Design of Light Source for Green Leafy Vegetable Preservation Based on Chlorophyll Absorption Spectroscopy
CAO Guanying
XU Jiawei
ZHU Yuanyuan
ZHANG Haibo
LUO Chuanhao
QIAO Yibo
YU Jingjie
Abstract：In the paper,the chlorophyll absorption spectrum was used as the target spectrum to design the vegetable preservation light source for green leafy vegetable preservation.The spectral superposition principle and least squares method were used to fit the target spectrum by the monochromatic LED database,and the fitting evaluation index R2 was introduced to evaluate the fitting effect.The best fitting scheme of the spectrum obtained by decreasing experiments is the combination of 4 monochromatic LEDs and 1 white LED,and the fitting degree with the target spectrum reaches 98%.LightTools simulation software was used to design the light source,and the number and arrangement of LEDs were optimized.The way the concentric circles are staggered.The light source of vegetable preservation with color coordinates of(0.3371,0.2131)was obtained.
Keywords：light source for green leafy vegetable preservationchlorophyll absorption spectraLEDspectral fitting
Publication Date：2025-09-25
Online Publishing Date：2025-10-14(First online date of this platform, not the publication date of the document)
Pages：4( 15-18 )