Patent ID: 8292463
Filing Date: 2012-10-23
Classification: F21V,F21Y,G02B

Abstract:
1. An illumination module comprising: one or more arrays of light-emitting elements for generating light in a first direction; one or more heat extraction elements in thermal communication with at least one of the arrays of the light-emitting elements, the heat extraction elements transferring heat substantially in a second direction, wherein the first direction is substantially opposite the second direction, wherein at least one of the one or more heat extraction elements includes a heat pipe or a thermosyphon; an optical reflector system optically positioned below an optical element and coupled to the arrays of the light-emitting elements, said optical reflector system retaining said one or more arrays of light-emitting elements in an interior area and configured to redirect the light generated by the array of the light-emitting elements from said first direction to substantially said second direction; wherein said illumination module outputs light in substantially said second direction, said heat extraction elements including a condenser at a first end and an evaporator at a second end, said condenser near a light output area of said optical element, said evaporator and said condenser forming a thermally conductive path for transport of heat away from said light-emitting elements towards said first end primarily in said second direction to a location substantially adjacent said light output area of said optical element; said illumination module light-emitting elements having a substrate thermally coupled to said evaporator at said second end.