Strobe apparatus
US5453812A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1994 |
| Grant date | Sep 26, 1995 |
| Priority date | — |
| Expiry date | Feb 7, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2215/0553
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In this strobe apparatus which can be fitted to a camera having a strobe built-in or a camera, a flash comprises at least two flashing parts having respectively different light distribution characteristics, the distances to objects in a plurality of places within the photographed picture are measured and the flashing amounts adapted to the distances are operated to control the flashing amount of the flashing. Also, the flashing amounts of the first flashing part having non-uniform light distribution characteristics at the time of the full flashing within the photographed picture and the second flashing part having non-uniform light distribution characteristics substantially linearly symmetrical with the light distribution characteristics of said first flashing part with respect to the center axis are respectively independently controlled by a controlling circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.