Projector

Details Projector Projector

1995-10-13

1998-11-10

Dowling, William

Optics: image projectors

Polarizer or interference filter

353 33, 349 9, G03B 2114

Patent

active

058333380

ABSTRACT:
A projector including a non-polarized light source, a polarizing beam-splitter receiving light from the non-polarized light source and a selectably actuable polarization rotating light valve having light polarized in one sense from the polarizing beam-splitter impinging thereon from a first direction and having light polarized in an opposite sense from the polarizing beam-splitter impinging thereon from a second direction.

REFERENCES:
patent: 4345258 (1982-08-01), Tsai et al.
patent: 4911547 (1990-03-01), Ledebuhr
patent: 5121983 (1992-06-01), Lee
patent: 5172254 (1992-12-01), Atasashi et al.
patent: 5181054 (1993-01-01), Nicolas et al.
patent: 5235444 (1993-08-01), de Vaan
patent: 5272496 (1993-12-01), Nicolas et al.
patent: 5299036 (1994-03-01), Nicolas et al.
patent: 5389982 (1995-02-01), Lee
patent: 5515202 (1996-05-01), Wright
patent: 5626408 (1997-05-01), Heynderickx et al.
Rho, B.G., et al., A new LCD projector system with higher brightness, ASIA DiSPLAY '95, pp. 83-85.
Spindler & Hoyer, Beamsplitter Cubes (brochure).
Melles Griot, Broadband polarizing cube beamsplitters (brochure).
Glan Taylor, Polarizing Components--crystal polarizers (brochure).

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