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

  • US 7,321,202 B2
  • Filed: 04/05/2006
  • Issued: 01/22/2008
  • Est. Priority Date: 07/30/2003
  • Status: Expired due to Fees
First Claim
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1. A method for stably dimming a lamp light output level of a gas discharge lamp to a low lamp light output level without observable flicker, said method comprising:

  • receiving a signal indicative of a request to reduce said lamp light output level to said low lamp light output level;

    comparing a measured value of a lamp parameter with a threshold value of said lamp parameter; and

    in accordance with a result of said comparison,reducing the lamp light output level to an intermediate lamp light output level and subsequently reducing the lamp light output level to the low lamp light output level.

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