Self-developing camera and film pack therefore
US4090211A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1974 |
| Grant date | May 16, 1978 |
| Priority date | — |
| Expiry date | Nov 27, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D9/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera which permits film units to be initially stored as a plurality of first sheets and an equal number of second sheets. In taking a photograph, a first sheet is exposed and then transferred into correctly aligned contact with a corresponding second sheet, which may constitute a subsequently sealable folder or envelope for containment of the first sheet, or a cover which is bondable to the first sheet. This transfer of a first sheet is effected entirely independently in the camera, or by a camera mechanism acting on a draw mechanism attached firmly but not fixedly to the first sheet, in this latter case the draw mechanism being detached from the first sheet immediately subsequent to transfer thereof into association with the second sheet. The semifilm unit constituted by the assembled first sheet and second sheet is then removed to the exterior of the camera to form a complete film unit in which, the first sheet and second sheet are bonded together, and, if the semi-film unit is an auto-process type film unit, simultaneous processing thereof is effected during this removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.