Silver halide emulsion comprising substantially circular monodisperse tabular silver halide grains and photographic material using the same
US4977074A · kind A · utility
11Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1988 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Aug 17, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2001/0357
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide emulsion comprising a binder and silver halide grains, wherein the projected area of substantially circular tabular silver halide grains having two parallel twin planes to the basal planes having a linear ratio of 0 to 4/5 accounts for from 70% to 100% of the projected area of the whole silver halide grains, and further the circular tabular silver halide grains are monodisperse grains. The emulsion has good aging stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.