Control device for preventing red-eye effect on camera
US5400113A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1994 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Jan 18, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera capable of operating in a red-eye prevention mode. The camera has an electronic flash device which is activated by a drive circuit in synchronization with the exposure. The electronic flash device also serve as a pre-light-emission device capable of performing pre-light-emission for the purpose of preventing red-eye effect. When it is judged from the photographing condition that red-eye effect may occur, a controller activates the electronic flash device to effect a pre-light-emission for reducing the size of pupils of eyes of a person to be photographed, before the main flashing which is executed in synchronization with the exposure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.