Silver halide photographic light sensitive material

Details Silver halide photographic light sensitive material Silver halide photographic light sensitive material

1988-04-13

1990-03-20

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430572, 430576, 430577, 430584, 430611, 430944, G03C 120, G03C 128

Patent

active

049101293

ABSTRACT:
Disclosed is a silver halide photographic light sensitive material which has a silver halide emulsion layer optically sensitized with a sensitizing dye having a maximum spectral sensitivity in the region of at least 700 nm, said emulsion layer containing at least one compound represented by the following formula (I) or at least one compound represented by the general formula (I) and at least one compound represented by the general formula (II) in combination: ##STR1## (wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group, an aryl group, an aralkyl group, an alkenyl group, an amino group, an acylamido group or a sulfonamido group and sum of carbon atom numbers of R.sub.1 and R.sub.2 is 3 or more.); ##STR2## (wherein R.sub.3 represents an alkyl group of at least 3 carbon atoms or an aryl group).

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