Optical design of LED street lamp based on freeform surface lens

Ye Wang; Fang Li

doi:10.1117/12.2505485

12 December 2018 Optical design of LED street lamp based on freeform surface lens

Ye Wang, Fang Li

Proceedings Volume 10847, Optical Precision Manufacturing, Testing, and Applications; 108470Q (2018) https://doi.org/10.1117/12.2505485
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China

Abstract

For LED light sources, attaching an optical system for light distribution is of great significance. The uneven illumination intensity at observe plane generated by the LED can’t reach the required degree everywhere. In order to achieve that, can only increase the overall power, which is a waste of resources. This paper designed an optical system to achieve rectangular uniform illumination. The relationship between the coordinates of freeform surface and the coordinate points of the target surface was established, and the differential equations that the free surface should satisfy were deduced, and got its numerical solution. Freeform lens is modeled and ray-traced. After analyzing the simulation results, the optical system basically achieves uniform rectangular lighting effects.

Citation Download Citation

Ye Wang and Fang Li "Optical design of LED street lamp based on freeform surface lens", Proc. SPIE 10847, Optical Precision Manufacturing, Testing, and Applications, 108470Q (12 December 2018); https://doi.org/10.1117/12.2505485

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