Centrifugal illumination system

Details Centrifugal illumination system Centrifugal illumination system

1996-11-08

1999-02-09

Dowling, William

Optics: image projectors

Unitary plural refracting surfaces

353102, 353 69, 385901, G03B 2114

Patent

active

058684816

ABSTRACT:
An image display system such as an LCD projection display includes an illumination homogenizer and a centrifugal relay lens system. The illumination homogenizer, such as a reflective tunnel homogenizer or integrator, efficiently provides uniform distribution of light over a region matched to the configuration of an LCD, or other type of image source. The centrifugal relay lens system includes, for example, an S-curve aspheric lens surface that functions to increase the illumination distribution toward the edges and corners of the image source relative to the center. The projection system provides illumination with improved uniformity and efficiency while also providing a shortened optical pathway.

REFERENCES:
patent: 5628553 (1997-05-01), Booth et al.
patent: 5634704 (1997-06-01), Shikama et al.
patent: 5645334 (1997-07-01), Tejima et al.
patent: 5662400 (1997-09-01), Shikama et al.

Affiliated with

Also associated with

Rating

Centrifugal illumination system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Centrifugal illumination system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Centrifugal illumination system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1944287