Color wheel having a plurality of segments and projector...

Details Color wheel having a plurality of segments and projector... Color wheel having a plurality of segments and projector...

2011-07-19

2011-07-19

Epps, Georgia Y (Department: 2878)

Optics: image projectors

Color filter

C353S020000, C359S891000, C348S743000, C348S835000

Reexamination Certificate

active

07980705

ABSTRACT:
A projector includes a light source unit for emitting white light, a color wheel, a display device, a cooling fan, a light source side optical system for guiding light from the light source unit to the display device, a projection side optical system for projecting an image emitted from the display device onto a screen and a projector control unit for controlling the light source and the display device, wherein the color wheel has a plurality of segment areas, and on each segment area, a coating which transmits light of a wavelength band of a complementary color is applied to one side, while a coating which transmits light of a wavelength band of a primary color is applied to part of the other side.

REFERENCES:
patent: 5371543 (1994-12-01), Anderson
patent: 6876505 (2005-04-01), Niwa
patent: 2005/0212980 (2005-09-01), Miyazaki
patent: 2006/0227300 (2006-10-01), Drazic et al.
patent: 1837893 (2006-09-01), None
patent: 1 705 511 (2006-09-01), None
patent: 07-184215 (1995-07-01), None
patent: 2000338426 (2000-12-01), None
patent: 2002-341133 (2002-11-01), None
patent: 2003-307609 (2003-10-01), None
patent: 2004-279900 (2004-10-01), None
patent: 2004-361833 (2004-12-01), None
patent: 2005-274656 (2005-10-01), None
patent: 2006-162658 (2006-06-01), None
patent: 2006-268042 (2006-10-01), None
patent: 2007-052059 (2007-03-01), None
Chinese Office Action dated Sep. 15, 2010 (and English translation thereof) in counterpart Chinese Application No. 200910130617.4.
Japanese Office Action dated Feb. 25, 2010 and English translation thereof issued in counterpart Application No. 2008-081348.

Affiliated with

Also associated with

Rating

Color wheel having a plurality of segments and projector... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color wheel having a plurality of segments and projector..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color wheel having a plurality of segments and projector... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2740069