Cameras, methods, and systems with partial-shading encodements
US6728483B1 · kind B1 · utility
6Cited by
12References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Oct 11, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera has a body and a film holder having an exposure frame surrounding an exposure opening. A taking lens system is mounted to the body. The taking lens system has an optical axis. The taking lens system transmits a scene image through the exposure opening. A screener is mounted to the body. The screener is movable, relative to the exposure frame, between a primary position and a plurality of different secondary positions. The screener shadows the exposure frame differently in each secondary position. The exposure frame is unshaded when the screener is in the primary position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.