Projection type image display device

Details Projection type image display device Projection type image display device

2008-05-13

2008-05-13

Lester, Evelyn A. (Department: 2873)

Optics: image projectors

Distortion compensation

C353S034000, C353S037000, C353S070000, C353S074000, C348S744000, C348S745000, C348S746000, C348S747000, C348S749000, C348S770000, C382S254000, C382S255000, C382S256000, C382S266000, C382S267000, C382S268000, C382S269000

Reexamination Certificate

active

07370976

ABSTRACT:
The device has flexure correcting means for operating to rotate a first eccentric cam provided at a central part of a first side of a reflecting mirror, thereby moving up and down the central part of the first side to correct the flexure of the reflecting mirror, torsion correcting means for operating to rotate a second eccentric cam or/and a third eccentric cam provided at the ends of a second side opposed to the first side of the reflecting mirror, thereby moving up and down both ends of the second side of the reflecting mirror to correct the torsion of the reflecting mirror, and a rotation operation portion provided at each of extended ends of camshafts provided at the eccentric cams to correct the flexure and torsion of the reflecting mirror.

REFERENCES:
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patent: 6616283 (2003-09-01), Takano et al.
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patent: 6883920 (2005-04-01), Chen
patent: 7072002 (2006-07-01), Liao
patent: 2002/0044263 (2002-04-01), Takeuchi
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patent: 2001-109071 (2001-04-01), None
patent: 2002-77777 (2002-03-01), None

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