Free-form lens design of LED extended light source based on improved weighted superposition optimization

Shenzhe Zhang; Shixiang Wang

doi:10.1117/12.3009400

29 December 2023 Free-form lens design of LED extended light source based on improved weighted superposition optimization

Shenzhe Zhang, Shixiang Wang

Author Affiliations +

Proceedings Volume 12976, Eighth Asia Pacific Conference on Optics Manufacture and Third International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2023); 129761J (2023) https://doi.org/10.1117/12.3009400
Event: 8th Asia Pacific Conference on Optics Manufacture & 3rd International Forum of Young Scientists on Advanced Optical Manufacturing, 2023, Shenzhen, China

Abstract

The design method of free-form lens is very liberal , which can simplify the optical components and support structures required in the system and make the overall optical space more compact. So the free-form surface has a wide range of applications in imaging and non-imaging optics. In this paper, a improved optimization method for designing of free-form lens for light-emitting diode (LED) light distribution was proposed. Based on the lens matching curve obtained by weighted superposition, feedback optimization method was used to further improve the optimization possibility of lens. The weight factors of each surface are optimized by particle swarm optimization algorithm to minimize the evaluation function based on illuminance uniformity of the target surface. The illuminance uniformity on the target plane is optimized from 72.8% to 91.7% start form initial structure. The results show that the proposed algorithm has the advantages of high optimization efficiency and good optimization effect.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Shenzhe Zhang and Shixiang Wang "Free-form lens design of LED extended light source based on improved weighted superposition optimization", Proc. SPIE 12976, Eighth Asia Pacific Conference on Optics Manufacture and Third International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2023), 129761J (29 December 2023); https://doi.org/10.1117/12.3009400

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