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彩色视觉成像是基于色度学理论的三刺激值法,而光源的色度学特性是彩色成像的关键因素,因此本文以色度学理论为基础,计算并分析了用于彩色视觉检测的LED阵列光源的色度学特性,并通过于标准D65光源进行对比,研究了LED阵列光源的相关色温调节原理、范围,以及白场平衡时的色度坐标、相关色温等.LED阵列光源具有相当宽泛的相关色温调节范围,可调制出的颜色丰富,色彩的表现能力更强,色彩饱和度更高,白场平衡R:G:B=254:237:90时的色度坐标、相关色温甚至比人工D65光源更加接近于白场的标准色度,其颜色复现能力达到视觉允许的较优颜色复现效果.因此LED阵列光源的色度学特性更加适用于彩色视觉检测.
Color vision imaging is based on the tristimulus value theory of colorimetric theory, and the colorimetric characteristics of the light source are the key factors of color imaging. Therefore, based on the theory of colorimetry, this paper calculates and analyzes the LED The colorimetric characteristics of the array light source and the contrast of the standard D65 light source to study the related color temperature adjustment principle and range of the LED array light source and the chromaticity coordinates and the correlated color temperature of the white field balance LED array light source has a rather broad The relevant color temperature adjustment range, the color modulation can be rich, more powerful color performance, higher color saturation, white balance R: G: B = 254: 237: 90 chromaticity coordinates, the correlated color temperature even The artificial D65 light source is closer to the standard chromaticity of the white field, and its color reproduction ability achieves the better color reproduction effect allowed by the vision, so the colorimetric characteristic of the LED array light source is more suitable for the color vision detection.