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首页> 外文期刊>照明学会誌 >明るさの加法性によるHelmholtz-Kohlrauseh効果の検討
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明るさの加法性によるHelmholtz-Kohlrauseh効果の検討

机译：通过添加亮度来检查Helmholtz-Kohlrauseh效果

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摘要

It is well known that the brightness is dependent not only on the luminance but also on the saturation. Namely, the less saturated colored light needs more luminance to maintain a constant brightness, which is known as the Helmholtz-Kohlrausch effect. In addition, the brightness additivity law does not hold, when two wavelengths are mixed. In the present experiment, the Helmholtz-Kohlrausch effect was investigated by the heterochromatic brightness additivity test in which the bichromatic mixtures of λl and λ2 were matched to the brightness of a white reference light of 2° visual angle. The correlation between the brightness reduction and the decrease of the saturation of the mixture was quantitatively analyzed in the context of the CIE 1931 chromaticity diagram.
机译：众所周知，亮度不仅依赖于亮度，而且呈现在饱和度上。即，较饱和的彩色光需要更多的亮度以保持恒定的亮度，这被称为Helmholtz-Kohlrausch效应。此外，当两个波长混合时，亮度增加法不会保持。在本实验中，通过异络亮度添加性试验研究了Helmholtz-Kohlrausch效应，其中λ1和λ2的双色混合物与2°视角的白色参考光的亮度匹配。在CIE 1931色度图的背景下定量分析亮度降低与混合物饱和的降低之间的相关性。

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