Patent ID: 8154037
Filing Date: 2012-04-10
Classification: F21K,F21V,F21Y,H01L

Abstract:
1. A light-emitting diode light source apparatus, comprising: a base including an upper surface, a lower surface opposite the upper surface, and a peripheral edge side surface provided between edges of the upper surface and the lower surface, the base having thermal conductivity; and a substrate including an upper surface provided with at least one pair of electrode patterns, a lower surface opposite the upper surface, and a pass-through hole provided to pass through the upper surface and the lower surface, the lower surface of the substrate attached to the upper surface of the base, the base, the substrate, and the pass-through hole of the substrate each having a concentric circular shape, at least one circular mounting area that is an exposed portion of the upper surface of the base exposed from the pass-through hole of the substrate, and a plurality of light-emitting diode elements mounted on the circular mounting area of the base, the plurality of light-emitting diode elements electrically connected to the electrode patterns provided on the upper surface of the substrate.