Silver halide tabular grain emulsion
US6878512B2 · kind B2 · utility
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15References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2003 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Oct 30, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2001/0357
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a new silver halide tabular grain emulsion, wherein said silver halide emulsion comprises tabular grains having average thickness lower than 0.15 μm, an average diameter of at least 1.20 μm and an average aspect ratio of at least 8:1, and showing a coefficient of diameter variation COVd within the range of from 31% to 44% and a coefficient of thickness variation COVt lower than 25%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.