Illumination uniformity of an LD and LED hybrid lighting system applied to plant growth
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Published:2022-12-12
Issue:36
Volume:61
Page:10717
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ISSN:1559-128X
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Container-title:Applied Optics
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language:en
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Short-container-title:Appl. Opt.
Author:
Xu Ke,Zeng Lina,Li Zaijin,Chen Hao,Qiao Zhongliang,Qu Yi,Liu Guojun,Li Lin
Abstract
To develop a current plant lighting source with both a suitable
illumination area and high illumination uniformity, we propose a
lighting system for plant growth based on the combination of laser
diode and LED lighting modes. We added a triangular-prism-shaped base
plate element to the previous array type optical structure to increase
the light coupling degree and expand the illumination area. The
Taguchi method was used in our design and experiment, and the
influence of different factors on the illumination uniformity was
studied and compared to the lighting effect of a traditional array
floor structure. Finally, a plant lighting source with an illumination
uniformity of 88.54% and color-mixing uniformity of 84.75% was
obtained. Compared to the commonly adopted array structure, this plant
lighting source expands the illumination area by 31.03%, which
verifies the effectiveness of the scheme.
Funder
Finance Science and Technology Project of
Hainan Province
National Natural Science Foundation of
China
Major Science and Technology Project of
Hainan Province
Specific Research Fund of The Innovation
Platform for Academicians of Hainan Province
Publisher
Optica Publishing Group
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering