发明名称 Silver halide photographic emulsion and light-sensitive material containing the same, and image-forming method using the light-sensitive material
摘要 There is disclosed a silver halide photographic emulsion comprising silver halide grains, wherein 50% or more of the projected area of the silver halide grains to be contained is occupied by tabular grains having an aspect ratio of 2 or more and a grain thickness of 0.2 mum or less, with the tabular grains each having a phase with the content of silver bromide being 10% or more, and wherein in the phase, the tabular grains each contain a metal complex dopant in an amount necessary to increase the density of a dislocation. This emulsion produces high contrast and better granularity while it has high sensitivity. Further, there is also disclosed a silver halide photographic emulsion, wherein the average equivalent-circle diameter of the total tabular grains among the silver halide grains contained is 2.0 to 4.0 mum, and the tabular grains contain at least one metal complex having, as a ligand, a heterocyclic compound in a number more than half of the coordination number of the metal atom. This emulsion has high sensitivity and excellent photographic characteristics exhibiting little change of gradation upon exposure to high-intensity illumination. In addition, the present invention provides a silver halide color photographic light-sensitive material using the emulsion, and a color image forming process that is simple and rapid and places little load on the environment, using the material.
申请公布号 US6335154(B1) 申请公布日期 2002.01.01
申请号 US20000533326 申请日期 2000.03.22
申请人 FUJI PHOTO FILM CO., LTD. 发明人 ASAMI MASAHIRO;KIKUCHI MAKOTO;SATO TADANOBU
分类号 G03C1/005;G03C1/08;G03C1/42;G03C8/40;(IPC1-7):G03C1/035;G03C1/09 主分类号 G03C1/005
代理机构 代理人
主权项
地址