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Method for controlling the luminous flux spectrum of a lighting fixture

  • US 20050225757A1
  • Filed: 06/06/2005
  • Published: 10/13/2005
  • Est. Priority Date: 08/01/2002
  • Status: Active Grant
First Claim
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1. A method for controlling the luminous flux spectrum of light produced by a lighting fixture of a kind incorporating a plurality of groups of light-emitting devices, each group emitting light having a distinct luminous flux spectrum subject to substantial initial variability, the method comprising:

  • calibrating each of the plurality of groups of light-emitting devices by measuring the spectral distribution of light emitted by the group in response to a predetermined electrical power input; and

    supplying a prescribed amount of electrical power to the light-emitting devices in each of the plurality of groups of devices, such that the groups of devices cooperate to emit light having a desired composite luminous flux spectrum.

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