Patent ID: 8109657
Filing Date: 2012-02-07
Classification: F21V,Y10S

Abstract:
1. An LED (light emitting diode) lamp comprising: a heat sink comprising a planar base and a plurality of fins extending from a top face of the base, wherein an annular receiving groove is recessed from a bottom face of the base for receiving a gasket in the receiving groove; an LED module attached on the bottom face of the base and surrounded by the receiving groove; an envelope comprising a recessed body and an engaging flange extending outwardly from a periphery of the body, wherein the gasket is sandwiched between the engaging flange and the base defining the receiving groove, and the LED module is received between the recessed body and the base; and a lamp housing defining a cavity therein, wherein the heat sink, the LED module and the envelope are received in the cavity, and the fins of the heat sink extend outwardly through the lamp housing and are exposed in an outer environment; wherein the lamp housing comprises a plurality of lateral plates and a cover plate fixed on the lateral plates.