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
- Acta Optica Sinica
- Vol. 38, Issue 10, 1022003 (2018)
Fig. 1. Schematic of navigation scheme
Fig. 2. Irradiation sectional view of navigation system
Fig. 3. Illumination space diagram of navigation lamp
Fig. 4. Light paths of optical system. (a) Horizontal direction; (b) vertical direction
Fig. 5. Simulated spot at 2000 m away. (a) Spot shape; (b) illumination curves in horizontal and vertical directions
Fig. 6. Design scheme of scintillation control circuit
Fig. 7. Optical system prototype
Fig. 8. Prototypes of optical system during the water surface verification experiment
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 2. Divergence angle of different colors at distance of 2000 m away
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