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    • 2. 发明申请
    • Silver halide photographic emulsion
    • 卤化银照相乳剂
    • US20030008249A1
    • 2003-01-09
    • US10050580
    • 2002-01-18
    • FUJI PHOTO FILM CO., LTD.
    • Hideo Ikeda
    • G03C001/035G03C001/09G03C001/08G03C001/34
    • G03C1/0051G03C1/09G03C1/346G03C5/50G03C7/30G03C2001/0056G03C2001/03535G03C2001/0357G03C2001/097G03C2200/03G03C2200/40
    • A silver halide photographic emulsion wherein a variation coefficient of an equivalent-circle diameter of all the silver halide grains is 40% or less, and 50% or more of the total projected area is occupied by tabular grains satisfying requirements (i) to (v): (i) silver iodobromide having (111) faces as principal surfaces; (ii) the equivalent-sphere diameter of 0.5 nullm or less, a thickness of 0.20 nullm or less, and an average aspect ratio of 3 or more; (iii) a silver iodide content of 2 mol % or more and 6 mol % or less; (iv) a multiple-structure having a quintuple structure or more in which a silver iodide distribution has at least two maximums from a center to an edge, the first maximum is in a range of 3 to 25% by a silver amount constituting grains, and the second maximum is in a range of 50 to 80%; and (v) ten or more of dislocation lines per grain are present at a fringe portion.
    • 一种卤化银照相乳剂,其中所有卤化银颗粒的当量圆直径的变异系数为40%以下,总投影面积的50%以上占满了满足要求(i)〜(v ):(i)具有(111)的碘溴化银面为主面; (ii)等效球直径为0.5μm以下,厚度为0.20μm以下,平均纵横比为3以上; (iii)碘化银含量为2摩尔%以上且6摩尔%以下; (iv)具有五重结构或更多的多元结构,其中碘化银分布从中心到边缘具有至少两个最大值,第一最大值在构成颗粒的银量的3至25%的范围内, 第二最大值在50〜80%的范围内。 和(v)每个晶粒的十个或更多个位错线存在于边缘部分。