Reflection integral holography

Details Reflection integral holography Reflection integral holography

1992-06-29

1993-06-29

Arnold, Bruce Y.

Optical: systems and elements

Holographic system or element

Having particular recording medium

359 23, 359 30, 359 35, 359900, G03H 104, G03H 126

Patent

active

052239551

ABSTRACT:
Apparatus and method for storing holographic synthesized information for reflection integral Bragg holograms, free of the limitations of dispersing elements (such as unilateral diffusing screens, conventional lenticular screens and Fresnel lenses), multiple reference beams, mirrorized indexing or other similar materials or techniques. These holograms accurately satisfy Bragg's condition, provide an expanded (and essentially normal) vertical viewing range and can be displayed both flat (in which case the image is behind the film plane) or concave towards the viewer (in which case the image is in front of the film plane). Flat and curved holograms can be combined together. The final holographic images are produced directly from motion picture film, without intermediate transfer prints as required by the prior art. All are front illuminated. By curving the developed hologram for viewing a high definition projection image is obtained.

REFERENCES:
patent: 3758649 (1973-09-01), Frattarola
patent: 4206965 (1980-06-01), McGrew
patent: 4364627 (1982-12-01), Haines
patent: 4411489 (1983-10-01), McGrew
patent: 4429946 (1984-02-01), Haines
patent: 4834476 (1989-05-01), Benton
patent: 5046792 (1991-09-01), Zabka

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