Image projector with liquid crystal light shutter
US4699498A · kind A · utility
25Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1986 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Sep 8, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0435
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an improved image projector with liquid crystal light shutter, a layer of ferroelectric liquid crystals contained in a liquid crystal light shutter at which the light modulated linearly in accordance with image signals is produced is of the thickness of less than a helical pitch of molecules of the liquid crystals whereby a response time becomes as fast as, for instance, 0.18 ms and the time sharing operation can be performed in the liquid crystal light shutter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.