Patent ID: 7947991

Claim:
A high efficiency lighting device, comprising: a light emitting diode structure; an eutectic layer; and a distributed-Bragg reflecting layer (DBR) between said light emitting diode structure and said eutectic layer, said distributed-Bragg reflecting layer being attached to said light emitting diode structure by vapor deposition, wherein said distributed-Bragg reflecting layer comprises: a plurality of high refraction layers; a plurality of low refraction layers, wherein said high refraction layers and said low refraction layers are arranged in an alternating manner, so as to form a stacked thin film having an alternate high/low refraction pattern; and a micro-contact layer array in said stacked thin film and including at least one micro-contact layer, wherein said eutectic layer is made of heat dissipation materials and in direct contact with said distributed-Bragg reflecting layer, and wherein said micro-contact layer array extends vertically through the stacked thin film and connects said light emitting diode structure and said eutectic layer.