Silver halide photographic emulsions
US4552837A · kind A · utility
6Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1984 |
| Grant date | Nov 12, 1985 |
| Priority date | — |
| Expiry date | Apr 11, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide color photographic emulsion is described, containing at least one sensitizing dye represented by formula (I) and at least one compound represented by formula (II). The use of compounds of formula (I) in combination with compounds of formula (II) permits the spectral sensitization of photographic emulsions without extending the wavelength region of spectral sensitivity, enabling the production of a light-sensitive material of high sensitivity and reduced fog. ##STR1## (The symbols V, W.sub.1, W.sub.2, R.sub.1, R.sub.2, R.sub.3, X, n, R.sub.5, Y, X.sub.1, m.sub.1 and m.sub.2 are as defined in the appended claims).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.