Design of asymmetric freeform lens for low glared LED street light with total internal reflection

Optics Express
Min-Feng LaiHsiao-Yi Lee

Abstract

The study is focused on the asymmetric secondary freeform lens (ASFL) design for creating a low glared light-emitting diode (LED) street light. The lens is mounted on a chip on board (COB) LED as the new LED street light module to perform a non-axial symmetric light intensity distribution. The experimental results show that the street light can work without inclining lamps and reach Chinese National Standards (CNS) and Illuminating Engineering Society of North America (IESNA) standards at the same time.

References

Jul 27, 2011·Optics Express·Shang WangSheng Liu
May 9, 2012·Optics Express·Jin-Jia ChenChin-Tang Lin
May 15, 2013·Optics Express·Xuan-Hao LeeChing-Cherng Sun
Oct 10, 2013·Optics Express·Christian Seassal, John Koshel
Oct 17, 2014·Applied Optics·Nguyen Doan Quoc AnhHsiao-Yi Lee

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