Patent ID: 6969253
Filing Date: 2005-11-29
Classification: A61C,A61N,B23K,Y10S

Abstract:
1. A light for activating a light-activated material comprising: a light module capable of emitting light useful in activating a light-activated material, a primary heat sink in said light module, said primary heat sink having heat conductance qualities, a well in said primary heat sink, said well having a bottom, said well having an angled side wall, said angled side wall being capable of reflecting light, at least one semiconductor chip located in said well of said primary heat sink, said semiconductor chip being capable of emitting light of a wavelength that is useful in activating a light activated material, said semiconductor chip being affixed to said well bottom by use of a thermally conductive adhesive, a dome over said well and covering said chip, said dome serving to prevent contamination of said chip by exposure of said chip to dirt, said dome serving to prevent mechanical damage to said chip, said dome being constructed at least in part of a material that is translucent to light of the wavelength(s) emitted by said chip; a secondary heat sink, said secondary heat sink having a longitudinal axis, said secondary heat sink having the ability to draw heat away from said primary heat sink and dissipate such heat, and said primary heat sink having the ability to draw heat away from said chip; wherein at least some light emitted from said chip that strikes said well wall is reflected by said well wall in a direction where it may be used to activate a light-activated material;