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Acta Optica Sinica, Volume. 44, Issue 3, 0312004(2024)

Luminous Intensity of Plane Light Source Based on Near-Field Distributed Photometry

Shaojie Hu1, Hongyuan Wang2, Zehao He2, Qiaofen Zhu1, and Liangcai Cao2、*
Author Affiliations
  • 1School of Mathematics and Physics Science and Engineering, Hebei University of Engineering, Handan 056038, Hebei , China
  • 2Department of Precision Instrument, Tsinghua University, Beijing 100084, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (25)
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    Figures & Tables(8)
    Method for near-field distributed photometric measurement

    Fig. 1. Method for near-field distributed photometric measurement

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    Schematic for luminescence characteristic test of light source under near-field condition

    Fig. 2. Schematic for luminescence characteristic test of light source under near-field condition

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    Structure of experimental device

    Fig. 3. Structure of experimental device

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    Flow diagram for control software of near-field test system

    Fig. 4. Flow diagram for control software of near-field test system

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    Luminance images of plane light source at different pitch axis rotation angles. (a) -75°; (b) -50°; (c) -25°; (d) 25°; (e) 50°; (f) 75°

    Fig. 5. Luminance images of plane light source at different pitch axis rotation angles. (a) -75°; (b) -50°; (c) -25°; (d) 25°; (e) 50°; (f) 75°

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    Comparison of measurement results between imaging and aiming point luminance meters. (a) Comparison results of luminance; (b) absolute and relative errors of luminance

    Fig. 6. Comparison of measurement results between imaging and aiming point luminance meters. (a) Comparison results of luminance; (b) absolute and relative errors of luminance

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    Comparison results of luminous intensity between near-field and far-field measurements. (a) Comparison results of luminous intensity; (b) absolute and relative errors of luminous intensity

    Fig. 7. Comparison results of luminous intensity between near-field and far-field measurements. (a) Comparison results of luminous intensity; (b) absolute and relative errors of luminous intensity

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    • Table 1. Comparison test results of luminous intensity between near-field and far-field measurements

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      Table 1. Comparison test results of luminous intensity between near-field and far-field measurements

      Pitch angle θ/（°）Near-field /cdFar-field /cdPitch angle θ /（°）Near-field /cdFar-field /cd
      -8018.3718.510385.38393.57
      -7531.3331.125382.24390.85
      -7045.9445.4810373.94383.67
      -6562.3161.4415358.29370.01
      -6079.0377.9220330.79343.89
      -5593.6992.7125288.06298.10
      -50105.82103.6330233.80234.23
      -45120.37113.8335179.84170.81
      -40148.05136.6040139.41128.70
      -35192.41185.3845116.73109.49
      -30247.34251.8050104.0499.48
      -25299.61313.185592.2188.03
      -20339.00353.746077.2373.09
      -15363.69375.306560.8756.95
      -10377.51386.667044.9141.70
      -5383.58392.247530.6328.28
      0385.38393.578017.7916.64
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    Shaojie Hu, Hongyuan Wang, Zehao He, Qiaofen Zhu, Liangcai Cao. Luminous Intensity of Plane Light Source Based on Near-Field Distributed Photometry[J]. Acta Optica Sinica, 2024, 44(3): 0312004

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    Paper Information

    Category: Instrumentation, Measurement and Metrology

    Received: Sep. 18, 2023

    Accepted: Nov. 27, 2023

    Published Online: Feb. 27, 2024

    The Author Email: Cao Liangcai (clc@tsinghua.edu.cn)

    DOI:10.3788/AOS231565

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology