Light modulation apparatus, image pickup apparatus, and drive methods therefor
US7110155B2 · kind B2 · utility
9Cited by
15References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2004 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Apr 14, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed are a light modulation apparatus including a liquid crystal device; and a polarizing plate disposed in an optical path of light made incident on said liquid crystal device; wherein said liquid crystal device is of a guest-host type using a negative type liquid crystal as a host material, an image pickup apparatus using the light modulation apparatus, and methods of driving the light modulation apparatus and image pickup apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.