High bromide tabular grain emulsions with edge placement of epitaxy
US6114105A · kind A · utility
3Cited by
13References
12Claims
0Family size
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Key dates
| Filing date | Apr 13, 1999 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Apr 13, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/03
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high bromide {111} tabular grain emulsion is disclosed in which most of the tabular grains exhibit silver salt epitaxy at a single site. Most of the silver halide epitaxy sites contact an edge region of the tabular grains. These emulsions exhibit chemical sensitization by the epitaxy and surprising lower levels of desensitization by spectral sensitizing dyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.