Review of optical design for vehicle forward lighting based on white LEDs

Ching Cherng Sun, Chi Shou Wu, Yong Sheng Lin, Yi Jou Lin, Cheng Yan Hsieh, Shih Kang Lin, Tsung Hsun Yang, Yeh Wei Yu

研究成果: 雜誌貢獻回顧評介論文同行評審

5 引文 斯高帕斯(Scopus)

摘要

We introduce a current development in optical design for vehicle forward lighting based on solid-state lighting, in particular, phosphor-converted white LEDs. The vehicles include bicycles, bikes, and automobiles. Although the requirements regulating different vehicles are different, the low beam always requires a high-contrast cutoff line. Three optical design approaches are discussed; these include a projection lens incorporated with a baffle or beam shaper, multisegment reflectors, and complex lenses. A new design approach called light field management technology for the multisegment reflector is introduced. In addition, the possible related manufacturing errors and the robustness of different optical approaches are analyzed. Finally, we introduce three approaches to adaptive forward lighting that provide a driver with brighter and clearer vision without inducing glare to people on the roadway. The application of video projection technology to roadway illumination could be a trend of vehicle forward lighting based on solid-state lighting.

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文章編號091501
期刊Optical Engineering
60
發行號9
DOIs
出版狀態已出版 - 1 9月 2021

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