SLR Mirror and shutter rebound prevention mechanism
US4245904A · kind A · utility
1Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 24, 1979 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | Jul 24, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B19/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A mirror and shutter rebound preventing mechanism in a lens shutter type single-lens reflex camera having a shutter release lever for preliminarily closing a shutter. A shutter blade release ring with a release ring pin follows the shutter release lever and a shutter rebound prevention lever follows the release ring pin. A mirror lifting plate includes pins to drive the two levers. The mirror lifting plate drives the shutter release lever and shutter bound preventing lever before a mirror is lifted. The mirror lifting plate has a protrusion which holds the mirror when the mirror is lowered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.