Built-in flash camera
US5752093A · kind A · utility
5Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1997 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Sep 16, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An active type focusing part, including a projector and a light acceptor, is capable of measuring a reflectance of the main subject. When a distance measured by the focusing part is smaller than a predetermined distance, the reflectance is measured. A strobe light control part controls a strobe light in accordance with the measured distance, the measured reflectance, and a brightness measured by a photometry part. The strobe light control part decreases an exposure of the strobe light as the measured reflectance increases, so that the exposure of the strobe light is set appropriately.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.