Holographic material
US4759594A · kind A · utility
3Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1987 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Apr 6, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Holographic material comprising on a light transparent base at least two silver halide emulsion layers wherein the shrinking factor SF, the ratio of the replay wavelength or the ratio of the thicknesses of the layer before and after processing, of each of the layers differs at least by 0.02.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.