Illumination apparatus that uses four color component light...

Details Illumination apparatus that uses four color component light... Illumination apparatus that uses four color component light...

2008-04-18

2010-12-21

Le, Que T (Department: 2878)

Optics: image projectors

Composite projected image

Multicolor picture

C353S020000

Reexamination Certificate

active

07854516

ABSTRACT:
An illumination apparatus includes: a first dichroic mirror; a second dichroic mirror which separates the combined light into a red component light R and the green component light G; and a polarization adjuster provided on an optical path of the combined light between the dichroic mirrors. The polarization adjuster adjusts a polarization direction of a yellow component light Ye in the combined light. A second dichroic mirror separates the combined light into the red component light R on which a part of or all of the yellow component light Ye is superimposed and the green component light G on which the rest of the yellow component light Ye is superimposed.

REFERENCES:
patent: 6704065 (2004-03-01), Sharp et al.
patent: 6819365 (2004-11-01), Peng
patent: 2005/0073655 (2005-04-01), Berman
patent: 2006/0197914 (2006-09-01), Robinson
patent: 2002-287247 (2002-10-01), None

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