And Containing Plural Layers Sensitive To The Same Spectral Region Patents (Class 430/506)
  • Patent number: 4184876
    Abstract: Color photographic materials are disclosed having red-, green- and blue-sensitive silver halide emulsion layer units, which units contain faster and slower emulsion layers for each color sensitivity. In such materials it has been found that increased speed can be obtained by manufacturing the material so that, upon imagewise exposure, light strikes the relatively faster green- and red-sensitive layers before passing to the slower green- and red-sensitive layers, but after penetrating the blue-sensitive layer(s).
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: January 22, 1980
    Assignee: Eastman Kodak Company
    Inventors: Alan G. Eeles, Alan D. O'Neill