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    Photographic silver halide emulsion comprising epitaxial composite silver halide crystals, silver iodobromide emulsion and process for preparing the same
    2.
    发明公开
    Photographic silver halide emulsion comprising epitaxial composite silver halide crystals, silver iodobromide emulsion and process for preparing the same 失效
    与复合材料和外延晶体的照相乳剂碘溴化乳剂，和制造方法。

    公开(公告)号：EP0019917A2

    公开(公告)日：1980-12-10

    申请号：EP80102999.2

    申请日：1980-05-29

    申请人： KONICA CORPORATION

    发明人： Koitabashi, Takeo ,  Matsuzaka, Syozi ,  Iijima, Toshifumi

    IPC分类号： G03C1/02

    CPC分类号： G03C1/035 ,  G03C2001/03552 ,  G05B2219/37405

    摘要： There are provided a photographic silver halide emulsion characterized in that it comprises composite silver nalide crystals consisting essentially of multi-faceted silver iodobromide crystals containing 15-40 mole% of silver iodide and silver halide crystals containing not more than 10 mole% of silver iodide, said silver halide crystals being combined as epitaxial silver halide crystals with said mul- tifaceted silver iodobromide crystals, at least half of the facetes of said multi-faceted crystals being substantially free of said epitaxial crystals and the amount of said epita- xial crystals being limited to not more than 75 mole% based on the total silver halide forming said composite crystals, a silver halide emulsion characterized in that it comprises silver halide grains consisting essentially of silver iodobromide containing 1 5 -40 mole% of silver iodide substan- tially homogeneously distributed therein, and a process for preparing the same.