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Acta Optica Sinica, Volume. 38, Issue 10, 1022003(2018)

Design and Implementation of Navigation System for Assisting Ships in Entering Port Based on Light-Emitting Diodes

Jiabin Zhang*, Wenping Guo*, Min Xia, Kecheng Yang, and Wei Li
Author Affiliations
  • School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
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    Schematic of navigation scheme

    Fig. 1. Schematic of navigation scheme

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    Irradiation sectional view of navigation system

    Fig. 2. Irradiation sectional view of navigation system

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    Illumination space diagram of navigation lamp

    Fig. 3. Illumination space diagram of navigation lamp

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    Light paths of optical system. (a) Horizontal direction; (b) vertical direction

    Fig. 4. Light paths of optical system. (a) Horizontal direction; (b) vertical direction

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    Simulated spot at 2000 m away. (a) Spot shape; (b) illumination curves in horizontal and vertical directions

    Fig. 5. Simulated spot at 2000 m away. (a) Spot shape; (b) illumination curves in horizontal and vertical directions

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    Design scheme of scintillation control circuit

    Fig. 6. Design scheme of scintillation control circuit

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    Optical system prototype

    Fig. 7. Optical system prototype

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    Prototypes of optical system during the water surface verification experiment

    Fig. 8. Prototypes of optical system during the water surface verification experiment

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    Color distribution of irradiated area at distance of 2000 m away

    Fig. 9. Color distribution of irradiated area at distance of 2000 m away

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    • Table 1. Diameter and area of eye pupil at different field luminances

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      Table 1. Diameter and area of eye pupil at different field luminances

      Adaptive fieldluminance /(cd·m-2)Pupildiameter /mmPupilarea /mm2Luminanceon retina /lx
      10-58.1752.22.2×10-6
      10-37.8047.82.0×10-4
      10-27.4443.41.8×10-3
      10-16.7235.41.5×10-2
      15.6625.11
      104.3214.60.6
      1023.047.253.0
      1032.324.2317.6
      2×1042.243.94109.9

    • Table 2. Divergence angle of different colors at distance of 2000 m away

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      Table 2. Divergence angle of different colors at distance of 2000 m away

      ColorRed (length 1=2010 m,length 2=2109 m,length 3=254 m)Green (length 1=1966 m,length 2=2031 m,length 3=143 m)Blue (length 1=2034 m,length 2=2167 m,length 3=273 m)
      Angle6°30'46.4″3°39'10.2″6°30'35.9″
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    Jiabin Zhang, Wenping Guo, Min Xia, Kecheng Yang, Wei Li. Design and Implementation of Navigation System for Assisting Ships in Entering Port Based on Light-Emitting Diodes[J]. Acta Optica Sinica, 2018, 38(10): 1022003

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    Paper Information

    Category: Optical Design and Fabrication

    Received: Mar. 28, 2018

    Accepted: Apr. 30, 2018

    Published Online: May. 9, 2019

    The Author Email:

    DOI:10.3788/AOS201838.1022003

    Topics

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