Abstract: Disclosed is a lighting apparatus. The lighting apparatus includes: a first and a second light emitting diode (LED) module including a plurality of LEDs disposed on one side of a substrate respectively; a heat radiating body which radiates heat from the plurality of the LEDs, includes a space for housing the first and the second LED modules, and includes an opening allowing light emitted from the plurality of the LEDs of the first and the second LED modules to be emitted; and, a reflector being disposed on the heat radiating body and reflecting the light emitted from the plurality of the LEDs of the first and the second LED modules to the opening.

Abstract: Disclosed is a lighting apparatus. The lighting apparatus includes: a first light emitting diode (LED) module including a plurality of LEDs disposed on one side of a first substrate; a second LED module including the plurality of the LEDs disposed on one side of a second substrate, wherein the one side of the second substrate is disposed apart from the one side of the first substrate; and a reflector being disposed between the first LED module and the second LED module and reflecting in a light emission direction light emitted from the plurality of the LEDs. When the light emitted from the plurality of the LEDs is reflected by a reflective surface of the reflector, and is projected to a plane, images of outermost light sources are distributed on the plane to substantially have a circular shape.

Abstract: Disclosed is a lens including a light emitting surface. The light emitting surface of the lens according to the embodiment of the present invention has a coordinate obtained by subtracting a Bezier coordinate corresponding to an aspheric coordinate from the aspheric coordinate.