Film units for photography of diffusive transfer process type
US4358523A · kind A · utility
1Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1980 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Sep 29, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a film unit for photography of the diffusive transfer process type including a photosensitive sheet, a mask defining an image border definition with an aperture provided therein, a pod for a processing liquid, etc., bordering portions of the photosensitive sheet underlying the image border definition are formed of dried dummy liquid layers in place of the normal layers constituting the photosensitive sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.