Photoelectric Parametric Test System of LED Based on Virtual Instrument
YANG Song-tao1,4,5, WANG Jing3, WANG Li-dong2, LIANG Pei1*, DONG Qian-min1
1. College of Opto-Electronic Science and Technology, China Jiliang University, Hangzhou 310018, China 2. Zhejiang Institute of Metrology, Hangzhou 310013, China 3. Hangzhou Juguang Science and Technology Company Ltd., Hangzhou 310052, China 4. State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China 5. CNERC for Optical Instrument, Zhejiang University, Hangzhou 310027, China
Abstract：The standardized measuring principle, requirements and implementations of the above parameters of LEDs were researched and analyzed in the present paper. Then a comprehensive test system involved with optics, machinery and computer was designed to accomplish data acquisition, algorithm design and interface design on virtual instrument using NI data acquisition card USB6210. And convincing results of LEDs’ parameters, including peak wavelength, width of half-peak wavelength, centroid wavelength, chromaticity coordinates, purity, correlated color temperature and the forward voltage/current, were achieved with good consistency based on the measured spectrum. The system owns simple interface, reliable algorithms and stable results. Respective measurements on five kinds of color of LED result in an average error less than 3%, which show an ideal performance of the system.
Key words：Virtual instrument;Light emitting diodes;Optical colorimetric and electrical parameters;Test system
杨松涛1, 4, 5，王 静3，汪黎栋2，梁 培1*，董前民1 . 基于虚拟仪器的LED光电参数测试系统 [J]. 光谱学与光谱分析, 2014, 34(11): 2912-2917.
YANG Song-tao1,4,5, WANG Jing3, WANG Li-dong2, LIANG Pei1*, DONG Qian-min1 . Photoelectric Parametric Test System of LED Based on Virtual Instrument . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(11): 2912-2917.
[1] BAO Chao（鲍 超）. Physics（物理）, 2003, 32(5): 319. [2] Bourget C M. Hort Science, 2008, 43(7): 1944. [3] Sametoglu F. Optics and Lasers in Engineering, 2008, 46(9): 643. [4] Nguyen F, Terao B, Laski J. International Society for Optics and Photonics, 2005: 5941(31)：1. [5] Pimputkar S, Speck J S, DenBaars S P, et al. Nature Photonics, 2009, 3(4): 180. [6] WU Bao-ning，LI Hong-guang，YU Bing，et al（吴宝宁, 李宏光, 俞 兵, 等）. Applied Optics（应用光学）, 2007, 28(4): 513. [7] Zheludev N. Nature Photonics, 2007, 1(4): 189. [8] LIN Wei-guo（林卫国）. The Research and Application of LED Parameter Measurement and It’s Quality Control（LED参数测量及其质量控制的研究与应用）. Wuhan：Wuhan University of Technology Press(武汉: 武汉理工大学出版社)，2012. 1. [9] Xingzhong Q. Color Research & Application, 1987, 12(5): 285. [10] Bellmeyer, Jr Fred W, Saltzman. Max. Principles of Color Technology. 2nd ed. New York: John Wiley and Sons, 1981. 98. [11] McCamy C S. Color Research and Application, 1992, 17(2)：142. [12] CHEN Xi-hui，ZHANG Yin-hong （陈锡辉, 张银鸿）, LABVIEW 8.20 Programming from Entry to the Master （LABVIEW 8.20程序设计从入门到精通）. Beijing：Tsinghua University Press（北京: 清华大学出版社）, 2007. 1.
