Spectrally sensitized octahedral emulsions with buried shell sensitization
US5268264A · kind A · utility
4Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1991 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Apr 10, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic emulsion is disclosed in which a spectral sensitizing dye is adsorbed to the surface of octahedral silver bromide grains optionally containing iodide. The grains each contain a buried shell formed in the presence of a hexacoordination complex of iron and at least three cyanide ligands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.