Hologram
US6075626A · kind A · utility
135Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1998 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Jun 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2260/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A hologram has a hologram element 3 containing a photopolymer and a cover film 22 and cover plate 21 which cover its surfaces. An adhesive 1 is used for bonding the cover film to the hologram element and the cover plate to the hologram element. The hologram has excellent humidity resistance, chemical resistance, solvent resistance and heat resistance, prevents coloration, can maintain its holographic properties and allows easy repositioning of the hologram element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.