Display lamp with optically curved heat shield
AssigneeGeneral Electric Company
InventorThomas M. Golz
Life of this patent
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Abstract
A low voltage display lamp is provided for use in standard threaded lamp sockets. The lamp has a heat shield to reflect infrared radiation (IR) away from the ballast to reduce the ballast's operating temperature. The surface of the heat shield is optically curved to direct the reflected IR back through the front of the lamp such that it exits through the transparent cover rather than being reflected into the lamp housing.
Claims23
A low voltage display lamp comprising a lamp housing, a reflector assembly, a solid state electronic ballast, and a heat shield, said reflector assembly comprising a reflector and a light source, and being disposed within said housing, said ballast being disposed behind said reflector assembly within said housing, said heat shield being disposed between said ballast and said reflector assembly, said heat shield comprising an optically curved surface and being effective to reflect at least a portion of IR radiation emitted from said light source back through said reflector to exit said display lamp.
Dependencies are inferred from the claim text.