Projection type image display apparatus

Details Projection type image display apparatus Projection type image display apparatus

2007-01-30

2007-01-30

Lee, Michael H. (Department: 2622)

Television

Video display

Projection device

C348S756000, C349S008000

Reexamination Certificate

active

10379312

ABSTRACT:
A projection type image display apparatus includes a light source to emit light; a polarizing beam splitter to polarize the light received from the light source; a first lens array including a plurality of first lens cells having rectangular shapes to receive the light from the polarizing beam splitter, each first lens cell having a first side and a second side, the first side being longer than the second side, the first lens array having a rectangular shape, the first lens array having a third side and a fourth side, the third side being longer than the fourth side, the first sides of the first lens cells and the third side of the first lens array extending along a first direction; a second lens array including a plurality of second lens cells and being configured to receive the light from the first lens array, the second lens array having a rectangular shape and having a fifth side and a sixth side, the fifth and sixth sides of the second lens array having substantially the same dimensions as the third and fourth sides of the first lens array; a color separator configured to separate the light from the second lens array into a plurality of light rays of different colors; an image display device configured to form an optical image from the plurality of light rays; and a projector configured to project the plurality of light rays emitted from the image display device as a color image.

REFERENCES:
patent: 5528318 (1996-06-01), Janssen
patent: 6332684 (2001-12-01), Shibatani et al.
patent: 6493149 (2002-12-01), Ouchi
patent: 6511184 (2003-01-01), Yamagishi et al.
patent: 6860607 (2005-03-01), Yanagisawa
patent: 1070984 (2001-01-01), None
patent: 2001-350112 (2001-12-01), None
patent: 2001-42282 (2001-05-01), None
Shimizu, Jeffrey A., “Single Panel Reflective LCD Optics,”Phillips Research, 345 Scarborough Road, Briarcliff Manor, NY 10510 USA.

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-3737274