JPH07281583A - Hologram recording film and hologram recording method - Google Patents

Abstract

PURPOSE:To obtain a hologram recording film capable of rapidly and stably forming a hologram by preventing disturbance in images by the reflection component at the boundary of a photosensitive material. CONSTITUTION:The surface of a transparent film 2 of a PET, etc., laminated on one surface of a photosensitive material layer 1 is provided with a colored film N via an optical adhesive liquid or optical tacky adhesive sheet L. The optical adhesive liquid L is rapidly adjusted to a uniform thickness by a using a pressing mechanism, such as roller and is no longer affected by vibrations, etc., during exposing. The colored film N is reutilizable by peeling the film after exposing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hologram recording film and a hologram recording method using the film.

[0002]

2. Description of the Related Art When hologram recording is performed using a photosensitive material such as a photopolymer, a conventional hologram recording film F has a transparent material such as PET on one surface or both surfaces of a photosensitive material layer 1 as shown in the cross section of FIG. The films 2 and 3 were laminated.

The applicant of the present invention, as shown in FIG. 15, laminates colored films 4 and 5 on one side or both sides of the photosensitive material layer 1 in order to prevent unnecessary interference fringes due to back reflection of the hologram recording film. A holographic recording film F is also proposed (Japanese Patent Application No. 4-76665).
No. 2).

When the hologram recording film F as described above is used to mass-produce a copy of an original hologram, for example, as shown in FIG. 16, an original 6 formed on a substrate 7 is formed.
The hologram recording film F is sequentially supplied onto the above through the optical contact liquid 8. Then, in order to prevent the disturbance of the image due to the reflection component at the interface of the photosensitive material, the non-reflection coating glass or the ND (coloring) glass 9 having the non-reflection coating layer 10 on the hologram recording film F which is sequentially supplied,
The glass is brought into close contact with an optical contact liquid 11 having a substantially equal refractive index, and laser light is made incident from the non-reflection coating glass 9 side, and the incident light and the diffracted light from the original plate 6 are caused to interfere in the photosensitive material layer 1. Are being duplicated.

[0005]

However, as shown in FIG.
When the hologram recording is performed in such an arrangement as described above, the optical contact liquid 11 is unlikely to have a uniform thickness due to fluidity, vibration, etc. It takes a long time and is not suitable for mass production.

Moreover, since the non-reflective coated glass or ND glass 9 that adheres to the film F is a hard material, it is difficult to smooth the optical contact liquid 11 with a roller or the like.

Then, it is necessary to dry the contact liquid 11 from the exposed film F after the laser light irradiation is completed, which hinders the production of the hologram.

When a hologram recording film having a colored film laminated as shown in FIG. 15 is used,
There is also a problem that the colored film cannot be reused after hologram recording.

The present invention has been made in view of the above problems of the prior art, and an object thereof is a non-reflective coated glass for preventing image disturbance due to a reflection component at the interface of a photosensitive material during hologram recording. It is an object of the present invention to provide a hologram recording film capable of quickly and stably forming a hologram without adhering a colored glass to each other, and a hologram recording method using the film.

[0010]

A first hologram recording film of the present invention which achieves the above object, comprises a colored film on at least one surface of a photosensitive material having a transparent film laminated on one or both surfaces of a photosensitive material layer, The present invention is characterized in that a colored film coated with a non-reflection coating layer or a transparent film coated with a non-reflection coating layer is adhered via an optical contact liquid or an optically transparent adhesive sheet.

In another hologram recording film of the present invention, at least one surface of a photosensitive material obtained by laminating a transparent film on one surface or both surfaces of a photosensitive material layer is coated with an adhesive colored film and a non-reflective coating layer. It is characterized in that a colored film having an adhesive property or a transparent film having an adhesive property coated with a non-reflective coating layer is adhered.

Further, the hologram recording method of the present invention is characterized in that such a hologram recording film is adhered to a hologram master plate directly or via a transparent body, and a laser beam is irradiated to copy the hologram master plate. Is the way.

In this case, after copying, the colored film adhered to the light-sensitive material, the colored film coated with the antireflection coating layer, or the transparent film coated with the antireflection coating layer is peeled off and reused. You can

[0014]

In the present invention, a colored film, a colored film coated with an antireflective coating layer, or a transparent film coated with an antireflective coating layer is provided on at least one surface of a light-sensitive material by an optical contact liquid or Use a pressing mechanism such as a roller to attach the transparent adhesive sheet.
The optical contact liquid can be quickly made to have a uniform thickness, and is not affected by vibration or the like during exposure.
Furthermore, after exposure, the colored film, the colored film coated with the antireflection coating layer, or the transparent film coated with the antireflection coating layer can be peeled off and reused.

It should be noted that, through an optically transparent pressure-sensitive adhesive sheet, a colored film having an adhesive property, a colored film having an adhesive property coated with an antireflection coating layer, or an adhesive film coated with an antireflection coating layer. By using a transparent film, the drying process of the exposed photosensitive material film can be simplified.

