Patent ID: 8434918

Claim:
A lighting apparatus comprising: a lighting unit comprising a plurality of light sources, each light source comprising: a light emitting diode (LED) package; and a lens element comprising a lens body having a groove for receiving the LED package, and a quadrangular plane formed on the lens body, the quadrangular plane outputting light emitted from the LED package, wherein: the lens body has a smaller width than that of the quadrangular plane, and the groove has a tunnel shape curved toward the quadrangular plane; and a power unit electrically connected with the lighting unit, the power unit supplying power for driving the lighting unit, wherein: the plurality of light sources are arranged in a plurality of light unit lines, which are parallel to each other; the lens body includes a plurality of curved paths in a bottom portion thereof, the plurality of curved paths being positioned at locations corresponding to the plurality of light sources, respectively; each of the plurality of light sources has a rotary shaft having one end of the rotary shaft connected to a bottom central portion of the lighting unit and the other end located in the curved path to move along the curved path to rotate the light source; and each of the light unit lines has a different beam angle by moving the rotary shafts.