A New High Sensitivity Differential Colorimeter
A New High Sensitivity Differential Colorimeter
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新型高灵敏度差示色度计
DOI：
10.1364/josa.42.000652
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发表时间：
1952
影响因子：
--
通讯作者：
D. J. Troy
中科院分区：
文献类型：
--
作者：
L. G. Glasser;D. J. Troy
一种适用于研究和工业用途的新型高精度三色滤光色度计已经开发出来。该仪器可以重复测量 C.I.E. （国际照明委员会）大多数颜色的三色刺激值 X、Y 和 Z，以及样品与标准的三色刺激值与四位有效数字的比率。从白色到黑色，密度约为 4 的所有颜色都可以测量出比训练有素的观察者可以目视检测到的色差小得多的色差。经过仔细抛光的黑色玻璃的发光表观反射率经测量为 0.012%。已准备好值函数表和对齐图，允许将仪器测量值快速转换为修改的 Adams 色度值系统中的颜色坐标或相等视觉间距的坐标差。我们设计了计算尺来快速计算总色差 ΔE。
A new high precision, tristimulus, filter colorimeter suitable both for research and for industrial use has been developed. The instrument can reproducibly measure C.I.E. (International Commission on Illumination) tristimulus values X, Y, and Z, and ratios of tristimulus values, sample to standard, to four significant figures for most colors. Color differences considerably smaller than those which a trained observer can visually detect can be measured on all colors from whites to blacks of about density 4. The luminous apparent reflectance of carefully polished black glass has been measured as 0.012 percent. Tables of value functions and alignment charts have been prepared which permit rapid conversion of instrumental measurements into color coordinates or coordinate differences of equal visual spacing in a modified Adams chromatic value system. A slide rule has been devised for the rapid calculation of total color difference, ΔE.