Composite polarized film for use in a weapon training simulator

Details Composite polarized film for use in a weapon training simulator Composite polarized film for use in a weapon training simulator

1975-06-20

1976-05-25

Hayes, Monroe H.

Optics: motion pictures

Methods

Applications

35 25, 352132, G03B 1918

Patent

active

039588718

ABSTRACT:
A method of making and utilizing a composite three layer specially polari motion target film for gunnery practice in which two vectograph films of 90.degree. variance in polarization and a black and white film comprise the composite film and are prepared by image transfer from a normal color movie film of a real world scene including background and target areas made with the target areas painted a color uncommon to the colors in the background. The method includes filtering out background and target areas respectively in image transfer to the respective vectograph films and in utilizing a filter rendering an appropriate gray value to the uncommon color target areas in the image transfer to the black and white film to cause the uncommon color targets to blend in with the background properly in the image obtained from the composite film. The result obtained is a complete motion picture film plus target areas, visible and invisible, of 90.degree. out of phase polarization, which targets are distinguishable by a polarizing filter and light receiver and hit indicator circuit provided on a weapon to be aimed at the target.

REFERENCES:
patent: 3911598 (1975-10-01), Mohon

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