LED light source device

Details LED light source device LED light source device

2011-03-08

2011-03-08

Ton, Anabel M (Department: 2875)

Illumination

Plural light sources

With modifier

C362S800000, C362S334000, C362S335000, C362S340000, C362S338000

Reexamination Certificate

active

07901108

ABSTRACT:
An LED light source device using light from luminescent elements at a high level of uniformity and efficiency, and to conduct irradiation with a high level of design freedom an LED light source device is equipped with luminescent elements and a translucent light-guiding member. The translucent light-guiding member has a central convex lens with a first cylindrical light-guiding part formed on the outer periphery of the central convex lens and a second cylindrical light-guiding part formed on the outer periphery of the first cylindrical light-guiding part, such that an air layer is formed between the outer peripheral surface of the first cylindrical light-guiding part and the inner peripheral surface of the second cylindrical light-guiding part, the outer peripheral surface of the first cylindrical light-guiding part and the outer peripheral surface of the second cylindrical light-guiding part being rotated quadratic surfaces with the same focal point.

REFERENCES:
patent: 4698730 (1987-10-01), Sakai et al.
patent: 5173810 (1992-12-01), Yamakawa
patent: 5230560 (1993-07-01), Lyons
patent: 6607286 (2003-08-01), West et al.
patent: 6755556 (2004-06-01), Gasquet et al.
patent: 7111964 (2006-09-01), Suehiro et al.
patent: 7461960 (2008-12-01), Opolka et al.
patent: 7470046 (2008-12-01), Kao et al.
patent: 7658515 (2010-02-01), Park et al.
patent: 7744246 (2010-06-01), Rizkin et al.
patent: 2005/0168887 (2005-08-01), Yuasa et al.
patent: 2005/0201118 (2005-09-01), Godo
patent: 61-198692 (1986-09-01), None
patent: 63-33879 (1988-02-01), None
patent: 8-107235 (1996-04-01), None
patent: 11-146142 (1999-05-01), None
patent: 2002-333656 (2002-11-01), None
patent: 2005-209472 (2005-08-01), None
European Search Report for Application No. EP 09 00 4737 dated Aug. 6, 2009.

Affiliated with

Also associated with

Rating

LED light source device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2661246