Beam combiner for LCD projector utilizing a penta-prism

Details Beam combiner for LCD projector utilizing a penta-prism Beam combiner for LCD projector utilizing a penta-prism

1995-01-17

1997-04-08

Lee, Michael H.

Television

Video display

Projection device

348751, 359634, 349 7, H04N 574, H04N 931

Patent

active

056192843

ABSTRACT:
A beam combiner for an LCD projection television system makes use of a penta-prism which focuses three separate light sources on a viewing screen. The use of a penta-prism as a beam combiner allows for a compact light path, simplicity of manufacturing and a cost effective dichroic mirror arrangement as part of the penta prism. The light path within the penta-prism from the three light sources forms a right-angled triangle which provides the above-identified advantages.

REFERENCES:
patent: 4687301 (1987-08-01), Ledebuhr
patent: 4882617 (1989-11-01), Vriens
patent: 5012274 (1991-04-01), Dolgoff
patent: 5084807 (1992-01-01), McKechnie et al.
Journal of the International Society of Optical Engineering, Sep. 1994, vol. 33, No. 9.

Affiliated with

Also associated with

Rating

Beam combiner for LCD projector utilizing a penta-prism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Beam combiner for LCD projector utilizing a penta-prism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beam combiner for LCD projector utilizing a penta-prism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2400520