Patent ID: 7722221
Filing Date: 2010-05-25
Classification: F21K,F21V,F21Y

Abstract:
1. A light emitting diode (LED) light source comprising: a frame having a V-shaped groove formed in the upper portion thereof and a heat sink formed to extend from the lower portion thereof, the V-shaped groove having a planar bottom surface on which a circuit pattern is formed; a plurality of LEDs disposed on the bottom surface of the V-shaped groove; a diffuser plate coupled to the upper end of the frame so as to diffuse light emitted from the plurality of LEDs; a pair of plugs coupled to both side ends of the frame and receiving alternating-current (AC) power from outside; and a power converter fixed and coupled to the lower portion of the frame and electrically connected to the plugs and the plurality of LEDs, the power converter converting the AC power applied from the plugs into direct-current (DC) power and supplying the DC power to the LEDs, wherein the V-shaped groove of the frame has inclined two side walls, formed of reflecting surfaces, between which width decreases in a direction to the bottom surface, wherein the frame is formed integrally with or separately from the heat sink, and wherein the heat sink of the frame has a plurality of heat sink pieces formed at even intervals, and the heat sink is not formed on the lower portion of the frame to which the power converter is coupled.