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Leopold Godowsky, Jr. : ウィキペディア英語版 | Leopold Godowsky, Jr.
Leopold Godowsky, Jr. (May 27, 1900 - February 18, 1983) was an American violinist and chemist, who together with Leopold Mannes created the first practical color transparency film, Kodachrome. ==Beginning== Mannes and Godowsky's experimentation with color photography began in 1917, after seeing the film ''(Our Navy )'' in Prizma Color, which was advertised as a color film. Because of the low quality the boys felt cheated and decided to do something about it. They designed a movie camera and projector each with three lenses covered by orange-red, green and blue-violet filters.〔US Patent 1,619,949 (filed June 28, 1920, issued March 8, 1927) page 1, lines 25-29 specifies this variant of the standard red, green and blue filter colors, which was also used by the then-current Autochrome process. However, the patent is mainly concerned with a two-color (red-orange and blue-green) implementation.〕 They took multiple black-and-white exposures and projected them back through the filters. They patented this system, but it was not a commercially viable process.
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