Camera with liquid crystal aperture control means
US4431288A · kind A · utility
85Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1982 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | May 14, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/095
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera with a liquid crystal aperture stop means has a shift means adapted to shift the liquid crystal aperture stop means between a plurality of positions depending upon exposure conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.