发明名称 |
Photographic materials with improved image tone |
摘要 |
A silver halide emulsion of average grain size 0.2 mu m or less comprising silver halide grains having a core and an outer shell, the core comprising at least 85 mol % of the total silver halide content of the grain and at least 50 mol % of the silver halide in the core being silver bromide, and the outer shell comprising silver halide of which greater than 50 mol % is silver chloride; the emulsion either containing no rhodium dopant, or containing rhodium dopant such that the concentration of said dopant is at least as great in the core as in the shell.
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申请公布号 |
US5851751(A) |
申请公布日期 |
1998.12.22 |
申请号 |
US19970784671 |
申请日期 |
1997.01.21 |
申请人 |
IMATION CORP. |
发明人 |
WALLIS, JULIAN M.;NAIRNE, ROBERT J. D.;ZINN-WARNER, ALEXIS |
分类号 |
G03C1/035;G03C1/06;G03C1/09;G03C1/35;(IPC1-7):G03C1/035;G03C1/10;G03C1/005 |
主分类号 |
G03C1/035 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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