发明授权
US6001548A Color photographic film with a plurality of grain populations in its red
recording layer unit
失效
在其红色记录层单元中具有多个颗粒群的彩色摄影胶片
- 专利标题: Color photographic film with a plurality of grain populations in its red recording layer unit
- 专利标题(中): 在其红色记录层单元中具有多个颗粒群的彩色摄影胶片
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申请号: US292421申请日: 1999-04-15
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公开(公告)号: US6001548A公开(公告)日: 1999-12-14
- 发明人: Joseph F. Bringley , James A. Friday
- 申请人: Joseph F. Bringley , James A. Friday
- 申请人地址: NY Rochester
- 专利权人: Eastman Kodak Company
- 当前专利权人: Eastman Kodak Company
- 当前专利权人地址: NY Rochester
- 主分类号: G03C7/20
- IPC分类号: G03C7/20 ; G03C1/035 ; G03C1/76 ; G03C7/30 ; G03C7/392 ; G03C1/46
摘要:
A color photographic element is disclosed comprised of a transparent film support and, coated on the support, a red recording layer unit containing the latent image forming silver halide grains in a plurality of emulsion layers with the latent image forming silver halide grains of maximum sensitivity being the first red recording emulsion layer to receive exposing radiation and containing randomly oriented red light scattering silver halide grains free of adsorbed spectral sensitizing dye. An optional layer coated beneath first layer contains tabular silver halide grains to reflect red light. Improvements in imaging speed with improvements or relatively low losses in image sharpness are realized.