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8 September 2005 The challenges of optically designing roadway lighting
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New concerns regarding the unwanted effects of lighting our nighttime environment (i.e., light pollution), and new efforts to design energy efficient roadway lighting installations, are changing the requirements of roadway lighting. These factors necessitate the need for different luminous intensity distributions with greater optical control than have traditionally been produced by roadway lighting fixtures. New requirements affecting the optical design of roadway lighting are presented. An example of a nonimaging optical design solution that addresses these requirements is given. Conclusions are then made about the challenges that lie ahead in the optical design of roadway lighting fixtures.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John F. Van Derlofske, Michele McColgan, Yutao Zhou, and Jie Chen "The challenges of optically designing roadway lighting", Proc. SPIE 5942, Nonimaging Optics and Efficient Illumination Systems II, 59420A (8 September 2005);


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