Modified X-cube arrangement for improved contrast projection dis

Details Modified X-cube arrangement for improved contrast projection dis Modified X-cube arrangement for improved contrast projection dis

1998-10-06

2000-02-01

Dowling, William C.

Optics: image projectors

Composite projected image

Multicolor picture

353 81, 359834, G02B 2710, G03B 2114

Patent

active

06019474&

ABSTRACT:
An optical projection display system, such as a liquid crystal display device, is disclosed. A feature of the present invention is that the projection display system utilizes a modified X-cube (or X-prism) arrangement wherein the internal angles of the prisms forming the modified X-cube deviate from 90.degree.. The utilization of the present modified X-cube arrangement improves contrast for checkerboard images, minimizes the possibility of spurious unwanted reflections from entering the projection lens as well as substantially eliminating glare and ghost images typically present using prior art X-cubes.

REFERENCES:
patent: 1843007 (1932-01-01), Troland
patent: 3303278 (1967-02-01), Beno et al.
patent: 5042912 (1991-08-01), Sato et al.
patent: 5098183 (1992-03-01), Sonehara
patent: 5237435 (1993-08-01), Kurematsu
patent: 5321499 (1994-06-01), Yu et al.
patent: 5738426 (1998-04-01), Daijogo et al.
patent: 5743610 (1998-04-01), Yajima et al.
patent: 5749641 (1998-05-01), Brice et al.
patent: 5826959 (1998-10-01), Atsuchi

Affiliated with

Also associated with

Rating

Modified X-cube arrangement for improved contrast projection dis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modified X-cube arrangement for improved contrast projection dis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modified X-cube arrangement for improved contrast projection dis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-932278