1975-08-29
1978-01-10
Stern, Ronald J.
G03H 126
Patent
active
040676382
ABSTRACT:
A plurality of multicolored transparencies or pictures having different parallactic views of a scene are aligned with each other and illuminated by red, green, and blue coherent beams. The resulting images are focused on a holographic recording medium through an aperture elongated along the direction of the alignment of the pictures. A hologram is recorded by red, green, and blue coherent reference beams directed at the recording medium. The images are reconstructed with a white reconstructing beam or a reconstructing beam composed of quasi-monochromatic colors and observed through an aperture corresponding to the first aperture and arranged in the same position. The hologram has recorded thereon a focused image hologram of the pictures and a Fresnel hologram of the aperture. The reconstructed image may be expanded by a screen which is directive in one direction, i.e. retroreflective horizontally, and dispersive in another direction, i.e. vertically dispersive.
REFERENCES:
patent: 3515452 (1970-06-01), Pole
patent: 3608993 (1971-09-01), DeBitetto
patent: 3695744 (1972-10-01), Clay
Matsumoto Kazuya
Yano Akio
Canon Kabushiki Kaisha
Stern Ronald J.
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