Process for making photographic emulsions and photographic elements and emulsions containing latent image forming units internally containing sensitizing dye
US5700608A · kind A · utility
17Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1996 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | Mar 19, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic element is described which comprises a silver halide emulsion having incorporated therein a latent image forming unit, said unit being comprised of an agglomeration of silver halide in conductive contact with a light absorbing center, wherein the center is comprised of: PA1 (i) an amorphous or liquid crystalline spectral sensitizing dye; or PA1 (ii) a plurality of spectral sensitizing dye crystals. Also described is a process for forming a silver halide emulsion and the emulsion prepared by such process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.