Silver halide photographic materials
US5037733A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1989 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Nov 28, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide photosensitive material comprising a support having thereon at least one silver halide emulsion layer containing silver halide grains. These silver halide grains are obtained by subjecting the surface of silver halide grains to halogen conversion. These silver halide grains are essentially silver iodide free silver chlorobromide. They have a plurality of internal layers of different halogen compositions and contain at least one bridged pentamethine cyanine dye compound represented by the general formula (I) or (I'): ##STR1## and one compound represented by general formula (II): ##STR2## The variables in the above formulas are defined in the instant specification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.