Video projector

Details Video projector Video projector

1996-02-28

1997-12-09

Lee, Michael H.

Television

Video display

Projection device

348750, 349 8, 353 34, H04N 574, H04N 931, G02C 100

Patent

active

056965648

ABSTRACT:
A video projector including a light source and a light valve for receiving light emitted from the light source. A first filter is disposed between the light source and the light valve. The first filter removes light having a bandwidth ranging from ultraviolet to a wavelength within the visible spectrum of light and infrared light from the light emitted from the light source. A second filter is disposed between the first filter and the light valve. The second filter removes light having a bandwidth ranging from ultraviolet to a wavelength within the visible spectrum of light.

REFERENCES:
patent: 5260730 (1993-11-01), Williams et al.
patent: 5379080 (1995-01-01), Onozuka
patent: 5459592 (1995-10-01), Shibatani et al.
patent: 5493351 (1996-02-01), Hamagishi et al.

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