Virtual image display system with reduced ambient reflection and

Details Virtual image display system with reduced ambient reflection and Virtual image display system with reduced ambient reflection and

1994-08-19

1996-12-17

Sikes, William L.

Liquid crystal cells, elements and systems

Liquid crystal system

Projector including liquid crystal cell

359631, 349 74, G02F 11335, G02B 2714

Patent

active

055859461

ABSTRACT:
A virtual image display system with reduced ambient reflection. The virtual image display system includes a black and white image source for projecting a black and white image. The black and white image is then projected to a magnifying virtual image optical arrangement including a concave reflecting mirror. The magnifying virtual image optical arrangement and a color shutter including a linear polarizer receive the black and white image to generate a magnified color virtual image. The virtual color image display system further includes a .lambda./4-plate for cooperating with the color shutter including the linear polarizer to reduce an ambient reflection from the concave reflecting mirror.

REFERENCES:
patent: 3443858 (1969-05-01), Russa
patent: 4653875 (1987-03-01), Hines
patent: 5050966 (1991-09-01), Berman
patent: 5066108 (1991-11-01), McDonald
patent: 5383053 (1995-01-01), Hegg et al.
patent: 5387920 (1995-02-01), Bos et al.
patent: 5408346 (1995-05-01), Trissel et al.

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