Title :
Correlation of activation energy between LEDs and luminaires in the lumen depreciation test
Author :
Guangjun Lu ; Yuan, Chen ; Xuejun Fan ; Zhang, G.Q.
Author_Institution :
Beijing Res. Center, Delft Univ. of Technol., Beijing, China
Abstract :
This paper investigated the correlation of activation energy between LED light source and LED luminaire in lumen depreciation test. Two nonlinear fitting methods were used to verify the stability of the different algorithms to extract the activation energy. The results show that the activation energy of LED luminaire is very close to the LED light source. Activation Energy is typically around 0.20eV and ranges from 0.18eV to 0.23eV for LED luminaire, compared to typically 0.17eV and ranging from 0.11eV to 0.26eV of LED light source.
Keywords :
LED lamps; LED light source; LED luminaire; activation energy correlation; lumen depreciation test; nonlinear fitting method; Abstracts; Monitoring; Temperature measurement; Temperature sensors; Thermal loading; Thermal stability; Activation Energy; Arrhenius Equation; LED; Lumen Depreciation Test; Luminaire;
Conference_Titel :
Thermal, mechanical and multi-physics simulation and experiments in microelectronics and microsystems (eurosime), 2014 15th international conference on
Conference_Location :
Ghent
Print_ISBN :
978-1-4799-4791-1
DOI :
10.1109/EuroSimE.2014.6813827
