Camera having an aperture controllable shutter
US6088534A · kind A · utility
14Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1994 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Jun 15, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera provided with an aperture controllable shutter capable of determining exposure by varying aperture movement, and a photographic lens capable of varying focal length. In accordance with the focal length of the photographic lens, an aperture size or an aperture characteristic of the aperture controllable shutter is determined. A diaphragm of the aperture controllable shutter is driven based on the determined aperture size, aperture characteristic and object brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.