Design the free-form lens of the LED plant lamp for uniform illumination

Lai Liping; Wang Wenfa

doi:10.1117/12.3031752

18 July 2024 Design the free-form lens of the LED plant lamp for uniform illumination

Lai Liping, Wang Wenfa

Proceedings Volume 13179, International Conference on Optics and Machine Vision (ICOMV 2024); 1317904 (2024) https://doi.org/10.1117/12.3031752
Event: International Conference on Optics and Machine Vision (ICOMV 2024), 2024, Nanchang, China

Abstract

Aiming at the problems of poor illumination uniformity and low efficiency of existing plant lamps, according to the basic principles of optics and Principle of non-imaging optics, this paper designs a hyperboloid lens module with high uniformity. The hyperboloid radian of the free-form lens is used to divide the light emitted by LED into two parts: refraction and transmission, which increases the coupling degree of light and improves the optical efficiency and uniformity of the light exit surface. In this paper, 3535 440 LEDs of 1W are used as the light source of the plant lamp. In the plant lamp with the size of 170mm×350mm, the LED light source is divided into 11 rows with 40 LEDs in each row. The light tracing simulation of the free-form lens module model of the designed plant lamp is carried out in TracePro software. The results show that when the maximum diameter of the free-form lens is 15.0mm, the height is 9.16mm and the thickness is 3.8mm, the beam angle of the plant lamp is 90, and the receiving surface is 0.5 m away from the light-emitting surface of the plant lamp, the illumination distribution with over 90% uniformity and 90% optical efficiency can be obtained in the illumination area with a diameter of 500mm×500mm.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Lai Liping and Wang Wenfa "Design the free-form lens of the LED plant lamp for uniform illumination", Proc. SPIE 13179, International Conference on Optics and Machine Vision (ICOMV 2024), 1317904 (18 July 2024); https://doi.org/10.1117/12.3031752

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