Freeform lens design for LED collimating illumination

Optics Express
Jin-Jia ChenChin-Tang Lin

Abstract

We present a simple freeform lens design method for an application to LED collimating illumination. The method is derived from a basic geometric-optics analysis and construction approach. By using this method, a highly collimating lens with LED chip size of 1.0 mm × 1.0 mm and optical simulation efficiency of 86.5% under a view angle of ± 5 deg is constructed. To verify the practical performance of the lens, a prototype of the collimator lens is also made, and an optical efficiency of 90.3% with a beam angle of 4.75 deg is measured.

References

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Citations

Sep 15, 2015·Applied Optics·Haobo ChengHon-Yuen Tam
Nov 22, 2018·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Leonid L DoskolovichNikolay L Kazanskiy
Oct 20, 2017·Applied Optics·Shin-Hong Kuo, Chi-Feng Chen
May 15, 2013·Applied Optics·Leonid L DoskolovichMikhail A Moiseev
Nov 22, 2018·Applied Optics·Caleb Gannon, Rongguang Liang
Oct 17, 2014·Applied Optics·Nguyen Doan Quoc AnhHsiao-Yi Lee
Mar 26, 2014·Optics Express·Yung-Sheng ChenHsiang-Chen Wang
Feb 25, 2014·Optics Letters·Jui-Wen PanYao-Shan Chen
Oct 19, 2017·Optics Express·Ksenya V AndreevaLeonid L Doskolovich
Jul 1, 2014·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Chen Chen, Xiaohui Zhang
Jul 16, 2021·Applied Optics·Yi XuLiancheng Wang

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