Shutter release security device in motor drive camera
US4202617A · kind A · utility
2Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1978 |
| Grant date | May 13, 1980 |
| Priority date | — |
| Expiry date | May 17, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/425
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A locking device is provided for preventing the mirror release until the completion of the winding operation. In its preferred embodiment, the locking device comprises a locking lever pivotally mounted on the end of the lower curtain release lever and engaging a cut in the mirror release pin to prevent the movement thereof until the lower curtain release lever pivots at the end of the winding operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.