Projection type image display apparatus

Details Projection type image display apparatus Projection type image display apparatus

2006-08-15

2006-08-15

Koval, Melissa Jan (Department: 2851)

Optics: image projectors

Polarizer or interference filter

C353S031000, C353S057000, C353S060000, C349S009000

Reexamination Certificate

active

07090351

ABSTRACT:
A compact, light projection type image display apparatus based on reflection image display devices which provide high brightness without contrast deterioration caused by light leakage associated with black image display. The apparatus uses, as polarizers/analyzers for reflection image display devices, reflection polarizing plates which function as polarizing plates by their grating function only in a specific direction. In each light path, the reflection polarizing plate is located just before/after the reflection image display device.

REFERENCES:
patent: 6234634 (2001-05-01), Hansen et al.
patent: 6262851 (2001-07-01), Marshall
patent: 6623125 (2003-09-01), Chen et al.
patent: 6666557 (2003-12-01), Choi
patent: 6776489 (2004-08-01), Suzuki
patent: 6817720 (2004-11-01), Shiraishi et al.
patent: 6893131 (2005-05-01), Imahase et al.
patent: 2004/0066492 (2004-04-01), Nakashima et al.
patent: 1195782 (1998-10-01), None
patent: 1146379 (2001-10-01), None
patent: 2000-165898 (2000-06-01), None
ProFlux “Optically Flat Polarizing Beamsplitters”, Catalog No. PBF02A, May 2002; 2 pgs.

Affiliated with

Also associated with

Rating

Projection type image display apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Projection type image display apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Projection type image display apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3700696