Liquid crystal light valve with birefringence compensation
US4466702A · kind A · utility
31Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1981 |
| Grant date | Aug 21, 1984 |
| Priority date | — |
| Expiry date | Apr 1, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention is a light valve using birefringent nematic liquid crystals in which compensation for residual birefringence is achieved by passing light through two separate liquid crystal layers having their major optical axes aligned perpendicular to one another at the interface between the two liquid crystal layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.