Silver halide photographic emulsion
AssigneeFUJIFILM Corporation
InventorsMikio Ihama, Hiroshi Kawakami, Takayoshi Mori
Life of this patent
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Abstract
A silver halide photographic emulsion comprising silver halide grains, wherein a variation coefficient of equivalent-circle diameters of all the silver halide grains is 30% or less, and 70% or more of the total projected area of the silver halide grains are occupied by silver halide grains each meeting requirements (i), (ii), and (iii) below: (i) silver bromochloroiodide grain having (111) faces as main planes, (ii) having an epitaxial portion junctioned to at least one apex portion thereof, and (iii) having at least one dislocation line in an epitaxial portion thereof.
Claims11
A silver halide photographic emulsion comprising silver halide grains, wherein a variation coefficient of equivalent-circle diameters of all the silver halide grains is 30% or less, and 70% or more of the total projected area of the silver halide grains are occupied by silver halide grains each meeting requirements (i), (ii), (iii) and (viii) below:
- (i) silver bromochloroiodide tabular grain having (111) faces as main planes,
- (ii) having an epitaxial portion junctioned to at least one apex portion thereof,
- (iii) having at least one mesh-like dislocation line in an epitaxial portion thereof, and
- (viii) hexagonal tabular grain in which the ratio of the length of an edge having a maximum length to the length of an edge having a minimum length is 2 or less.
Dependencies are inferred from the claim text.