Illumination – Plural light sources – With modifier
Reexamination Certificate
2005-04-22
2008-10-07
Tso, Laura (Department: 2875)
Illumination
Plural light sources
With modifier
C362S247000, C362S249070, C362S310000, C362S800000
Reexamination Certificate
active
07431477
ABSTRACT:
An LED light engine comprising a high thermal conductivity substrate (e.g., a metal-clad PCB), a plurality of light-emitting-diode (LED) semiconductor devices mechanically connected to the substrate, an outer dike fixed to the substrate and surrounding at least a portion of the LED devices, and a substantially transparent polymeric encapsulant (e.g., optical-grade silicone) disposed on the plurality of LED devices and restrained by said outer dike. In one embodiment, the light engine includes a reflector (e.g., a generally conic reflector) fixed to the substrate to form the outer dike. In another embodiment, an optical component (e.g., a lens, filter, or the like) is optically coupled to the polymeric encapsulant disposed on the LED devices.
REFERENCES:
patent: 4211955 (1980-07-01), Ray
patent: 4630183 (1986-12-01), Fujita
patent: 4727289 (1988-02-01), Uchida
patent: 5463280 (1995-10-01), Johnson
patent: 5575459 (1996-11-01), Anderson
patent: 5655830 (1997-08-01), Ruskouski
patent: 5688042 (1997-11-01), Madadi et al.
patent: 5726535 (1998-03-01), Yan
patent: 6149283 (2000-11-01), Conway et al.
patent: 6220722 (2001-04-01), Begemann
patent: 6234649 (2001-05-01), Katougi
patent: 6499860 (2002-12-01), Begemann
patent: 6719446 (2004-04-01), Cao
patent: 6942360 (2005-09-01), Chou et al.
patent: 2002/0070643 (2002-06-01), Yeh
patent: 2003/0018929 (2003-01-01), Bardsley et al.
patent: 2003/0048632 (2003-03-01), Archer
patent: 2004/0066652 (2004-04-01), Hong
patent: 2004/0105264 (2004-06-01), Spero
patent: P2003-0053853 (2003-07-01), None
New York Times Article dated Apr. 8, 2004, by Ian Austen, Entitled: “L.E.D.'s Make for Warm Light But the Bulb Keeps Its Cool,” p. E3.
Chou Der Jeou
Kulaga Thomas
Nelson Daniel
Atkins Robert D.
Enertron, Inc.
Quarles & Brady LLP
Tso Laura
LandOfFree
Methods and apparatus for an LED light engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for an LED light engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for an LED light engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3993270