基于现有的LED植物光源在植物培育中光照不均匀的问题,对目前的植物工厂中使用较为广泛的红、蓝LED阵列型光源进行优化设计。通过对比四种不同的LED阵列排布方式,采用9点法进行PPFD值的测量和光谱的测量,进一步观察平面上光量子通量密度的均匀性和光谱分布的均匀性,进而寻求效果较好的LED阵列排布方式。结果表明:红蓝LED芯片交差分布和阵列行列交错分布的排列方式有利于提高光源阵列光谱的均一性。 Based on the problem of uneven illumination in plant breeding of the existing LED plant light sources, the red and blue LED array light sources which are widely used in plant plants are optimized and designed. By comparing the arrangement of four different LED arrays, the 9-point method was used to measure the PPFD value and measure the spectrum to further observe the uniformity of the photon flux density on the plane and the uniformity of the spectral distribution so as to seek better effect LED array arrangement. The results show that the cross arrangement of the red and blue LED chips and the staggered arrangement of the array are beneficial to improve the uniformity of the light source array.