Patent ID: 7963689

Claim:
A LED lighting fixture comprising: a cavity; a light guide board mounted inside said cavity, said light guide board having a base portion made of a light transmissive material and including a front surface, a back surface, a first side surface and a second side surface, the first side surface is a light input surface, and the front surface is a light output surface abutted against the light input surface at an angle, the light guide board further having a reflective layer disposed over the back surface of the base portion and including a section portion protruding into the base portion and an inner side bonded to the whole surface area of said base portion beyond said light input surface and said light output surface, the inner side of the reflective layer comprising a flat base portion disposed on the back surface and abutted to one side of said light input surface, a curved tail portion abutted against the second side surface adjacent to one side of said light output surface opposite to said light input surface, a sloping portion connected between said flat base portion and said tail portion, and a great arched portion connected between said flat base portion and said sloping portion, the sloping portion and the great arched portion of the reflective layer are located within the light guide board between the back surface, the light output surface, the light input surface, and the second side surface; and a plurality of light emitting diodes mounted within said cavity and along an exterior surface of said light input surface of said light guide board, light from the plurality of light emitting diodes is injected into the inside of the light guide board through the light input surface, reflected by the reflecting layer and ejected from the LED Fixture through the light output surface of the light guide board.