Patent ID: 7521872

Claim:
A lamp assembly ( 50 ), comprising: a reflector ( 52 ) defining a light reflecting area ( 53 ); a heat sink ( 54 ) defining a circuit housing area ( 55 ) operable to receive a LED driver circuit ( 30 ); a LED assembly ( 20 ) disposed within said light reflecting area ( 53 ) and in thermal communication with said heat sink ( 54 ) to dissipate heat away from said LED assembly ( 20 ), said LED assembly ( 20 ) including at least one LED ( 21 ) operable to emit a light in response to a flow of a LED current (I LED ) through said at least one LED ( 21 ), a portion of the light being reflected within the light reflecting area ( 53 ) as reflected light, and at least one optical power sensor ( 22 ) operable to sense the reflected light; and wherein said LED driver circuit ( 30 ) is disposed within said circuit housing area ( 55 ), said LED driver circuit being in electrical communication with said LED assembly ( 20 ) to control the flow of the LED current (I LED ) through said at least one LED ( 21 ) as a function of a sensing of the emission of the light by said at least one optical power sensor ( 22 ).