Camera system
US4967216A · kind A · utility
6Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1989 |
| Grant date | Oct 30, 1990 |
| Priority date | — |
| Expiry date | Aug 7, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/425
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera body adapted to detachably mount a motor drive device thereon, includes a first motor, a second motor, a film feeding transmission system arranged to be driven by the first motor serving as a drive source, a charging transmission system arranged to be driven by the second motor serving as a drive source, a detection circuit for detecting the mounting of the motor drive device on the camera body, and a motor-voltage control circuit for increasing a voltage applied to the first motor when the detection circuit has detected the mounting of the motor drive device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.