Patent ID: 8455832

Claim:
A method comprising: powering a plurality of adjustable radiant-energy emitters from a power source; emitting radiant energy from the plurality of adjustable radiant-energy emitters, wherein an amount of radiant energy emitted from each adjustable radiant-energy emitter of the plurality of adjustable radiant-energy emitters is capable of being varied based on power received from the power source; detecting an amount of radiant energy at a plurality of radiant-energy sensors, wherein the amount of radiant energy detected includes radiant energy created directly by at least one of the plurality of adjustable radiant-energy emitters; comparing the amount of radiant energy detected at least two of the plurality of radiant-energy sensors; adjusting at least one of the plurality of adjustable radiant-energy emitters by varying the power received by the at least one adjustable radiant-energy emitter from the power source so that the amount of radiant energy detected at each of the plurality of radiant-energy sensors tends towards becoming approximately equal; and terminating the emitting of radiant energy from each adjustable radiant-energy emitter of the plurality of adjustable radiant-energy emitters when a total amount of radiant energy emitted from the plurality of adjustable radiant-energy emitters exceeds a predetermined threshold value, wherein the threshold value is sufficient to allow the total amount of radiant energy emitted from the plurality of adjustable radiant-energy emitters to sanitize a particular area in which the plurality of adjustable radiant-energy emitters is located.