System of mesopic photometry for evaluating lights in terms of comparative brightness relationships
System of mesopic photometry for evaluating lights in terms of comparative brightness relationships
复制标题
用于根据比较亮度关系评估光的中间视觉测光系统
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
K. Takeichi
中科院分区：
文献类型：
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作者：
K. Sagawa;K. Takeichi
描述了根据比较亮度关系评估中间视觉范围内的光的光度系统。该系统基于通过亮度与亮度比 (B/L) 和 CIE 暗视亮度修改的 CIE 明视亮度的加权几何平均值，以提供与中间视觉范围内的光的比较亮度关系相对应的等效亮度。加权系数称为适应系数，被定义为等效亮度的函数，因此需要迭代计算才能获得适当的等效亮度。描述了如何计算等效亮度和系统的实验评估的示例。
A photometric system assessing lights in the mesopic range in terms of comparative brightness relationships is described. The system is based on a weighted geometric mean of the CIE photopic luminance modified by the brightness-to-luminance ratio (B/L) and the CIE scotopic luminance to provide an equivalent luminance that corresponds to comparative brightness relationships of lights in the mesopic range. The weighting coefficient, called the adaptation coefficient, is defined as a function of equivalent luminance, so an iterative calculation is required to obtain an appropriate equivalent luminance. Examples of how to calculate the equivalent luminance and an experimental evaluation of the system are described.