Patent ID: 7922366
Filing Date: 2011-04-12
Classification: F21K,F21V,F21Y

Abstract:
1. A light source comprising: a refraction body having an inner side formed with an annular arc surface having a larger upper side and a tapered surface connecting to a lower end of the annular arc surface and having a larger lower side; a metal cup having an upper edge extending with an annular flange, an inner side of the metal cup shaped as a tapered surface, and a lower end of the metal cup including an opening; a metal reflecting lampshade having an inner side shaped as a cambered tapered surface, a planar bottom, a plurality of threaded holes formed on the planar bottom, and a hole at the center of the planar bottom; a LED lamp body having at least one threaded hole and an upper end formed with a protrusion portion configured to be received within the opening of the metal cup, the LED lamp body coupled to the planar bottom of the metal reflecting lampshade; wherein a lower end of the refraction body is embedded into the annular flange of the metal cup, and light emitted from the LED lamp body is reflected by the metal cup to be vertically incident into the refraction body so that the light is refracted by the refraction body; the refraction body is installed at a focus of the cambered tapered surface of the metal reflecting lampshade so that the light is reflected to have a predetermined reflected shape.