Patent ID: 8476813

Claim:
A lamp device comprising: a heat radiator comprising a body, a plate, and a plurality of fins, wherein the body comprises an inner surface and an outer surface and an opening, wherein the plate is coupled to the body, wherein the inner and outer surfaces of the body extend in a first direction and a surface of the plate coupled to the body extends in a second direction different from the first direction, and wherein the plurality of the fins are coupled to the outer surface of the body; a substrate disposed under the plurality of the fins of the heat radiator and coupled to a plurality of light emitting diodes on one side thereof and having a plurality of holes between the plurality of the light emitting diodes respectively; and a fixing surface coupled to the heat radiator and having an opening, wherein at least one pair of adjacent fins among the plurality of the fins are spaced apart from each other at a predetermined interval, wherein the plate has at least one hole located in alignment with the predetermined interval between at least one pair of the adjacent fins, wherein at least two of the holes of the substrate corresponds to at least two of the holes of the plate, and wherein the plate has an opening and is located between the substrate and the plurality of fins, wherein light from the light emitting diodes is emitted to the opening of the fixing surface, wherein the substrate has an opening in alignment with the opening of the plate, and wherein a same axis is aligned with and passes through the openings of the body, the plate, the substrate, and the fixing surface.