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Proceedings Paper

Gradient Fresnel lens and its array design based on LED lighting
Author(s): Tian-tian Hu; Chun-mei Zeng II; Suo-dong Ma III
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Paper 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.

Paper Details

Date Published: 24 July 2018
PDF: 7 pages
Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108272M (24 July 2018); doi: 10.1117/12.2500052
Show Author Affiliations
Tian-tian Hu, Soochow Univ. (China)
Chun-mei Zeng II, Soochow Univ. (China)
Suo-dong Ma III, Soochow Univ. (China)

Published in SPIE Proceedings Vol. 10827:
Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018)
Yingjie Yu; Chao Zuo; Kemao Qian, Editor(s)

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