Patent ID: 9719636
Date: 2017-08-01
CPC Classifications: F21V,F21Y

Claim:
1. A light-emitting diode based lighting fixture, comprising: said light fixture being a troffer that at least provides a horizontal light output distribution, said troffer substantially constructed from aluminum material and acts as a heat sink; at least one reflector including a reflective enhancing material to reflect light and a pair of frames are attached on a top surface of at least one housing, said pair of frames attached to said at least one housing along an inner edge of each of said frames so that said pair of frames are spaced apart and angled upwardly with respect to a top surface of said at least one housing with an outer edge of each said frame spaced away from said housing so that a top surface of each of said pair of frames is angled toward the other of said pair of frames and said at least one reflector, a back surface of each said frame in contact only with air for cooling said pair of frames; at least one light emitting diode strip mounted on said top surface of each said frame to emit light, said at least one light emitting diode strip including a plurality of strings of four light emitting diodes, each string of four light emitting diodes electrically connected to each other in series, each said light emitting diode is secured to said light emitting diode strip with a solder joint, said pair of frames each oriented at an angle in a range of 10° to 45° degrees with respect to the top surface of the at least one housing so that light emitted from said light emitting diodes is directed into said reflector to be reflected out of said light fixture; a driver for supplying power to said at least one light emitting diode strip, said driver electrically connected to said at least one light emitting diode strip, said driver supplying 24 volts to each said at least one light emitting diode strip, said driver supplying a maximum of 58 milliamps to each said light emitting diode so that each said solder joint achieves a maximum temperature of 33 degrees Celsius during operation of said string of light emitting diodes; and at least one lens positioned approximate to a bottom surface of the at least one housing for reflective light to emit there through.