Patent ID: 6634771
Filing Date: 2003-10-21
Classification: F21K,F21V,F21Y,H01L,Y10S

Abstract:
A semiconductor light source comprising:an enclosure, said enclosure being fabricated from a transparent material through which visible light may pass, said enclosure being generally impermeable to gas, a base to which said enclosure is mounted, said base including a fitting of appropriate shape for insertion into a light bulb socket, an interior volume within said enclosure, a secondary heat sink located in said interior volume, said heat sink being capable of drawing heat from a Light emitting semiconductor device mounted on said heat sink, a plurality of primary heat sinks affixed to said secondary heat sink so that said secondary heat sink serves to draw heat away from said primary heat sink, a plurality of light emitting semiconductor devices affixed to said primary heat sinks in a 1:1 correspondence, at least some of said light emitting semiconductor devices being capable of emitting light having a wavelength in the range of about 200 nanometers to about 700 nanometers. a thermoelectric cooler located on said heat sink, said thermoelectric cooler experiencing a decrease in temperature when exposed to a voltage, an air entrance, an air exit, and an interior airflow path through said secondary heat sink, said airflow path permitting air to enter said heat sink through said air entrance, absorb heat from said secondary heat sink, and exit said heat sink through said air exit, air located within said enclosure, a fan within said enclosure for bringing air into said air entrance and forcing air through said airflow path and through said air exit, an electrical connection between at least two of said light emitting semiconductor devices, an AC/DC converter, and an electrical connection between said AC/DC converter and said light emitting semiconductor devices.