1980-06-06
1984-05-01
Arnold, Bruce Y.
350 369, 350320, G03H 126
Patent
active
044457499
ABSTRACT:
A method of making achromatic holographic stereograms in which projected images from a sequence of two-dimensional transparencies of a scene taken from a sequence of successively displaced positions are sequentially holographically recorded on adjacent strips of a photographic plate while the plate is inclined at an acute angle to the optical axis of projection of the images. The sequence of holographic strip images so recorded are re-recorded on a second hologram using a beam conjugate to the original reference beam to illuminate the strip hologram. The second holographic recording is done with the aid of a vertically inclined collimated reference beam of coherent light. Upon illumination of the second hologram with white light, a three-dimensional image of the original scene may be viewed by an appropriately placed observer which is achromatic over an extended angle of view and an extended apparent scene depth.
REFERENCES:
patent: 4067638 (1978-01-01), Yano et al.
Arnold Bruce Y.
Polaroid Corporation
Roman Edward S.
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