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17 September 2018 Optical design of LED marine beacons
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Abstract
Two optical designs for marine beacon based on Direct In-line Package (DIP) LED is proposed and demonstrated. The luminous intensity of the marine beacon using DIP LED can achieve to the IALA recommendation’s requirement of 5 nautical miles. The measurement of color coordinates can also fit the IALA recommendation’s requirement. By the surface-structured TIR lens, we successfully keep the divergence angle to 68 degrees in the horizontal direction and converge to 8 degrees in the vertical direction.
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Shih-Kang Lin, Yung-Chang Jen, Xuan-Hao Lee, Yeh-Wei Yu, Tsung-Hsun Yang, and Ching-Cherng Sun "Optical design of LED marine beacons", Proc. SPIE 10745, Current Developments in Lens Design and Optical Engineering XIX, 107450O (17 September 2018); https://doi.org/10.1117/12.2319821
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