Patent ID: 8801231

Claim:
An optical semiconductor lighting apparatus, comprising: a housing comprising a first end portion and a second end portion, wherein the first and second end portions comprise two separate pieces forming a plurality of outer vents therebetween; a light source module disposed inside the housing, the light source module comprising a plurality of optical semiconductor elements; a reflector forming at least a portion of the second end portion of the housing, wherein: the reflector comprises a first surface configured to reflect light emitted from the light source module and a second surface formed opposite to the first surface; the second surface is exposed to ambient air; and the reflector is coupled to a plurality of end portion supports disposed on the second end portion, each of the end portion supports being separated from one another by the plurality of outer vents, respectively; a fan disposed inside the housing adjacent to the light source module, wherein: the fan is disposed above the plurality of outer vents with respect to air flow from the fan; the fan is configured to rotate in a first direction whereby air is blown through the plurality of outer vents towards the light source module and is ejected over the second surface of the reflector; an inner vent disposed in a base plate along an axis that is at an acute angle with respect to a vertical line, the inner vent being disposed between the light source module and the outer vent.