Light pipe and polarized-light source

Details Light pipe and polarized-light source Light pipe and polarized-light source

2006-04-28

2008-11-04

Shafer, Ricky D (Department: 2872)

Optical: systems and elements

Extended spacing structure for optical elements

Extension of tubular element adjustable

C359S599000, C362S019000, C362S558000, C362S620000, C362S623000

Reexamination Certificate

active

07446938

ABSTRACT:
A light pipe is obtained by laminating on one or both surfaces of a light-transmitting resin plate a polarized-light scattering plate having fine birefringent domains dispersed therein and hence showing anisotropy in scattering. The polarized-light scattering plate comprises a transparent film having fine domains dispersed therein comprising a liquid crystal polymer which exhibits nematic at temperatures lower than the glass transition temperature of the polymer constituting matrix of the transparent film and has a glass transition temperature of 50° C. or higher. The light pipe as a laminate may further comprise a specular reflection layer, a polarization-retaining lens and a light diffusion layer laminated thereon. The light pipe may further comprise a light source mounted at least on one side face thereof to provide a planar polarized-light source.

REFERENCES:
patent: 2123902 (1938-07-01), Land
patent: 2158130 (1939-05-01), Land
patent: 3680950 (1972-08-01), Haas et al.
patent: 4688900 (1987-08-01), Doane et al.
patent: 5048932 (1991-09-01), Yamamoto et al.
patent: 5204763 (1993-04-01), Hikmet
patent: 5331446 (1994-07-01), Hirai et al.
patent: 5394255 (1995-02-01), Yokota et al.
patent: 5686979 (1997-11-01), Weber et al.
patent: 5751388 (1998-05-01), Larson
patent: 5783120 (1998-07-01), Ouderkirk et al.
patent: 5808709 (1998-09-01), Davis et al.
patent: 5825444 (1998-10-01), Broer et al.
patent: 5825543 (1998-10-01), Ouderkirk et al.
patent: 5856855 (1999-01-01), Mol et al.
patent: 5899551 (1999-05-01), Neijzen et al.
patent: 5940211 (1999-08-01), Hikmet et al.
patent: 5955837 (1999-09-01), Horikx et al.
patent: 5995183 (1999-11-01), Tsuyoshi
patent: 6104455 (2000-08-01), Kashima
patent: 6111696 (2000-08-01), Allen et al.
patent: 6175399 (2001-01-01), Mitsui et al.
patent: 6236439 (2001-05-01), Saiki et al.
patent: 6239907 (2001-05-01), Allen et al.
patent: 6256146 (2001-07-01), Merill et al.
patent: 6310671 (2001-10-01), Larson
patent: 6359668 (2002-03-01), Iijima et al.
patent: 6361838 (2002-03-01), Miyatake et al.
patent: 6369945 (2002-04-01), Sakuramoto et al.
patent: 6392802 (2002-05-01), Miyatake et al.
patent: 6515785 (2003-02-01), Cobb et al.
patent: 6665028 (2003-12-01), Nakanishi et al.
patent: 6683717 (2004-01-01), Miyatake et al.
patent: 6706339 (2004-03-01), Miyatake et al.
patent: 6734932 (2004-05-01), Nakanishi et al.
patent: 6850295 (2005-02-01), Miyatake et al.
patent: 6905220 (2005-06-01), Wortman et al.
patent: 6947105 (2005-09-01), Miyatake et al.
patent: 6952310 (2005-10-01), Miyatake et al.
patent: 6970216 (2005-11-01), Miyatake et al.
patent: 0 770 818 (1997-05-01), None
patent: 0 864 905 (1998-09-01), None
patent: 0 952 477 (1999-10-01), None
patent: 6-18873 (1994-01-01), None
patent: 6-160840 (1994-06-01), None
patent: 6-265892 (1994-09-01), None
patent: 7-72475 (1995-03-01), None
patent: 7-27092 (1995-10-01), None
patent: 7-261122 (1995-10-01), None
patent: 08-076114 (1996-03-01), None
patent: 9-54556 (1997-02-01), None
patent: 9-105933 (1997-04-01), None
patent: 09-134607 (1997-05-01), None
patent: 9-138406 (1997-05-01), None
patent: 9-152604 (1997-06-01), None
patent: 09-274108 (1997-10-01), None
patent: 9-293406 (1997-11-01), None
patent: 09-297204 (1997-11-01), None
patent: 9-326205 (1997-12-01), None
patent: 10-78581 (1998-03-01), None
patent: 11-281975 (1999-10-01), None
patent: WO 95/17699 (1995-06-01), None
patent: WO 95/27919 (1995-10-01), None
patent: WO 97/32223 (1997-09-01), None
patent: WO 97/32224 (1997-09-01), None
patent: WO 97/32226 (1997-09-01), None
patent: WO 97/32227 (1997-09-01), None
EP Search Report for EP 00 11 0072 completed Jul. 5, 2000.

Affiliated with

Also associated with

Rating

Light pipe and polarized-light source does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light pipe and polarized-light source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light pipe and polarized-light source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4035084