[0016]

EXAMPLES The basic structure and examples of the hologram recording film of the present invention will be described below. In the present invention, in order to reduce stray light which affects the hologram quality, at least one surface of the photosensitive material layer is coated with a non-reflective coating glass, a colored glass, or a non-reflective coating as in the conventional case. Instead of adhering glass through an optical contact liquid, these non-reflective coated glass, colored glass, and colored glass coated with anti-reflective coating are formed into a film, and the light-sensitive material layer and anti-reflective coating film, colored film, or non-reflective By interposing an optical contact liquid or an optically transparent pressure-sensitive adhesive sheet as a refractive index matching material between the colored films coated with the coat, or further, a non-reflective coating film, a colored film, or a non-reflective coating. By giving the colored film that has been coated with adhesiveness as a refractive index matching layer itself, a layer structure with a uniform thickness can be quickly formed. Forming a, and, in which it possible to simplify the drying process of the exposed film after the completion of laser irradiation.

Specific examples of layer structure are shown in FIGS.
The recording film of the present invention has an optical contact liquid or an optically transparent pressure-sensitive adhesive sheet (optical pressure-sensitive adhesive sheet) L or an optically transparent pressure-sensitive adhesive layer (optical pressure-sensitive adhesive) on at least one surface of the photosensitive material layer 1 made of a photopolymer or the like. Layer) S, a colored film N, a colored film N provided with an antireflection coating layer C,
It has a structure in which the transparent film T provided with the antireflection coating layer C is in close contact, and the colored film N and the transparent film T can be peeled off and re-adhered.

1 to 3, the coloring film N is adhered to at least one surface of the photosensitive material layer 1 through an optical contact liquid or an optically transparent adhesive sheet L. Is a transparent film 2 such as PET laminated on one surface of the photosensitive material layer 1 and a colored film N provided via an optical contact liquid or an optical pressure-sensitive adhesive sheet L. FIG. 2 shows an optical contact liquid or an optical pressure-sensitive adhesive sheet L on one transparent film 2 in which transparent films 2 and 3 are laminated on both sides of a photosensitive material layer 1 as shown in FIG.
The colored film N is provided via the. Figure 3
Is a color film N provided on the other transparent film 3 shown in FIG. 2 via an optical contact liquid or an optical pressure-sensitive adhesive sheet L.

In the case of FIGS. 4 to 6, the photosensitive material layer 1 is used.
4 is a structure in which a colored film N or a transparent film T provided with an antireflection coating layer C is adhered to at least one surface of the photosensitive film through an optical contact liquid or an optically transparent pressure-sensitive adhesive sheet L. FIG. P laminated on one side of layer 1
A colored film N or a transparent film T provided with an antireflection coating layer C is provided on a transparent film 2 such as ET via an optical contact liquid or an optical adhesive sheet L. FIG. 5 shows one of the transparent films 2 of which the transparent films 2 and 3 are laminated on both sides of the photosensitive material layer 1 as shown in FIG.
On top, through the optical contact liquid or the optical adhesive sheet L,
The colored film N or the transparent film T provided with the antireflection coating layer C is provided. In FIG. 6, a colored film N is provided on the other transparent film 3 in FIG. 5 via an optical contact liquid or an optical pressure-sensitive adhesive sheet L.

In FIGS. 7 to 9, instead of the optical contact liquid or the optical adhesive sheet L of FIGS. 1 to 3, an optical adhesive layer S is provided on the contact surface of the colored film N with the transparent films 2 and 3. Is.

10 to 12, instead of the optical contact liquid or the optical pressure sensitive adhesive sheet L shown in FIGS. 4 to 6, the optical pressure sensitive adhesive layer S is provided on the adhesion surface of the colored film N or the transparent film T with the transparent films 2 and 3. Is provided.

By using the hologram recording film described above, for example, the recording film F shown in FIG. 2, in an arrangement as shown in FIG. 13, it is brought into close contact with the reflection hologram original plate M through an optical contact liquid or an optical adhesive sheet L '. Then, the laser light 22 from the laser 20 is emitted from the recording film F side to the optical system 2
When performing replication by irradiating through 1 (Japanese Patent Application No. 4-766)
No. 52), in the case of the conventional film constitution (FIG. 15), since the colored films 4 and 5 were directly laminated on the photosensitive material layer 1, the colored films 4 and 5 could be used only once. However, for example, in the case of the recording film F shown in FIG. 2, the colored film N can be peeled off after the irradiation of the laser beam, and thus the peeled colored film N is applied to an unrecorded film as shown in FIG. By re-adhering it through the transparent adhesive sheet L, as shown in FIG.
By supplying to the recording optical system such as No. 3, the cost can be reduced.

Examples will be described below. (Example 1) As shown in FIG. 2, a colored film N (Clear Color No. manufactured by Kimoto Co., Ltd.) was added to a film (for example, OmniDex352 manufactured by DuPont) in which the photosensitive material layer 1 was sandwiched with transparent films 2 and 3. .15
Etc.) were brought into close contact with each other through the optical contact liquid L (xylene).
Using this film F, a hologram was duplicated by an optical system as shown in FIG. That is, the recording film F is brought into close contact with the reflection hologram original plate M through the optical contact liquid L ′ (xylene), and exposed by the optical system 21 using the argon laser 20 (wavelength 514.5 nm) to obtain the reflection hologram. Recording was performed by causing reflected diffracted light from the original plate M and incident light to interfere with each other. After the exposure, the colored film N was peeled off from the recording film F, the unrecorded photosensitive material was brought into close contact again with the optical contact liquid L, and the hologram laser was exposed by the argon laser 20 to repeat the hologram duplication operation.
In each case, a clear hologram copy with little noise was obtained.

