Multi-faceted holographic optical element and methods of making

Details Multi-faceted holographic optical element and methods of making Multi-faceted holographic optical element and methods of making

1980-07-31

1984-06-19

Arnold, Bruce Y.

G03H 122

Patent

active

044550618

ABSTRACT:
A holographic optical element is formed by subdividing the surface of a relatively thick dichromated gelatin film into numerous small areas so as to provide a corresponding number of volume facets therebeneath. Each facet is individually exposed with coherent waves, either planar or spherical, so as to record a desired interference pattern within that particular facet. By constructing each facet individually, a volume hologram is created containing an arbitrarily specified complete fringe pattern which will cause a readout beam to be deflected along a desired scan path, or a hologram can be produced which will provide a wavefront transformation when illuminated with an expanded laser beam so as to display a complete image with 100% optical efficiency.

REFERENCES:
patent: 3591252 (1971-07-01), Lu
patent: 3619033 (1971-11-01), McMahon
patent: 3627400 (1971-12-01), Caufield
patent: 3812496 (1974-05-01), Brooks
patent: 4307929 (1981-12-01), Eveleth
patent: 4339168 (1982-07-01), Haines
Levy, U. et al., "Parallel Image Transmission by Unordered Fiber Bundles", Applied Optics, vol. 19, No. 10, May 15, 1980, pp. 1661-1664.

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