Optical display apparatus

Details Optical display apparatus Optical display apparatus

1982-06-21

1986-03-04

Arnold, Bruce Y.

G03H 122

Patent

active

045737592

ABSTRACT:
A relatively simple dual display system, e.g. a map or stand-by graticule superimposed on a radar or main display, is provided by use of holography. A holographic element when illuminated with a reconstruction beam from a light source provides a holographic image of visual information at a postiion behind and spaced from the element itself. The element is mounted an appropriate distance in front of a cathode ray tube such that the holographic image appears at the phosphor surface superimposed on and coincident with the CRT display.

REFERENCES:
patent: 3708217 (1973-01-01), McMahon
patent: 4165930 (1979-08-01), Matsumoto et al.
patent: 4420218 (1983-12-01), Rubanou et al.
Saxby, Graham, Holograms, p. 44, Focal Press Limited, London, 1980.

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