Camera with an electronic timer and including an electro-mechanical delayed action stop for the shutter drive
US4047210A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1975 |
| Grant date | Sep 6, 1977 |
| Priority date | — |
| Expiry date | Jun 19, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/083
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera is provided having an electronic timer controlled by ambient light. There is provided an electromechanical delayed action stop for the shutter. An electronic delay device is provided for temporarily delaying the action of the shutter of the camera after it has been released. An electronic switching device is provided including a signal lamp which is connected to the two poles of a battery. The switching device is so controlled in dependence upon the action of the delay device tht the signal lamp emits a distinctive light signal during the action of the delaying device and the subsequent exposure. A flashing circuit is arranged to provide a flashing signal during the delay period, the circuit being arranged to operate the lamp continuously during the exposure period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.