Silver halide photographic emulsions for use in flash exposure
US4147542A · kind A · utility
23Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1977 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Oct 28, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide photographic material for use in flash exposure of less than 1/10000 second comprising 10.sup.-8 to 5.times. 10.sup.-7 moles/moles of silver halide of at least one compound belonging to Group VIII of the Periodic Table and at least one of the sensitizing dyes of the following formulas (I) or (II) and which is capable of sensitizing silver halide at less than 55 nm: General Formula I ##STR1## General Formula II ##STR2## WHEREIN R, R.sub.1, R.sub.2, R.sub.3, Q, X.sup.(-), Z, Z.sub.1, Z.sub.2, n, n.sub.1, n.sub.2 and n.sub.3 are as defined in the specification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.