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Apparatus for Controlling Light Emitting Devices

  • US 20090189540A1
  • Filed: 03/06/2008
  • Published: 07/30/2009
  • Est. Priority Date: 01/24/2008
  • Status: Active Grant
First Claim
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1. Apparatus for controlling light emitting devices, comprising:

  • at least two light emitting devices with different spectrums;

    at least two power measuring devices for respectively measuring input power of the at least two light emitting devices; and

    at least two feedback controllers for receiving at least two power signals of the at least two power measuring devices, and respectively generating a control signal according to the at least two power signals.

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