Patent ID: 7090370
Filing Date: 2006-08-15
Classification: F21S,F21V,F21W,F21Y,G02B,Y02B,Y10S

Abstract:
1. An exterior luminaire comprising within an outer body ( 12 ) an array of light emitting diodes ( 2 ), apparatus ( 7 ) for collecting and converting radiation into electrical energy so as to provide at least a part of the power required by the light emitting diodes ( 2 ), at least one light reflecting member ( 22 ) for reflecting light emitted by the light emitting diodes ( 2 ) out of the outer body ( 12 ), and a light diffusing member ( 16 ) in the path of the reflected light, the array of light emitting diodes being contained within a temperature controlled chamber to maintain the temperature around the array of light emitting diodes ( 2 ) within a predetermined range, the temperature controlled chamber being provided with regulating means comprising a heat pump for removing heat from the chamber, a heat sink ( 30 ) for dissipating heat and a heat-to-electrical energy conversion device ( 23 ).