• Acta Optica Sinica
  • Vol. 37, Issue 10, 1001004 (2017)
Yan Cui1, Jinyong Zhao1, Le Guan2、*, Jinkui Chu1, Xiguang Zhang1, and hui Liu3
Author Affiliations
  • 1 Key Laboratory for Precision and Non-Traditional Machining, Ministry of Education, Dalian University of Technology, Dalian, Liaoning 116024, China
  • 2 Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, Liaoning 116024, China
  • 3 College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian, Liaoning 116026, China
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    DOI: 10.3788/AOS201737.1001004 Cite this Article Set citation alerts
    Yan Cui, Jinyong Zhao, Le Guan, Jinkui Chu, Xiguang Zhang, hui Liu. Simulation and Measurement of Skylight Polarization Distributionin in Yellow Sea[J]. Acta Optica Sinica, 2017, 37(10): 1001004 Copy Citation Text show less
    Schematic of horizontal coordinate system
    Fig. 1. Schematic of horizontal coordinate system
    Simulated polarization distribution patterns of sunlight. (a) Polarization azimuth angle; (b) polarization degree
    Fig. 2. Simulated polarization distribution patterns of sunlight. (a) Polarization azimuth angle; (b) polarization degree
    Simulated polarization distribution patterns of moonlight. (a) Polarization azimuth angle; (b) polarization degree
    Fig. 3. Simulated polarization distribution patterns of moonlight. (a) Polarization azimuth angle; (b) polarization degree
    Schematic of image measurement system with full-sky polarization pattern
    Fig. 4. Schematic of image measurement system with full-sky polarization pattern
    Tested polarization distribution patterns of sunlight. (a) Original images; (b) polarization azimuth angle; (c) polarization degree
    Fig. 5. Tested polarization distribution patterns of sunlight. (a) Original images; (b) polarization azimuth angle; (c) polarization degree
    Tested polarization distribution patterns of moonlight. (a) Original images; (b) polarization azimuth angle; (c) polarization degree
    Fig. 6. Tested polarization distribution patterns of moonlight. (a) Original images; (b) polarization azimuth angle; (c) polarization degree
    TimeLatitudeLongitudeAltitude angle /(°)Azimuth angle /(°)
    13:0036°06'N124°57'E65.6659.22
    14:0034°21'N124°50'E54.9974.59
    15:0034°36'N124°43'E41.6686.18
    16:0034°52'N124°43'E30.1894.00
    17:0035°08'N124°28'E18.27101.64
    Table 1. Measuring geographical coordinate and position of sun
    TimeLatitudeLongitudeAltitude angle /(°)Azimuth angle /(°)
    19:0035°39'N124°13'E25.12-42.54
    19:3035°48'N124°12'E28.66-35.64
    20:0035°54'N124°07'E31.63-28.17
    20:3036°01'N124°05'E33.91-20.17
    21:0036°08'N124°01'E35.43-11.72
    21:3036°15'N123°56'E36.11-2.99
    Table 2. Measuring geographical coordinate and position of moon
    ComponentTechnical parameterNominal value
    Fisheye lensMaximum aperture /mm3.75
    Minimum aperture /mm0.47
    Focal length /mm10.5
    Picture angle /(°)180
    Linear polarizerThickness /mm0.75
    Extinction ratio9000∶1
    Transmission /%42
    Wavelength range /nm400-700
    Polarization efficiency /%99
    Table 3. Specifications of fisheye lens and linear polarizer
    Yan Cui, Jinyong Zhao, Le Guan, Jinkui Chu, Xiguang Zhang, hui Liu. Simulation and Measurement of Skylight Polarization Distributionin in Yellow Sea[J]. Acta Optica Sinica, 2017, 37(10): 1001004
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