Projector

Details Projector Projector

2007-01-30

2007-01-30

Fuller, Rodney (Department: 2851)

Optics: image projectors

Color filter

C353S030000

Reexamination Certificate

active

10980330

ABSTRACT:
To provide a projector that hardly causes deterioration of an image resulted from stray light. A neutral density filter, of which posture can be fine-adjusted by a posture regulating mechanism, is placed in a space between a second dichroic mirror and a liquid crystal light valve. Thus, it is possible to remove stray light, corresponding to condensed light resulted from multi-pass through a field lens or the like, to the outside of a light path by merely tilting the neutral density filter adequately. It is thus possible to project an image having homogeneous brightness (illuminance at the white level) across the entire screen, which in turn makes it possible to project an image having no irregularities in color across the entire screen.

REFERENCES:
patent: 2004/0114219 (2004-06-01), Richardson
patent: A 10-311968 (1998-11-01), None

Affiliated with

Also associated with

Rating

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 Projector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Projector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3742188