Light guide member, planar lighting device using the same,...

Details Light guide member, planar lighting device using the same,... Light guide member, planar lighting device using the same,...

2006-03-29

2009-11-10

Truong, Bao Q (Department: 2875)

Illumination

Edge lighted panel

Light guide

C362S628000, C362S629000, C362S610000, C385S129000

Reexamination Certificate

active

07614775

ABSTRACT:
A transparent light guide member comprising a first light guide unit in the form of a transparent plate having a rectangular light emitting plane and a parallel groove formed on a rear surface located opposite from the rectangular light emitting plane and parallel to one side of the rectangular light emitting plane; and a second light guide unit, which is transparent, having a columnar external shape to be accommodated in the parallel groove and containing light-scattering particles. Let Φ be the scattering cross section of the particles, LGthe length of the light guide unit32in the direction in which light propagates, Npthe particle density, and KCa compensation coefficient, then a value Φ·LG·Np·KCthe light guide member assumes is not smaller than 1.1 and not greater than 8.2, and the compensation coefficient KCis not smaller than 0.005 and not greater than 0.1.

REFERENCES:
patent: 5542017 (1996-07-01), Koike
patent: 6334691 (2002-01-01), Suzuki et al.
patent: 6883950 (2005-04-01), Adachi et al.
patent: 6966685 (2005-11-01), Li et al.
patent: 2001/0017773 (2001-08-01), Suzuki et al.
patent: 2002/0008969 (2002-01-01), Mabuchi et al.
patent: 2002/0024803 (2002-02-01), Adachi et al.
patent: 2003/0202363 (2003-10-01), Adachi et al.
patent: 2004/0047579 (2004-03-01), Iwasaki et al.
patent: 2004/0165370 (2004-08-01), Kano et al.
patent: 2005/0162863 (2005-07-01), Iwasaki
patent: 2007/0165422 (2007-07-01), Iwasaki
patent: 1504772 (2004-06-01), None
patent: 1504806 (2004-06-01), None
patent: 05-4133 (1993-01-01), None
patent: 09-259623 (1997-10-01), None
patent: 09-304623 (1997-11-01), None
patent: 10-133027 (1998-05-01), None
patent: 11-231320 (1999-08-01), None
patent: 2000-268622 (2000-09-01), None
patent: 2001-042327 (2001-02-01), None
patent: 2001-110223 (2001-04-01), None
patent: 2001-210122 (2001-08-01), None
patent: 2001-222906 (2001-08-01), None
patent: 2001-266626 (2001-09-01), None
patent: 2002-022966 (2002-01-01), None
patent: 2002-075036 (2002-03-01), None
patent: 2002-098838 (2002-04-01), None
First Office Action issued Oct. 10, 2008, by the SIPO of the PRC in corresponding CN application No. 200680010892.7, 8 pages in English and Chinese.

Affiliated with

Also associated with

Rating

Light guide member, planar lighting device using the same,... 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 guide member, planar lighting device using the same,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light guide member, planar lighting device using the same,... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4128131