Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1991-11-06
1993-08-24
Baxter, Janet C.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430543, 430567, 430569, G03C 1035, G03C 146, G03C 732
Patent
active
052387968
ABSTRACT:
A silver halide photographic emulsion containing tabular silver halide grains which have an aspect ratio of 2 or more and in which dislocations are localized in a center portion of each grain. The tabular silver halide grains have a thickness of less than 0.5 .mu.m and a diameter of 0.3 .mu.m or more and account for at least 50% of a total projected area of the silver halide grains. This emulsion has a high sensitivity and good reciprocity characteristics. In a photographic light-sensitive material having at least two light-sensitive silver halide emulsion layers having different color sensitivities on a support, the above tabular silver halide photographic emulsion and at least one type of a coupler which is coupled with an oxidant of a color developing agent to develop a color are added to at least one of the emulsion layers, thereby obtaining a photographic light-sensitive material having a high sensitivity and good reciprocity characteristics.
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Maruyama Yoichi
Urabe Shigeharu
Baxter Janet C.
Fuji Photo Film Co. , Ltd.
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