Patent ID: 7878686
Filing Date: 2011-02-01
Classification: F21K,F21V,F21Y,F28F,Y10S

Abstract:
1. A light emitting device, comprising: a light source comprising a light emitting diode (LED) element, a substrate comprising a front surface on which the LED element is mounted and a back surface on which a radiation pattern is attached, and a sealing material for sealing the LED element; a radiator comprising a plurality of plate members comprising a thermally-conductive material; and a wiring substrate for supplying power to the light source, the wiring substrate comprising an opening part through which the light source and the radiator connect, wherein said radiation pattern is disposed within the light emitting device directly below the LED element to attach, and to transfer heat from the light source, to the plurality of plate members, the radiation pattern being electrically isolated from the LED element, wherein the plurality of plate members are laminated on each other at a proximal end and extended outwardly at a distal end to form a space between each other at the distal end, and wherein the light source is mounted on a parallel-laminated area of the plurality of laminated plate members.