Optics: motion pictures – Removable film strip magazine type
Patent
1977-02-03
1978-11-14
Wintercorn, Richard A.
Optics: motion pictures
Removable film strip magazine type
352 62, 353 7, 354125, 355 22, G03B 3500
Patent
active
041258495
ABSTRACT:
A photographic camera for three dimension photography. A housing has an opening to the interior for light rays. Photosensitive material is located in communication with the interior of the housing at a location during exposure time. Optics in the housing project 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. The optics comprise a lenticular screen extending across the path at a a second position farther along the path from the first position and have, on one side, a plurality of elongated lenticular elements which face in the direction from which the light rays are being projected and have an opposite side facing in position for contact with the surface of the located photosensitive material. The optics include an arrangement for blocking the received light rays at the first position and an aperture is movable transversely across the optical path at the first position 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. The aperture is moved 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 sequentially expose the photosensitive material to thereby expose a substantially continuous unreversed image of the screen on the photosensitive material. The locating means for the photosensitive material significantly comprises means actuable to a first position applying a substantially uniform pressure, over at least the portion of the photosensitive material for exposure, against the lenticular screen for maintaining uniform contact therebetween and a second position displaced in a direction away from the lenticular screen. The means for moving comprises means for moving the screen relative to the photosensitive material, initially prior to the exposure time to thereby cause any deformations in the photosensitive material to be smoothed out prior to the exposure time. A stop is provided for engagement by the actuable means to prevent movement of the actuable means in the direction of movement of the screen due to the movement of the screen and means is provided for urging the actuable means against the stop. With this arrangement the actuable means is fixed and does not move with the movement of the screen and accordingly the photosensitive material can be attached thereto, preventing movement of the photosensitive material during the movement of the screen.
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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