LED illumination device

Details LED illumination device LED illumination device

2009-05-18

2011-10-04

Shallenberger, Julie (Department: 2885)

Illumination

Housing

With cooling means

C362S294000, C361S697000

Reexamination Certificate

active

08029169

ABSTRACT:
An LED illumination device includes a lamp housing, a heat sink, a cooling fan, and a light source. The heat sink, the cooling fan and the light source are received in the lamp housing. The heat sink includes a base and a plurality of fins extending from the base. The light source is attached to the base of the heat sink. The cooling fan causes ambient air to enter into the lamp housing and flow through the heat sink. A plurality of air-disturbing plates extends from the lamp housing towards the heat sink. The air-disturbing plates disturb the air in the lamp housing and guide the disturbed air into air passageways defined between adjacent fins of the heat sink.

REFERENCES:
patent: 5658067 (1997-08-01), Engle et al.
patent: 2005/0201098 (2005-09-01), DiPenti et al.
patent: 2006/0034085 (2006-02-01), Wang et al.
patent: 2491699 (2002-05-01), None
patent: 1807971 (2006-07-01), None

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