WU Bao-ning, LI Hong-guang, YU Bing, CAO Feng, KUANG Zi-li. Measurement of optical parameters for LEDs[J]. Journal of Applied Optics, 2007, 28(4): 513-516.
Citation: WU Bao-ning, LI Hong-guang, YU Bing, CAO Feng, KUANG Zi-li. Measurement of optical parameters for LEDs[J]. Journal of Applied Optics, 2007, 28(4): 513-516.
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Measurement of optical parameters for LEDs

  • 1.

    Optic Metrology Station,Xi′an Institute of Applied Optics,Xi′an 710065,China;

  • 2.

    Xi′an Institute of Communication,Xi′an 710106,China

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  • Corresponding author:

    WU Bao-ning

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    • Abstract
  • Based on the analysis of LED luminous mechanism and packaging features, some of the optical parameters were selected for testing LED, such as luminous flux, luminance, luminous intensity, spatial light intensity distribution, relative spectrum power distribution and colorimetry. The features of these parameters were investigated. The test principles, the corresponding formulas and the measurement methods are proposed for these parameters. The luminous flux measurement system (LFMS), luminance luminescence intensity measurement system (LLIMS), divergence angle spatial light intensity distribution measurement system (DASLIDMS) and relative spectrum power distribution colorimetry measurement system (RSPDCMS) were designed based on LED luminous mechanism and packaging features. The practical application shows that these systems can meet the requirements of the engineering applications.
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