High efficiency holograms by multiple-layer holography
US5162927A · kind A · utility
27Cited by
16References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1988 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | Jun 15, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method is disclosed for forming a multi-layer holographic device 22. A first hologram is formed on a major surface of a substrate 14. The first hologram is desensitized to prevent interaction with a second subsequently formed hologram. The second hologram is formed conterminous with said first hologram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.