Patent ID: 9217561
Filing Date: 2015-12-22
Classification: A61C,F21V,F26B,G02B

Abstract:
1. A photocuring system comprising: a housing enclosing a space; a metal platform having a first substantially planar surface and a second surface; the metal platform vertically dividing the enclosed space into a first volume defined by the first substantially planar surface and the housing, and a second volume defined by the second surface and the housing; the metal platform having on the second surface a plurality of vertically oriented fins; a first light source positioned within said first volume, the first light source having a first solid state light source, a collimator, and a first metal base, wherein the first solid state light source emits light of a first wavelength which is received by the collimator which generates a collimated first light beam; a second light source positioned within said first volume, the second light source having a second solid state light source, a collimator, and a second metal base, wherein the second solid state light source emits light of a second wavelength which is received by the collimator which generates a collimated second light beam; a third light source positioned within said first volume, the third light source having a third solid state light source, a collimator, and a third metal base, wherein the third solid state light source emits light of a third wavelength which is received by the collimator which generates a collimated third light beam; a plurality of dichroic elements positioned in said first volume and mounted to said first substantially planar surface of said metal platform wherein the plurality of dichroic elements combine the collimated first light beam, collimated second light beam, and collimated third light beam into a combined light beam; and an output optical stage, positioned in said first volume and mounted to said first substantially planar surface of said metal platform, the optical stage including a lumen for receiving a light guide and comprising a plurality of lenses positioned to receive the combined light beam and focus the combined light beam into an output beam of light suitable for illuminating the light guide; wherein said first metal base is mounted to said first substantially planar surface of said metal platform such that it provides a heat conducting path between said first solid state light source and the metal platform through which heat generated by the first solid state light source is conducted to the metal platform; wherein said second metal base is mounted to said first substantially planar surface of said metal platform such that it provides a heat conducting path between said second solid state light source and the metal platform through which heat generated by the second solid state light source is conducted to the metal platform; wherein said third metal base is mounted to said first substantially planar surface of said metal platform such that it provides a heat conducting path between said third solid state light source and the metal platform through which heat generated by the third solid state light source is conducted to the metal platform; wherein the housing has a top vent into said second volume and a bottom vent into said second volume whereby hot air can escape from the second volume through the top vent and cool air can be drawn into the second volume through the bottom vent to provide air flow through the second volume and between said vertically oriented fins to provide passive convective cooling of the metal platform and wherein the housing substantially seals the first volume to prevent contamination.