Daytime strobo apparatus for cameras with electric shutters
US4079389A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1976 |
| Grant date | Mar 14, 1978 |
| Priority date | — |
| Expiry date | Jul 29, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2215/0514
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A daytime strobo apparatus is provided for a camera which includes an electric shutter, and a control circuit which controls the operation of the electric shutter in accordance with the amount of light incident on a photoelectric transducer element and which is operatively associated with or internally houses a strobo unit. The strobo apparatus comprises a strobo decision circuit in the control circuit which is responsive to the photoelectric transducer element, a decision level adjusting circuit for adjusting an input level from the transducer element to the decision circuit, an X-contact drive circuit responsive to the decision circuit, and the above strobo unit. The apparatus is operative to energize the strobo unit at a timing subsequent to the initiation of operation of the electric shutter which is determined by the operation of the various circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.