Film information reading device
US4693574A · kind A · utility
30Cited by
3References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1985 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Jul 19, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In the disclosed camera, a reading device in the camera body's cartridge chamber reads electrically sensible data from a cartridge by determining the existence of data at one location of a data carrying surface on the cartridge and optically reading the remaining electrical data at the location of another data carrying surface. A positioning device positions a movable carrier member which holds optical detecting elements a specific distance form the other data carrying surface. Preferably the determination of the existence of data is performed by electrically contacting the one location of the data carrying surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.