LED lamp

Details LED lamp LED lamp

2011-04-12

2011-04-12

Lee, Jong-Suk (James) (Department: 2885)

Illumination

Light source and modifier

With ventilating, cooling or heat insulating means

C362S373000

Reexamination Certificate

active

07922363

ABSTRACT:
An LED lamp includes a base, a heat sink placed on a top surface of the base and a plurality of LED modules mounted on the heat sink. The base has a base plate, an engaging flange extending upwards from an edge of the base plate and a plurality of projecting vanes formed on a bottom of the base plate. The heat sink surrounded by the engaging flange comprises a core, a plurality of branches extending outwards from an outer circumference of the core and a plurality of fins formed on two opposite sides of each branch. Each branch defines an inclined surface on a top thereof and has a height gradually decreased along a direction outwards from the core. Each LED module has a printed circuit board mounted on the inclined surface of a corresponding branch of the heat sink.

REFERENCES:
patent: 6525668 (2003-02-01), Petrick
patent: 7093958 (2006-08-01), Coushaine
patent: 7513653 (2009-04-01), Liu et al.
patent: 7585090 (2009-09-01), Wu
patent: 2005/0174780 (2005-08-01), Park
patent: 2007/0285926 (2007-12-01), Maxik
patent: 2008/0002410 (2008-01-01), Burton et al.
patent: 2009/0073688 (2009-03-01), Patrick
patent: 2009/0073689 (2009-03-01), Patrick

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