System and method for reducing flicker of compact gas discharge lamps at low lamp light output level

System and method for reducing flicker of compact gas discharge lamps at low lamp light output level

  • CN 1,846,464 A
  • Filed: 06/30/2004
  • Published: 10/11/2006
  • Est. Priority Date: 07/30/2003
  • Status: Active Application
First Claim
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1. a light output level that is used for stably gaseous discharge lamp transfers to low light output level and does not have the method for perceptible flicker, and described method comprises:

  • Receive expression and described light output level is reduced to the signal of the request of described low light output level;

    The measured value of lamp parameter and the threshold values of described lamp parameter are compared;

    If low light output level, then reduced to the light output level less than the threshold values of lamp parameter by the measured value of lamp parameter;

    AndIf the measured value of lamp parameter is more than or equal to the threshold values of lamp parameter, then;

    The light output level is reduced to the intermediate lamp light output level, wherein, described intermediate lampThe light output level is greater than described low light output level;

    AndSubsequently, the measured value in response to the lamp parameter becomes less than the threshold values of lamp parameter, with lampThe light output level is reduced to low light output level.

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