LED device compensation method

LED device compensation method

  • CN 101,647,319 A
  • Filed: 03/05/2008
  • Published: 02/10/2010
  • Est. Priority Date: 03/15/2007
  • Status: Active Application
First Claim
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1. aging method that is used for controlling with compensation LED equipment, the method comprising the steps ofA) performance change in the light output of the described LED equipment of measurement;

  • B) during very first time section, utilize first backoff algorithm of deriving to control described LED equipment by the performance change of measuring, change with the brightness in time in the light output that realizes described LED equipment;

    C) during second time period, utilize second backoff algorithm that is different from described first backoff algorithm of deriving to control described LED equipment by the performance change of measuring, change with the brightness in time of second in the light output that realizes described LED equipment;

    Wherein second in time the brightness in described second time period changes first in time the brightness be different from described very first time section and changes;

    AndD) wherein this first and second time period altogether less than useful life of described LED equipment.

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