[1] Hao Jian, Jing Lei, Ke Hongliang, et al. New method of online testing and data processing for LED lamps [J]. Journal of Southeast University (English Edition), 2016, 32 (4): 415-419. [doi:10.3969/j.issn.1003-7985.2016.04.004]

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New method of online testing and data processing for LED lamps()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

32

Issue:

2016 4

Page:

415-419

Research Field:

Mathematics, Physics, Mechanics

Publishing date:

2016-12-20

Info

Title:

New method of online testing and data processing for LED lamps

Author(s):

Hao Jian¹;  2;  Jing Lei¹;  Ke Hongliang¹;  2;  Wang Yao¹;  2;  Gao Qun¹Wang Xiaoxun¹;  2;  Sun Qiang¹;  Xu Zhijun¹

¹Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
² Daheng College, University of Chinese Academy of Sciences, Beijing 100049, China

Keywords:

online testing;  accelerated test;  Bayesian estimation;  reliability analysis

PACS:

O432.2

DOI:

10.3969/j.issn.1003-7985.2016.04.004

Abstract:

In order to achieve quick and accurate lifetime prediction of LED lighting products under the testing time of 2 000 h, a method of online testing of luminous flux is proposed under the condition of temperature stress. Exponential fitting of lumen maintenance, the Bayesian estimation of failure probability, the Weibull distribution of lifetime and the Arrhenius model of the decay rate are used in combination to acquire the distribution of failure probability over time at the ambient temperatures of 25 ℃. The lifetime test of the same lamps based on the Energy Star standard under the testing time of 6 000 h is also implemented to verify the effectiveness of the method. The errors of lifetimes acquired with the proposed method are 7%, 4%, 3% and 1% at the failure probabilities of 62.3%, 10%, 5% and 1%, respectively.

References:

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Memo

Memo:

Biographies: Hao Jian(1988—), female, graduate; Sun Qiang(corresponding author), male, doctor, professor, sunq@ciomp.ac.cn.
Foundation items: The Cui Can Project of Chinese Academy of Sciences(No.KZCC-EW-102), the National High Technology Research and Development Program of China(863 Program)(No.2015AA03A101, 2013AA03A116).
Citation: Hao Jian, Jing Lei, Ke Hongliang, et al. New method of online testing and data processing for LED lamps[J].Journal of Southeast University(English Edition), 2016, 32(4):415-419.DOI:10.3969/j.issn.1003-7985.2016.04.004.

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