from the light source fixed to the back surface of the film pack 1 passes through the back film 1b, the light diffusion sheet 2, and the front film 1a without causing halation in the emboss 3, so that the film pack 1 The image of the photo film 4 housed inside with a loupe or the like can be normally observed from the surface of the camera.

Example 2 With respect to the photographic film 4 on which the mount 5 was mounted, the emboss 3 was formed on the surface film 1a in accordance with the above.

The photographic film 4 was placed on the glue surface of the light diffusion sheet 2, and the surface film 1 a of the emboss 3 was further placed thereon, and was attached to the mount 5.

Example 3 For a commercially available mount 5 in which the surface film 1a is not embossed,
An embossed protection sheet 7 provided with an adhesive layer 6 may be attached along the side edge.

[0020]

[Effect of the invention]

 In short, according to the present invention, at least one of the front film, the light diffusion sheet, and the back film is embossed, so that light emitted from the light source fixed to the back of the photographic film container becomes transmitted light, and The image of the photographic film stored inside can be viewed normally, but the light source that scans, such as a copier or a scanner, causes halation with respect to the light emitted from the light source. It can hinder the purpose of transcription.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a film pack according to the present invention, in which (a) shows a state in which a light diffusion sheet and a photographic film are inserted into the film pack, and (b) a light diffusion sheet and a photographic film in the film pack. Longitudinal side view showing the state with the inserted

FIG. 2 shows an embodiment of a photographic film holder with a mount according to the present invention, wherein (a) is a front view, and (b) is a longitudinal side view thereof.

FIG. 3 shows an example of a commercially available photographic film holder with a mount that has not been embossed.
(A) is a diagram showing a state where a protective sheet is attached to a mount, and (b) is a diagram showing a state where a protective sheet is attached to a mount.

4A and 4B are explanatory diagrams of the principle of the present invention, in which FIG. 4A shows a state in which light from a fixed light source on the back is transmitted without being irregularly reflected by embossing, and FIG. The figure which shows the state which causes halation by emboss.

[Explanation of symbols]

 1 is a film pack 1a is a front film 1b is a back film 2 is a milky light diffusion sheet 3 is embossed 4 is a photographic film 5 is a mount 6 is an adhesive layer 7 is a protective sheet a is a light source

Claims (3)

[Utility model registration claims] 1. A photographic film protective bag in which a photographic film is interposed between a front film, a back film, and a light diffusion sheet, wherein at least one of the front film, the back film, and the light diffusion sheet is embossed. A photographic film protective bag for preventing copying. 2. A photographic film protective bag in which a photographic film is interposed between a mounted surface film and a light diffusion sheet, wherein at least one of the surface film and the light diffusion sheet is embossed. Photographic protective bag for copy protection. 3. A transparent or translucent protective sheet adhered to the surface of a photographic film protective bag having a photographic film interposed between a mounted surface film and a light diffusion sheet, wherein the protective sheet is embossed. A protective sheet for preventing copying formed with.