Camera provided with a rear surface switch
US5745813A · kind A · utility
1Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1996 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Apr 22, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera provided with a rear surface switch includes a pressure plate. The pressure plate maintains film in a flattened alignment within a film exposure region of the camera. An external cover encloses a rear of the pressure plate. A switch includes a movable operational member that protrudes from the cover. An electrical conductive member is attached to the rear of the pressure plate. An electrical signal is output in accordance with the movement of the operational member. The operational force resulting from the movement of the operational member is supported by the pressure plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.