Counter device for multiple exposure in a camera
US4191463A · kind A · utility
6Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1978 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | Jun 16, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B1/66
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A counting device for counting the number of exposures for a given frame of film in a multiple exposure camera is operable by the winding mechanism of the camera after the film winding spools have been disengaged therefrom. A means is provided for enabling the counter while simultaneously disengaging and locking the film spools and both mechanical and electrical exposures counters are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.