Apparatus for projecting light onto a surface having reflector m

Details Apparatus for projecting light onto a surface having reflector m Apparatus for projecting light onto a surface having reflector m

1991-11-25

1993-02-02

James, Andrew J.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 48, 359 69, 359 71, 353 37, G02F 113, G03B 2126

Patent

active

051842386

ABSTRACT:
A display device in the form of a slim screen projector has a beam-splitter and a reflector co-planar and in contact with each other. Incident light from a light source strikes the beam-splitter and reflector and a portion thereof is directed towards a mirror. Light from the mirror then passes through a louvre-screen via the beam-splitter and strikes a viewing surface on which a viewable image is formed.

REFERENCES:
patent: 3941467 (1976-03-01), Kapany et al.
patent: 3947091 (1976-03-01), Treka
patent: 4033672 (1977-07-01), Dalmasso
patent: 4708439 (1987-11-01), Ishii et al.
patent: 4822145 (1989-04-01), Staelin
patent: 4913528 (1990-04-01), Hasegawa
patent: 5048949 (1991-09-01), Sato et al.

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