Method for stabilizing the temperature dependency of light emission of an LED
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United States of America Patent
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Jan 5, 2010
Grant Date -
May 15, 2008
app pub date -
Oct 10, 2007
filing date -
May 14, 2004
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Abstract
, and measured in a light detector, using a predetermined parameter X, correlated to the temperature T of the LED in a predetermined ratio, whereby a correction factor K is determined from the parameter X, preferably using a calibration table, especially preferred using an analytic predetermined function, whereby the measured emitted light quantity L is corrected for the temperature contingent fluctuations of the emitted light quantity, whereby the parameter X is determined from at least two output signals of the LED, which are related to each other in a predetermined manner.
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