Inherently stable high chloride tabular grains with improved blue absorption
US5395746A · kind A · utility
4Cited by
9References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 25, 1994 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Feb 25, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A radiation sensitive emulsion is disclosed that improves the light absorption of high chloride tabular grain emulsions in the longer wavelength half of the blue spectrum. The tabular grains each have a tabular substrate portion containing at least 50 mole percent chloride, based on silver, bounded by {100} major faces and a portion deposited on the substrate containing a silver salt exhibiting a higher solubility than silver iodide and a higher absorption of blue light at wavelengths longer than 450 nm than silver iodide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.