Patent ID: 9273995
Filing Date: 2016-03-01
CPC Classification: G01J,H01L

Claim Text:
1. A method comprising: providing a group of discrete light emitting diodes; testing each respective one of the light emitting diodes in the group to determine an optical power level produced by that light emitting diode when connected to an electrical power source, wherein the electrical power source delivers a substantially identical amount of electrical current to each respective one of the light emitting diodes during the testing, and wherein all of the optical power levels produced by the light emitting diodes when connected to the electrical power source fall within a first range; and connecting an electrical resistance in parallel with at least some of the light emitting diodes in the group to reduce an amount of optical power produced by those light emitting diodes, wherein, after the electrical resistances are connected, all of the optical power levels produced by the light emitting diodes fall within a second range that is narrower than the first range.