Illumination system

Details Illumination system Illumination system

2005-03-08

2005-03-08

Nguyen, Judy (Department: 2851)

Optics: image projectors

Composite projected image

Multicolor picture

C353S084000, C353S081000, C353S033000, C348S771000

Reexamination Certificate

active

06863401

ABSTRACT:
The addition of DMD illumination modulator(s)702in series with projection SLM(s)706/709to produce high-performance projection displays with improved optical efficiency, reliability, and lower maintenance requirements. This approach eliminates the vibration, audible noise, and safety problems associated with high speed rotating color filter wheels203commonly used in SLM projectors and controls the light applied to individual areas of the projection SLM(s).

REFERENCES:
patent: 5812303 (1998-09-01), Hewlett et al.
patent: 5844588 (1998-12-01), Anderson
patent: 5863125 (1999-01-01), Doany
patent: 6121984 (2000-09-01), Anderson
patent: 6334685 (2002-01-01), Slobodin
patent: 6406148 (2002-06-01), Marshall et al.
patent: 6568815 (2003-05-01), Yano

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