点光源的发光效率函数。

Luminous-efficiency functions for point sources.

作者信息

Ikeda M, Yaguchi H, Yoshimatsu K, Ohmi M

出版信息

J Opt Soc Am. 1982 Jan;72(1):68-73. doi: 10.1364/josa.72.000068.

DOI:10.1364/josa.72.000068

Abstract

Luminous-efficiency functions for small fields were measured with flicker photometry and heterochromatic brightness-matching methods for the same two subjects. For the larger stimuli (22.9 and 11.5'), the luminous-efficiency functions differed between the two methods. Those obtained by flicker photometry showed a simple narrow shape, whereas those obtained by heterochromatic brightness matching showed increased sensitivity at short and long wavelengths. The difference however, decreased as the stimulus was reduced to 2.3', and the luminous-efficiency functions converged to curves that resemble the CIE V (lambda ) or Judd's modification. It seems unnecessary to introduce a new luminous-efficiency function for point sources, which is fortunate for practical purposes.

摘要

用闪烁光度法和异色亮度匹配法对两名受试者测量了小视场的发光效率函数。对于较大的刺激（22.9和11.5'），两种方法得到的发光效率函数不同。闪烁光度法得到的函数呈简单的窄形状，而异色亮度匹配法得到的函数在短波和长波处灵敏度增加。然而，随着刺激减小到2.3'，这种差异减小，发光效率函数收敛到类似于CIE V（λ）或贾德修正曲线的曲线。似乎没有必要为点光源引入新的发光效率函数，这对于实际应用来说是幸运的。