Apparatus including directidal selective screening means for dis

Details Apparatus including directidal selective screening means for dis Apparatus including directidal selective screening means for dis

1995-02-01

1996-12-10

Epps, Georgia Y.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359630, G02B 2714

Patent

active

055836950

ABSTRACT:
An apparatus for displaying an image of an object comprises a beam splitter and retroreflectors between the object and the beam splitter on opposite sides of the object. Louvre films adjacent the beam splitter having oppositely directed slats allow observers on opposite sides of the apparatus to view the image but not the object.

REFERENCES:
patent: 4168912 (1979-09-01), Kempf
patent: 4200366 (1980-04-01), Freeman
patent: 4506837 (1985-04-01), Kassies
patent: 5084628 (1992-01-01), Burge
patent: 5182452 (1993-02-01), Hodson
patent: 5420718 (1995-05-01), Davies

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