Patent ID: 8733970
Filing Date: 2014-05-27
Classification: F21S,F21Y,G02B

Abstract:
1. A lighting apparatus comprising: a case; a circuit board in the case; a light source to electrically connect with the circuit board, the light source to light an environment via the case, the light source including a plurality of light emitting diodes (LED); a light guide member provided on the light source, the light guide member to guide the lights incident on an edge thereof from the light sources; and a light controlling layer provided over the light guide member in the case, the light controlling layer to reflect light from the light source toward an inside of the case and reduce light from being directly radiated to an outside of the case, wherein the light controlling layer includes a plurality of first reflection patterns each associated with a separate light emitting diode (LED), wherein each first reflection pattern includes a plurality of first reflection parts, and a size of each first reflection part for a corresponding first reflection pattern decreases with increasing a distance from the corresponding LED, wherein the light guide member includes a plurality of through holes formed in correspondence to the plurality of the LEDs, and wherein the plurality of LEDs mounted on the circuit board pass through the through holes to allow the lights to be incident on the edge of the light guide member.