Photocopying – Contact printing – Light boxes
Patent
1977-02-03
1978-08-22
Wintercorn, Richard A.
Photocopying
Contact printing
Light boxes
354125, 355 22, G03B 3500
Patent
active
041092619
ABSTRACT:
A photographic camera for taking three dimensional photographs. A housing has an opening to the interior thereof for light rays. Means is provided for immovably locating the photosensitive material in communication with the interior of the housing at a location during the time for exposure. Optical means in the housing projects the light rays, which are received through the opening from a scene to be photographed, along an optical path to the location for the photosensitive material. The path has a first position therealong extending transversely to the direction of the path from a first side to a second side of the path. The optical means comprises a lenticular screen extending across the path at a second position farther along the path from the first position and having, on one side, a plurality of elongated lenticular elements of width P which face in the direction from which the light rays are being projected, and having an opposite side facing in position for contact with the surface of the located photosensitive material. The optical means is characterized in that it changes, by a predetermined distance Y, on the surface of the photosensitive material, the position of light rays which come from a common point on the scene and which extend along the first and second sides of the path. Also included is means for blocking the received light rays at the first position. An aperture is movable transversely across the path at the first position, from the first side to the second side, for exposing the light rays sequentially to the photosensitive material moving across the screen in a direction normal to the elongation of the lenticular elements. Means is also provided for moving the aperture for a predetermined time for exposure while simultaneously and synchronously moving the screen, substantially throughout the predetermined time for exposure, in substantially the same direction as the light rays expose the photosensitive material and over a distance substantially equal to the sum of the distances P + Y to thereby expose a continuous unreversed image of the scene on the photosensitive material.
REFERENCES:
patent: 3503316 (1970-03-01), Takano et al.
patent: 3521947 (1970-07-01), Jones
patent: 3528736 (1970-09-01), Jones
patent: 3590712 (1971-07-01), Ataka
patent: 3596584 (1971-08-01), Jones et al.
patent: 3678833 (1972-07-01), Leach
patent: 3683772 (1972-08-01), Jones
patent: 3685413 (1972-08-01), Matsunaga et al.
patent: 3731606 (1973-05-01), Geoffray
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