Patent ID: 7092612

Claim:
In an LED light source having a housing; a hollow core projecting from said housing, said hollow core being arrayed about a longitudinal axis; a printed circuit board closing said housing at one end of said hollow core and having a plurality of LEDs operatively fixed thereto about the center thereof; a light guide with a body having a given wall thickness positioned in said hollow core and having a first end in operative relationship with said plurality of LEDs and a second end projecting beyond said hollow core; and a first reflector attached to said second end of said light guide: the improvement comprising: said housing being thermally conductive to form an extended and integral heat sink, having externally exposed heat dissipating features, and an internal wall defining a cavity with an open end and said printed circuit board having a periphery in contact with said internal wall for thermal conduction from said circuit board to said heat sink, and closing said defined cavity; said circuit board further exposed on an exterior side spanning the open end of said heat sink.