Exposure and view finder orientation switching mechanism for a camera
US6064834A · kind A · utility
3Cited by
12References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 28, 1997 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Feb 28, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
When a switching lever is positioned for horizontal photographing, an exposure frame composed of two switching frames is switched to a horizontal photographing exposure frame. When the switching lever is positioned for vertical photographing, a wheel ring starts rotating about a photographic optical axis, and the switching frames start moving by the operation of elongated holes. When the switching lever is positioned for vertical photographing, the exposure frame composed of two switching frames is switched to a vertical photographing exposure frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.