Gamma correction for adjustable light source

Details Gamma correction for adjustable light source Gamma correction for adjustable light source

2008-09-05

2010-11-02

Choi, William C (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S292000

Reexamination Certificate

active

07826126

ABSTRACT:
The present invention provides a projection apparatus comprising: a light source, a light source control unit for controlling the output of the light source; at least one spatial light modulator for modulating the illumination light from the light source by multiple pixel elements; and an optical system for projecting, onto a screen, the illumination light deflected by the spatial light modulator, wherein: the light source control unit 1) modulates the output of the illumination light from the light source during a modulation period of the spatial light modulator, and 2) non-linearly controls the gray scale of an image projected onto the screen.

REFERENCES:
patent: 5214420 (1993-05-01), Thompson et al.
patent: 5303055 (1994-04-01), Hendrix et al.
patent: 5668611 (1997-09-01), Ernstoff et al.
patent: 6034660 (2000-03-01), Millward et al.
patent: 6184852 (2001-02-01), Millward et al.
patent: 6717714 (2004-04-01), Kowarz et al.
patent: 6943836 (2005-09-01), Kitagawa
patent: 6956692 (2005-10-01), Duerr et al.
patent: 6977647 (2005-12-01), Park
patent: 7042523 (2006-05-01), Haider et al.
patent: 2004/0100677 (2004-05-01), Huibers et al.
patent: 2005/0157376 (2005-07-01), Huibers et al.
patent: 2006/0175622 (2006-08-01), Richards et al.
patent: 2007/0159679 (2007-07-01), Hagood et al.
patent: 2007/0171507 (2007-07-01), Ishii et al.

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