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METHOD AND SYSTEM FOR FEEDBACK AND CONTROL OF A LUMINAIRE

  • US 20060245174A1
  • Filed: 06/26/2006
  • Published: 11/02/2006
  • Est. Priority Date: 10/12/2004
  • Status: Active Grant
First Claim
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1. A system for feedback and control of a luminaire including one or more light-emitting elements in one or more colours, each of the one or more light-emitting elements supplied with electrical current to produce light of a desired chromaticity and luminous flux under operating conditions, said system comprising:

  • a) a feedback system including one or more light sensors for detecting the light and generating light values, said feedback system includes a means to adjust the light values in order to maintain a desired relative resolution, said feedback system generating current values representative of luminous flux and chromaticity of the light from the light values; and

    b) a control system operatively integrated with the feedback system, said control system determining an adjustment factor through a correlation of the current values and a desired chromaticity and luminous flux, said control system interdependently adjusting the electrical current to one or more light-emitting elements in accordance with said adjustment factor, said control system adjusting the electrical current without perceivable visual flicker or momentary chromaticity shifts.

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