Review and analysis of optics for road lighting

Galina Romanova; Xuanlin Qiao

doi:10.1117/12.2525329

21 June 2019 Review and analysis of optics for road lighting

Galina Romanova, Xuanlin Qiao

Proceedings Volume 11062, Digital Optical Technologies 2019; 110621U (2019) https://doi.org/10.1117/12.2525329
Event: SPIE Digital Optical Technologies, 2019, Munich, Germany

Abstract

In lighting design, freefrom optical element plays a key role due to its considerable degree of freedom. In spite of many methods to design freefrom optical system, the prototype of the system is still important, for describing freefom optics with mathematical equations or optimizing in optical design software. In this paper, we analyze several illumination systems in order to verify that different forms of lens could achieve similar light distribution curves (LDCs). In section 3, an approach to realize IESNA Type I lighting with the help of optimization in Zemax is proposed based on calculating reference LDC. The result shows that the efficiency of the system is 84.27% and the optimized LDC is very near to the desired one.

Citation Download Citation

Galina Romanova and Xuanlin Qiao "Review and analysis of optics for road lighting", Proc. SPIE 11062, Digital Optical Technologies 2019, 110621U (21 June 2019); https://doi.org/10.1117/12.2525329

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KEYWORDS

Light sources and illumination

Light emitting diodes

Freeform optics

Light sources

Roads

Optimization (mathematics)

Prototyping

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