Color separation device, imaging optical engine, and...

Optics: image projectors – Polarizer or interference filter

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C353S081000, C353S033000, C359S490020, C359S490020, C359S490020

Reexamination Certificate

active

06905211

ABSTRACT:
A color separation device according to the present invention comprises a first color separation member having a first polarization direction changing element and a second polarization direction changing element, and a first polarization separation element, and a second color separation member having a second polarization separation element. The first color separation member may be configured from a color separation function element and a polarization direction changing element. Linearly polarized light being made incident on the first color separation member at an angle of approximately 45 degrees so as to separate the light into reflected light and transmitted light, both lights having different colors and one of the different colors corresponding to one of three colors, and one of the lights being made incident on the second color separation member so as to separate the one of the lights into further reflected light and further transmitted light, both further reflected light and further transmitted light corresponding to the other two of the three colors, respectively.

REFERENCES:
patent: 4050165 (1977-09-01), Yamauchi et al.
patent: 4112470 (1978-09-01), Yamauchi
patent: 4214257 (1980-07-01), Yamauchi
patent: 4365209 (1982-12-01), Yamauchi
patent: 4935911 (1990-06-01), Ohuchida et al.
patent: 5060212 (1991-10-01), Fujita et al.
patent: 5097462 (1992-03-01), Fujita et al.
patent: 5107477 (1992-04-01), Fujita et al.
patent: 5604606 (1997-02-01), Miyashita et al.
patent: 5646840 (1997-07-01), Yamauchi et al.
patent: 5652896 (1997-07-01), Yamauchi et al.
patent: 5675815 (1997-10-01), Yamauchi et al.
patent: 5701497 (1997-12-01), Yamauchi et al.
patent: 5751384 (1998-05-01), Sharp
patent: 5815221 (1998-09-01), Kojima et al.
patent: 5845143 (1998-12-01), Yamauchi et al.
patent: 5907438 (1999-05-01), Fujita et al.
patent: 6090344 (2000-07-01), Yamauchi et al.
patent: 6176586 (2001-01-01), Hirose et al.
patent: 6177667 (2001-01-01), Fujita et al.
patent: 6181473 (2001-01-01), Fujita et al.
patent: 6183091 (2001-02-01), Johnson et al.
patent: 6273567 (2001-08-01), Conner et al.
patent: 6282458 (2001-08-01), Murayama et al.
patent: 6309071 (2001-10-01), Huang et al.
patent: 6388718 (2002-05-01), Yoo et al.
patent: 6419362 (2002-07-01), Ikeda et al.
patent: 6490087 (2002-12-01), Fulkerson et al.
patent: 6497488 (2002-12-01), Yamauchi et al.
patent: 6530663 (2003-03-01), Lin
patent: 6628346 (2003-09-01), Ebiko
patent: 6698896 (2004-03-01), Suzuki et al.
patent: 6781640 (2004-08-01), Huang
patent: 11-504441 (1999-04-01), None
patent: 2000-284228 (2000-10-01), None
patent: 2001-281614 (2001-10-01), None
patent: WO 96/37806 (1996-11-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Color separation device, imaging optical engine, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color separation device, imaging optical engine, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color separation device, imaging optical engine, and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3478753

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.