Camera incorporated with a movable flash light device
US4357087A · kind A · utility
7Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1981 |
| Grant date | Nov 2, 1982 |
| Priority date | — |
| Expiry date | Mar 12, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2215/0507
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In the disclosed flash camera, a flash unit is movable between protruding and stowed positions, and a sensor senses whether a capacitor that flashes the unit is adequately charged. A switch and a control circuit enable the flash only when the unit is in the protruding position and the sensor simultaneously senses an adequate charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.