Reflection mount for transmission holograms

Details Reflection mount for transmission holograms Reflection mount for transmission holograms

1981-04-13

1984-02-07

Arnold, Bruce Y.

40361, G03H 122, G02B 272

Patent

active

044299478

ABSTRACT:
Apparatus for illuminating transmission holograms from the rear with an illumination source located in front of the hologram, comprising a reflector and a light trap adapted to be mounted behind the hologram at a location chosen to reflect light from the source through the hologram as though from a source behind the hologram, while reflecting ambient light from the direction of an observer of the hologram into the trap.

REFERENCES:
patent: 3633989 (1972-01-01), Benton
patent: 3944322 (1976-03-01), Benton

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