Photocopying – Projection printing and copying cameras – Stereoscopic
Patent
1982-09-10
1985-12-10
Adams, Russell E.
Photocopying
Projection printing and copying cameras
Stereoscopic
355 77, G03B 2732, G03B 3514
Patent
active
045575908
ABSTRACT:
A method and apparatus for exposing a photographic film with a true three-dimensional image when the image emanates from a photographic film having a pseudo three-dimensional image. A lenticular member having lenticulations on one surface is adapted to be mounted adjacent to a frame containing a film having a pseudoscopic or pseudo three-dimensional image thereon. The frame for the first film is spaced between the flat rear face of the lenticular member and a grating mask having a plurality of uniformly spaced slits therethrough which pass light. A second frame for a second photographic film is mounted on the opposite side of the grating mask. The frames have drive motors coupled thereto and control means causes the drive motors to operate simultaneously to move the frames at the same speed in opposite directions as light enters the lenticular screen and passes through the first film and the grating mask and onto the emulsion of the second film. A Fresnel lens is placed between a light source and the lenticulated surface of the lenticular member to render the light rays from the source generally parallel as they travel toward and enter the lenticular member.
REFERENCES:
patent: 3528736 (1970-09-01), Jones
Adams Russell E.
Brown Brian W.
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