LED lamp

Details LED lamp LED lamp

2008-01-11

2009-12-29

Choi, Jacob Y (Department: 2885)

Illumination

Light source and modifier

With ventilating, cooling or heat insulating means

C362S373000

Reexamination Certificate

active

07637636

ABSTRACT:
An LED lamp includes a lamp base (10), a first heat sink (20) mounted on the lamp base, a plurality of second heat sinks (40) attached to a periphery of the first heat sink and a plurality of LED modules (30) respectively attached to the second heat sinks. The lamp base defines a plurality of vents (166) therein. The first heat sink includes a cylinder (22) at a center thereof. The cylinder has a through hole (25) defined therein, which communicates with the vents and cooperates with the vents to form an air passage communicating with ambient air. A thickness of each of the second heat sinks is gradually varied along a height direction of the each of the second heat sinks.

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patent: 2934916 (2007-08-01), None

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