Image projection apparatus and adjusting method used for the...

Details Image projection apparatus and adjusting method used for the... Image projection apparatus and adjusting method used for the...

2005-09-16

2008-12-16

Duong, Thoi V (Department: 2871)

Liquid crystal cells, elements and systems

Liquid crystal system

Projector including liquid crystal cell

C349S117000, C349S113000, C349S106000, C353S031000

Reexamination Certificate

active

07466368

ABSTRACT:
An image projection apparatus includes a first reflection type liquid crystal display device for modulating and reflecting red light, a second reflection type liquid crystal display device for modulating and reflecting green light, a third reflection type liquid crystal display device for modulating and reflecting blue light, the image projection apparatus projecting colored light made of the red, green and blue lights from the first to third reflection type liquid crystal display devices, a first 1/4 wave plate provided on an optical path of the red light, a second 1/4 wave plate provided on an optical path of the green light, and a third 1/4 wave plate provided on an optical path of the blue light, a direction of a fast axis of the third 1/4 wave plate being different from a direction that minimizes leakage light of the blue light.

REFERENCES:
patent: 5327270 (1994-07-01), Miyatake
patent: 6501523 (2002-12-01), Hirota et al.
patent: 2003/0025879 (2003-02-01), Ishii
patent: 7-38050 (1995-04-01), None
patent: 2001-228534 (2001-08-01), None
patent: 2002-62583 (2002-02-01), None
patent: 2002-207213 (2002-07-01), None
patent: 2003-35886 (2003-02-01), None
patent: 2004-12864 (2004-01-01), None

Affiliated with

Also associated with

Rating

Image projection apparatus and adjusting method used for the... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image projection apparatus and adjusting method used for the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image projection apparatus and adjusting method used for the... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4043506