Method for forming multiple images on a photographic film

Details Method for forming multiple images on a photographic film Method for forming multiple images on a photographic film

1983-06-13

1985-02-05

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Combined

430 13, 430394, 430396, G03B 2114

Patent

active

044978928

ABSTRACT:
A method and apparatus for generating a negative or positive image from a single photographic medium. A source of radiant energy is projected onto a sheet of dielectric material heating the material to a polarizing temperature. A pair of electrical conductors are moved in a first direction along the surface of the heated dielectric material polarizing the material in the first direction. A photographic mask is then positioned over the polarized material and the radiant energy and the electrical field is again applied through the mask in a second direction to polarize certain portions of the material in the second direction. Projecting polarized light through the dielectric material and rotating the material during the projection produces a negative or positive image on the screen.

REFERENCES:
patent: 3498705 (1970-03-01), Ooue et al.
patent: 3724938 (1973-04-01), Nepela
patent: 4021106 (1977-05-01), Gaynor
patent: 4025165 (1977-05-01), Sollish et al.
patent: 4291245 (1981-09-01), Nowlin

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