Film pack for small format film sheets
US4229090A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 1978 |
| Grant date | Oct 21, 1980 |
| Priority date | — |
| Expiry date | May 2, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/44
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A film pack for small format, self-processing film sheet assemblies and by which such film sheet assemblies may be exposed and processed by instant camera designed for larger format, standard film sheets. The small format film pack has the same exterior dimension as the standard film pack but positions the small format sheet properly for exposure in the camera. Movement of a camera carried film pick is transmitted to the reduced format film sheets by a pick relay which may include a mechanism for amplifying the distance of camera pick movement. A mask is provided for the camera viewfinder to correlate the size of a subject image to that of the reduced image format of the film sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.