Development of hybrid optical coating with multifunction of UV-VIS absorption, NIR transmission, mechanical hardness, and easy cleanability for automotive LiDAR window

Jung-Hwan In; Seon Hoon Kim; Ju Hyeon Choi

doi:10.1117/12.2665010

14 March 2023 Development of hybrid optical coating with multifunction of UV-VIS absorption, NIR transmission, mechanical hardness, and easy cleanability for automotive LiDAR window

Jung-Hwan In, Seon Hoon Kim, Ju Hyeon Choi

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Proceedings Volume 12417, Optical Components and Materials XX; 124171B (2023) https://doi.org/10.1117/12.2665010
Event: SPIE OPTO, 2023, San Francisco, California, United States

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Abstract

LiDAR (Light Detection and Ranging) is thought to be one of the necessary sensors for automatic driving systems and advanced driver assistance systems. Recently, the LiDAR of the automotive vehicle is installed in the grille or near the headlights. These installed positions are very weak for a variety of pollutions. One of the measures to keep the LiDAR window surface clean is the use of anti-fingerprint coating. In this study, the hybrid optical coating for automotive LiDAR window (BK7 glass) which have the multifunction of UV-VIS absorption, NIR transmission, mechanical hardness and easy cleanability was developed. The surface hardness of the whole front coating and performance of anti-fingerprint coating were measured. The several reliability tests were performed. The coated window passed all tests.

Citation Download Citation

Jung-Hwan In, Seon Hoon Kim, and Ju Hyeon Choi "Development of hybrid optical coating with multifunction of UV-VIS absorption, NIR transmission, mechanical hardness, and easy cleanability for automotive LiDAR window", Proc. SPIE 12417, Optical Components and Materials XX, 124171B (14 March 2023); https://doi.org/10.1117/12.2665010

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