Photographic emulsions of enhanced sensitivity
US5728517A · kind A · utility
6Cited by
16References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | May 31, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2001/03558
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Tabular grain emulsions of enhanced photographic sensitivity are disclosed in which the tabular grains contain a maximum surface iodide concentration along their edges and a lower surface iodide concentration within their corners than elsewhere along their edges. The grains contain a dopant capable of providing shallow electron trapping sites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.