Process for producing original hologram film
AssigneeDai Nippon Printing Co., Ltd.
InventorsDaijiro Kodama, Masachika Watanabe, Hiroyuki Otaki
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Abstract
In order to prevent decrease in diffraction efficiency that is brought about when the diffraction peak wavelength shifts due to, for example, the shrinkage of a volume-hologram-recording photosensitive material layer 1, the present invention provides an original volume hologram film 10. The original volume hologram film 10 has a volume-hologram-recording photosensitive material layer 1 provided on a film 2, and an adhesive layer 8 provided on a film 9. The films 2 and 9 are affixed to each other with the layer 1 and 8 facing each other. The volume hologram has been recorded in the layer 1. The layer 8 can migrate an ingredient to the layer 1 to shift the diffraction peak wavelength to the opposite side.
Claims10
A process for producing an original hologram film, comprising the steps of:
- preparing a hologram-recording film having a recording layer of a volume-hologram-recording photosensitive material in which a volume hologram has been recorded, and a film for controlling a wavelength of diffracted light, having an adhesive material layer that comprises an adhesive agent and an ingredient that can migrate to the recording layer to shift a diffraction peak wavelength for the volume hologram recorded in the recording layer;
- and
- affixing the film for controlling the wavelength of diffracted light to the hologram-recording film with the recording layer and the material layer facing each other.
An original hologram film comprising:
- a recording layer of a volume-hologram-recording photosensitive material in which a volume hologram has been recorded;
- and
- an adhesive material layer laminated to the recording layer,
- wherein the adhesive material layer comprises an adhesive agent and an ingredient that can migrate to the recording layer to shift a diffraction peak wavelength for the volume hologram recorded in the recording layer.
A process for duplicating a hologram, comprising the steps of:
- preparing an original hologram film including a recording layer of a volume-hologram-recording photosensitive material in which a volume hologram has been recorded by using a photographing bean having a predetermined wavelength, and an adhesive material layer laminated to the recording layer, containing an adhesive agent and an ingredient that can migrate to the recording layer to shift a diffraction peak wavelength for the volume hologram recorded in the recording layer;
- placing a hologram-recording film on the original hologram film, and
- recording, in the hologram-recording film, the volume hologram that has been recorded in the original hologram film, by using a duplicating beam having a predetermined wavelength.
Dependencies are inferred from the claim text.