Optical design of LED marine beacons

Shih-Kang Lin; Yung-Chang Jen; Xuan-Hao Lee; Yeh-Wei Yu; Tsung-Hsun Yang; Ching-Cherng Sun

doi:10.1117/12.2319821

17 September 2018 Optical design of LED marine beacons

Shih-Kang Lin, Yung-Chang Jen, Xuan-Hao Lee, Yeh-Wei Yu, Tsung-Hsun Yang, Ching-Cherng Sun

Proceedings Volume 10745, Current Developments in Lens Design and Optical Engineering XIX; 107450O (2018) https://doi.org/10.1117/12.2319821
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

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.

Citation Download Citation

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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