Control device for exposure-with-zooming photography
US4731629A · kind A · utility
29Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Apr 2, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B3/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In the camera having a zoom lens with an automatic operating mechanism therefor, a device for controlling co-ordination of the mechanism with a shutter, comprises an exposure-with-zooming actuator arranged upon first stroke to actuate the mechanism so that the zoom lens is set in one of the terminal ends of movement thereof, and upon second stroke to initiate a zooming operation of the zoom lens by the mechanism, and control means responsive to start of the zooming for initiating an exposure operation of the shutter to a photographic film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.