Flash camera
US4213681A · kind A · utility
5Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1978 |
| Grant date | Jul 22, 1980 |
| Priority date | — |
| Expiry date | Apr 12, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2215/0503
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A combination of a film cartridge loading type camera with an electronic flash of the type wherein a flash lamp converts into a flash of light the energy stored in a main flash capacitor by a DC-DC converter. An optimum exposure may be ensured depending upon the speed of the film used, upon the distance to a subject and upon whether or not the flash is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.