Other

Peter A Custer

George R Bird

A fluorescent soundtrack readout system for decoding the digital soundtrack of a motion picture film employing ultraviolet light directed onto the surface of the soundtrack film to cause the digital indicia thereon to emit visible light and for transmitting the emitted visible light to a photodiode array to detect same.

Fluorescent soundtrack readout system

A motion picture film having a plurality of digitally coded soundtracks which are colorless and transparent to visible light and which fluoresce when exposed to ultraviolet light, unexposed film for providing the product, and the method for producing the product and methods for producing the exposed and unexposed films. The soundtrack images which overlie at least a portion of the visible image area of the film are digitally coded on the film using an electrostatic imaging system to imprint a fluorescent toner. The toner may comprise a fluorescent polymer having covalently bonded 3-phenyl-7-(amido or imido)-coumarin or certain substituted stilbene or N-alkyl-4-aminonaphalimides.

Motion picture film having digitally coded soundtrack and method for

A motion picture film having a plurality of digitally coded soundtracks which are colorless and transparent to visible light and which fluoresce when exposed to ultraviolet light, unexposed film for providing the product, and the method for producing the product and methods for producing the exposed and unexposed films. The soundtrack images which overlie at least a portion of the visible image area of the film are digitally coded on the film using an electrostatic imaging system to imprint a fluorescent toner. The toner may comprise a fluorescent polymer having covalently bonded 3-phenyl-7-(amido or imido)-coumarin or certain substituted stilbenes or N-alkyl-4-aminonaphalimides.

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.

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Newtown, PA, United States of America

Peter A Custer