LED bulb

Details LED bulb LED bulb

2006-06-13

2006-06-13

Alavi, Ali (Department: 2875)

Illumination

Light source and modifier

With ventilating, cooling or heat insulating means

C362S547000, C362S373000

Reexamination Certificate

active

07059748

ABSTRACT:
An LED light source (10) has a housing (12) with a base (14). A central heat conductor (18) is centrally located within the hollow core (16) and is formed of a suitable heat-conducting material, such as copper. A cap (36) is fitted over a second printed circuit board (24), and a heat sink (38) is attached to the base (14) and in thermal contact with a first printed circuit board (20). The heat sink (38) has a bottom (40) with an upstanding side wall (42) terminating in a plurality of fingers (44), the fingers (44) being formed to overlie an upper surface (46) of the base (14). The heat sink (38) is preferably formed from black-anodized aluminum.

REFERENCES:
patent: 5857767 (1999-01-01), Hochstein
patent: 6773138 (2004-08-01), Coushaine
patent: 6955451 (2005-10-01), Coushaine et al.
patent: 2004/0201993 (2004-10-01), Coushaine et al.
patent: 2005/0024870 (2005-02-01), Coushaine
patent: 2005/0067942 (2005-03-01), Coushaine

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