LED bulb

Details LED bulb LED bulb

2006-08-15

2006-08-15

Pak, Sung (Department: 2874)

Optical waveguides

Miscellaneous

C362S555000

Reexamination Certificate

active

07092612

ABSTRACT:
An LED light source has a housing with a hollow projecting core. The core is arrayed about a longitudinal axis. A printed circuit board closes an open end of the housing at a core end and has LEDs operatively fixed about the center thereof. A light guide with a wall thickness T is positioned in the core and has a first end in operative relationship with the plurality of LEDs and a second end projecting beyond the hollow core. A first reflector is attached to the second end of the light guide. The housing is thermally conductive to form an extended and integral heat sink and has an extended body-part that preferably is provided with heat-radiating fins. A preferred material for the housing is thermally conductive plastic. The printed circuit board has a thermally conducive base that is in direct contact with the housing via an upstanding V-shaped rim.

REFERENCES:
patent: 2003/0147254 (2003-08-01), Yoneda et al.

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