Paper Title:
Effect of Temperature and Current on Luminous Efficiency of High Power LED
  Abstract

Luminous efficiency of high power white light LED (light emitting diode) at different temperature and driver current is measured with the photometric, chromatic and electric characteristics analyzer. It is shown that the luminous efficiency decreases as the temperature and (or) the driver current increases. The highter the driver current is, the more strongly temperature worsens the efficiency. However, the changing rate of efficiency with current is similar at different temperature. At last, a luminous efficiency model with temperature and current is constructed. This research is very important for the design of energy-saving LED lamps.

  Info
Periodical
Advanced Materials Research (Volumes 347-353)
Chapter
Chapter 1: Development and Utilization of Solar Energy
Edited by
Weiguo Pan, Jianxing Ren and Yongguang Li
Pages
310-313
DOI
10.4028/www.scientific.net/AMR.347-353.310
Citation
F. Rao, Z. C. Ge, J. L. Zhu, "Effect of Temperature and Current on Luminous Efficiency of High Power LED", Advanced Materials Research, Vols. 347-353, pp. 310-313, 2012
Online since
October 2011
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Price
$32.00
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