Claims
- 1. A hologram comprising a hologram element containing a photopolymer and at least one film covering one or both sides of said hologram element, wherein the hologram element and the cover film are bonded with an adhesive containing a component which absorbs an acid component.
- 2. A hologram according to claim 1, wherein said adhesive has a functional group which is capable of absorbing an acid component.
- 3. A hologram according to claim 1, wherein said adhesive comprises at least one selected from the group consisting of natural rubber, polyisoprene, styrene-butadiene rubber, butyl rubber, polyisobutylene, butyl polyacrylate, 2-ethylhexyl polyacrylate, polyacrylic acid, silicone rubber and polyvinyl butyl ether.
- 4. A hologram according to claim 1, wherein said cover film comprises at least one selected from the group consisting of polyethylene terephthalate, triacetyl cellulose, acryl and urethane films.
- 5. A hologram according to claim 1, wherein said hologram is a hologram combiner which transmits external light to produce a visible image for the viewer while also diffracting a signal beam containing display data to produce visible diffracted light for the viewer.
- 6. A hologram according to claim 1, wherein said hologram is a hologram screen.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9-185879 |
Jun 1997 |
JP |
|
Parent Case Info
This is a division of application Ser. No. 09/100,491, now U.S. Pat. No. 6,752,626 filed Jun. 22, 1998.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4908285 |
Kushibiki et al. |
Mar 1990 |
|
5270120 |
Andrews et al. |
Dec 1993 |
|
5731060 |
Hirukawa et al. |
Mar 1998 |
|
Foreign Referenced Citations (6)
Number |
Date |
Country |
57-6878 |
Jan 1982 |
JP |
64-40882 |
Feb 1989 |
JP |
5-203812 |
Aug 1993 |
JP |
6-56484 |
Mar 1994 |
JP |
3-157684 |
Mar 1994 |
JP |
7-315893 |
Dec 1995 |
JP |