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- W2372608966 abstract "Temperature sensitive optical parameters of white light emitting diode(LED) are important for measuring the junction temperature. In this paper, we conducted a comparative experimental study on the measuring accuracy of temperature sensitive optical parameters of LED, which Included: the Peak-Wavelength,the Luminous-Flux, and the Ratio R=B/W in different environment temperature and driving current conditions.The results showed that, 1)Under the condition of a constant ambient temperature of 30℃ and drive current100-700 m A, the Peak-Wavelength method and ratio R=B/W method both had a high accuracy in measuring LED junction temperature, with the comparative error less than 3.9%; while the Luminous-Flux-method is 6.3%; 2)Under the condition of a constant drive current 700 m A, with the ambient temperature changed from25 to 75℃,the optical parameters measured by all these three methods have good linear relationship with the LED junction temperature, the comparative error is less than 3.25%." @default.
- W2372608966 created "2016-06-24" @default.
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- W2372608966 date "2015-01-01" @default.
- W2372608966 modified "2023-09-22" @default.
- W2372608966 title "The Effect of Environment Temperature and Driving Current on the Temperature Sensitive Optical Parameters of White LED" @default.
- W2372608966 hasPublicationYear "2015" @default.
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