Patent ID: 8567994

Claim:
A street lamp using LEDs comprising: a housing; LED disposed in the housing; a heat radiation fin formed on an upper surface of the housing; a lighting direction adjuster disposed on a bottom surface of the heat radiation fin in the housing 1 ; and a lens case attached to an upper surface of the lighting direction adjuster and equipped with a lens moving means for positioning a lens disposed in the lens case, wherein the lighting direction adjuster comprises a spherical rotating body; a receiving body having a groove for receiving the spherical rotating body; and a cover plate disposed on the rotating body, wherein the lens case comprises an upper lens case and a lower lens case, and the upper lens case is inserted into the lower lens case, wherein a flange secured to the lighting direction adjuster is formed at a lower end of the lower lens case so as to be radially protruded to an inside of the lower lens case, wherein a hollow portion is formed at a lower end of the lower lens case so as to be radially protruded in the form of an elliptical shape to an inside of the upper lens case, wherein a recessed groove for receiving an elliptical lens is formed at an edge side of the hollow portion, and a lens fixing plate for fixing an edge portion of the lens is provided at a bottom surface of the hollow portion, and wherein a plurality of heat radiation holes are formed at the lower ends of the upper and lower lens cases so as to smoothly discharge heat generated from the LED.