Distributed LED-based light source

Electric lamp and discharge devices – With temperature modifier – Radiating type surface

Reexamination Certificate

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Details

C313S046000

Reexamination Certificate

active

08035284

ABSTRACT:
A light source having a substrate with a plurality of component LED light generators mounted thereon is disclosed. The substrate has a first metallic surface characterized by a normal that points in a normal direction. The first metallic surface is in contact with air over the first metallic surface. The component LED light generators are mounted directly on the first metallic surface. Each component LED light generator includes an LED characterized by an operating temperature and emitting light in the normal direction. Each LED generator generates more than 0.5 watts of heat. The component LED light generators are spaced apart on the first metallic surface such that the operating temperature remains less than 75° C. above the air temperature. In one aspect of the invention, the first metallic surface surrounding each component LED light generator radiates an amount of heat equal to the heat generated by that component LED light generator.

REFERENCES:
patent: 7815338 (2010-10-01), Siemiet et al.
patent: 7926975 (2011-04-01), Siemiet et al.
patent: 7938562 (2011-05-01), Ivey et al.
patent: 7946729 (2011-05-01), Ivey et al.
patent: 2007/0263386 (2007-11-01), Hockel et al.
patent: 2010/0066229 (2010-03-01), Hamby et al.

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