Process for making high efficiency phase holograms
US4510221A · kind A · utility
6Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1983 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | Aug 1, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C5/44
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for producing a phase hologram having a high diffraction efficiency which includes treating a developed photographic material with a stop bath containing sodium sulfate, bleaching with a tanning bleach having a low pH value and fixing the bleached material in a bath containing sodium thiosulfate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.