Document Type and Number:
Japanese Patent JPS5023821
Kind Code:
A
Abstract:
A motion picture film having a soundtrack which is visible light-transparent, but fluoresces in the visible spectrum when submitted to ultra-violet radiation, and unexposed film for providing the product, and the method for producing the exposed and unexposed films including such soundtrack.
Application Number:
JP476374A
Publication Date:
March 14, 1975
Filing Date:
December 26, 1973
Export Citation:
International Classes:
G03B31/00; G03B31/02; (IPC1-7): G11B7/24