1
Karl H Drexhage: Color imaging devices and color filter arrays using photo-bleachable dyes. Eastman Kodak Company, James R Everett, August 17, 1982: US04345011 (68 worldwide citation)

Color filter arrays for color imaging devices are disclosed. The arrays are formed in a single layer of a transparent binder containing at least one cationic photo-bleachable dye. The layer has a thickness less than 10 microns, and the dye is present in the layer in an amount sufficient to impart a ...


2
Karl H Drexhage: Color imaging devices and color filter arrays using photo-bleachable dyes. Eastman Kodak Company, John R Everett, November 22, 1983: US04416961 (65 worldwide citation)

Color filter arrays for color imaging devices are disclosed. The arrays are formed in a single layer of a transparent binder containing at least one cationic photo-bleachable dye. The layer has a thickness less than 10 microns, and the dye is present in the layer in an amount sufficient to impart a ...


3
Karl H Drexhage: Color imaging devices and color filter arrays using photo-bleachable dyes. Eastman Kodak Company, J Jeffrey Hawley, January 27, 1981: US04247799 (7 worldwide citation)

Color filter arrays for color imaging devices are disclosed. The arrays are formed in a single layer of a transparent binder containing at least one cationic photo-bleachable dye. The layer has a thickness less than 10 microns, and the dye is present in the layer in an amount sufficient to impart a ...


4
Karl H Drexhage, Joseph J Wrobel: Light control device and fabrication methods therefor. Eastman Kodak Company, John D Husser, July 15, 1980: US04212519 (3 worldwide citation)

Light-control devices of the type having field-orientable, light-control elements supported in a solid elastomeric matrix are constructed in a manner providing improved uniformity in light-control and, in image display uses, improved resolution and contrast. Features of the improved construction inc ...


5
Karl H Drexhage: Process for replacing anions or organic cationic salts. Eastman Kodak Company, Arthur H Rosenstein, June 18, 1985: US04524204

A process for replacing and recovering the anion of an acid-stable organic cationic salt comprises the steps of: