luminous efficacy
2.It is difficult to adjust the relative spectral sensitivity S (λ) of photo-detector to exactly match to the CIE standard photometric observer-The bspestral luminous efficacy V (λ) due to the difference of relativ spectroal rdistributians among the different phosphors, therefore, it is needed to carry out the color-correction in the measurements both for the relative brightness of phosphors and other photometricquantities. In this work,we calculated color-correction coefficient of relative brightness of some phosphors.