(Example 2) A film in which the photosensitive material layer 1 is sandwiched by transparent films 2 and 3 (for example, Du
As shown in FIG. 2, a colored film N (Clear Color No. 15 manufactured by Kimoto Co., Ltd.) is optically transparent to an optically transparent adhesive sheet L (for example, MC tape manufactured by Nitto Denko Co., Ltd.). 3M 941
(5 etc.). Using this film F,
A hologram was duplicated with an optical system as shown in FIG. That is, the recording film F is brought into close contact with the reflection hologram original plate M through an optically transparent adhesive sheet L ′ (for example, MC tape manufactured by Nitto Denko Corporation, 9415 manufactured by 3M Co., Ltd.), and the argon laser 20 ( Wavelength 514.
(5 nm) was used for exposure, and recording was performed by causing reflected diffracted light from the reflection hologram original plate M and incident light to interfere with each other. After the exposure recording, the coloring film N is peeled off from the recording film F, the unrecorded photosensitive material is again brought into close contact with it through the optically transparent adhesive sheet L, and the hologram laser is exposed by the argon laser 20 to repeat the hologram duplication operation. As a result, a clear hologram copy with little noise was obtained.

[0025]

As is apparent from the above description, according to the hologram recording film and the hologram recording method of the present invention, at least one surface of the photosensitive material is provided with a colored film, a colored film coated with an antireflection coating layer, or , A transparent film coated with a non-reflective coating layer is adhered through an optical contact liquid or an optically transparent pressure-sensitive adhesive sheet, so that a pressing mechanism such as a roller is used to quickly make the optical contact liquid have a uniform thickness. It is also possible to avoid the influence of vibration during exposure. Furthermore, after exposure, a colored film, a colored film coated with an antireflection coating layer,
Alternatively, the transparent film coated with the antireflection coating layer can be peeled off and reused.

It should be noted that, through an optically transparent adhesive sheet, a colored film having an adhesive property, a colored film having an adhesive property coated with an antireflection coating layer, or an adhesive film coated with an antireflection coating layer. By using a transparent film, the drying process of the exposed photosensitive material film can be simplified.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a hologram recording film according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a hologram recording film in a second example.

FIG. 3 is a sectional view of a hologram recording film in a third embodiment.

FIG. 4 is a sectional view of a hologram recording film in a fourth example.

FIG. 5 is a sectional view of a hologram recording film in a fifth example.

FIG. 6 is a sectional view of a hologram recording film in a sixth example.

FIG. 7 is a sectional view of a hologram recording film of a seventh example.

FIG. 8 is a sectional view of a hologram recording film in an eighth example.

FIG. 9 is a sectional view of a hologram recording film in a ninth example.

FIG. 10 is a sectional view of a hologram recording film in a tenth example.

FIG. 11 is a cross-sectional view of a hologram recording film of Example 11.

FIG. 12 is a sectional view of a hologram recording film in a twelfth embodiment.

FIG. 13 is a diagram showing an arrangement for performing hologram replication from a reflective original plate.

FIG. 14 is a cross-sectional view of a conventional hologram recording film.

FIG. 15 is a cross-sectional view of another conventional hologram recording film.

16 is a cross-sectional view showing a layer structure when an original copy is performed using the film of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Photosensitive material layer 2, 3 ... Transparent film 20 ... Laser 21 ... Optical system 22 ... Laser light L ... Optical contact liquid, optical adhesive sheet S ... Optical adhesive layer N ... Colored film C ... Non-reflective coating layer T ... Transparent film F ... Hologram recording film M ... Reflective hologram original plate L '... Optical contact liquid, optical adhesive sheet

Claims (4)

[Claims] 1. A colored film, a colored film coated with a non-reflective coating layer, or a transparent film coated with a non-reflective coating layer on at least one surface of a photosensitive material obtained by laminating a transparent film on one surface or both surfaces of a photosensitive material layer. A holographic recording film, characterized in that the film is adhered via an optical contact liquid or an optically transparent adhesive sheet. 2. A colored film having an adhesive property on at least one surface of a photosensitive material obtained by laminating a transparent film on one surface or both surfaces of a photosensitive material layer, an adhesive colored film coated with a non-reflective coating layer, or A hologram recording film, characterized in that a transparent transparent film having a non-reflective coating layer is adhered thereto. 3. A hologram recording method, characterized in that the hologram recording film according to claim 1 or 2 is brought into close contact with a hologram original plate directly or via a transparent body, and the hologram original plate is duplicated by irradiating a laser beam. 4. After copying, the colored film adhered to the photosensitive material, the colored film coated with an antireflection coating layer, or the transparent film coated with an antireflection coating layer is peeled off and reused. The hologram recording method according to claim 3.