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24 July 2018 Gradient Fresnel lens and its array design based on LED lighting
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Proceedings Volume 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018); 108272M (2018) https://doi.org/10.1117/12.2500052
Event: Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 2018, Shanghai, China
Abstract
In order to improve the heat dissipation of LED, Snell's law and principle of energy conservation are adopted. By applying the equal relationship between the light vectors, a mathematical model of the collimation free-form TIR lens is established. In order to reduce the heat dissipation, the TIR transmission surface is studied. Niel surface design. In order to improve the illuminance of the target, a 9×9 array design was performed on the designed Fresnel lens using Sparrow's rule. Optical simulation using lightools. When the light source array is 10m away from the target surface. The uniformity of light on the target surface not only satisfies 0.7, but the heat dissipation effect has also been significantly improved.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tian-tian Hu, Chun-mei Zeng II, and Suo-dong Ma III "Gradient Fresnel lens and its array design based on LED lighting", Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108272M (24 July 2018); https://doi.org/10.1117/12.2500052
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