Acta Photonica Sinica, Volume. 46, Issue 1, 112004(2017)

Measurement Method of LED Etendue Based on Near-field Source Model

GUI Li1,2、*, YIN Shao-yun1, CAI Wen-tao1, SUN Xiu-hui1, DU Chun-lei1, and DING Xue-zhuan2
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  • 1[in Chinese]
  • 2[in Chinese]
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    A method for measuring the étendue of LED was proposed based on the near-field model of the LED source. The curve of luminous power on étendue can be obtained by tracing rays data in LED near-field moled, which can directly reflect the étendue characteristics and the energy efficieny of LED source. Taking the UV-LED array surface source in the exposure system as an example, the actual measurement of the three different models of UV-LED were carried out. The designer can make a judgment on the UV-LED beam quality by the étendue and energy efficiency curve, which can provide help for the optimization design of the UV-LED array surface source.

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    GUI Li, YIN Shao-yun, CAI Wen-tao, SUN Xiu-hui, DU Chun-lei, DING Xue-zhuan. Measurement Method of LED Etendue Based on Near-field Source Model[J]. Acta Photonica Sinica, 2017, 46(1): 112004

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    Paper Information

    Received: Jul. 11, 2016

    Accepted: --

    Published Online: Feb. 9, 2017

    The Author Email: Li GUI (ibrahim_gui@163.com)

    DOI:10.3788/gzxb20174601.0112004

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