SILVER HALIDE EMULSION, METHOD FOR PREPARING THE SAME AND SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL

PROBLEM TO BE SOLVED: To provide a silver halide emulsion which improves storage stability and lowering of sensitivity and deterioration of image quality due to natural radiation, a method for preparing the silver halide emulsion and a silver halide photographic sensitive material. SOLUTION: In the...

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Hauptverfasser:	ISHIKAWA SADAYASU, KONDO AKIYA
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a silver halide emulsion which improves storage stability and lowering of sensitivity and deterioration of image quality due to natural radiation, a method for preparing the silver halide emulsion and a silver halide photographic sensitive material. SOLUTION: In the silver halide emulsion, 70-100% of the total projected area of all grains is occupied by tabular silver halide grains, the average aspect ratio (AR) of the tabular silver halide grains is 10-500, and when the average value of equivalent circular grain diameter of projected area is represented by D (μm) and the number ratio of tabular silver halide grains whose equivalent circular grain diameter of projected area is ≥(1+k(log10AR)0.5)D by N1(%), N1≤5 is satisfied in the case of k=0.4. COPYRIGHT: (C)2003,JPO