| 摘要 |
A utility lamp ( 1 ) comprises a curved reflector ( 2 ) having a spherically curved surface. An array of LEDs ( 3 ) is arranged in an electrical circuit on a thin substrate mounted via thermally conductive epoxy on a thermally-conductive base ( 4 ), which in turn forms an integral part of the reflector ( 2 ). The LEDs are mounted for efficient heat transfer by conduction to the reflector ( 2 ). The reflector ( 2 ) thus operates as both a light reflector and as a radiative heat sink. The heat radiating properties of the reflector are enhanced by integral fins ( 7 ) extending in the radial direction around the periphery of the reflector ( 2 ). The reflector ( 2 ) is of integral aluminium construction.
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