H - Electricity
05
B
H05B 33/12 (2006.01)
Patent
CA 2518995
An LED light source (10) has a housing (12) having a base (14). A hollow core (16) projects from the base (14) and is arrayed about a longitudinal axis (18). A printed circuit board (20) is positioned in the base (14) at one end (22) of the hollow core (16) and has a plurality of LEDs (24) operatively fixed thereto about the center thereof. In a preferred embodiment of the invention the hollow core (16) is tubular and the printed circuit board (20) is circular. A light guide (28) with a body (30) that, in a preferred embodiment, is cup-shaped as shown in Figs. 2 and 4a, has a given wall thickness "T". The light guide (28) is positioned in the hollow core (16) and has a first end (32) in operative relation with the plurality of LEDs (24) and a second end (34) projecting beyond the hollow core. The thickness "T" is at least large enough to encompass the emitting area of the LEDs that are employed with it.
Coushaine Charles M.
Tessnow Thomas
Fetherstonhaugh & Co.
Osram Sylvania Inc.
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