Photochromic lithium niobate and method for preparing same
US3933504A · kind A · utility
10Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1973 |
| Grant date | Jan 20, 1976 |
| Priority date | — |
| Expiry date | Nov 19, 1993 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2260/54
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Photochromic lithium niobate crystals containing iron and either manganese or copper are useful for recording phase holograms in the photosensitive state of the crystals, which holograms can be permanently fixed and read out without loss in the quality of the image obtained therefrom over extended periods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.