Photographic apparatus with automatic film type determination
US5109241A · kind A · utility
14Cited by
12References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1991 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Jan 30, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2206/008
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Photographic apparatus, such as a film recorder, uses the scanning mechanism provided for imaging photographic film to read the DX bar code on the film cassette. The DX bar code indicates the film type, film speed, and roll length. The bar code information is used to automatically set one or more parameters necessary for the proper exposure of the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.