The basic tasks and main contents of the spectralphotometry are described in this paper, and the international academic activities in this metrological field are introduced.
本文介绍了光谱光度学的基本任务与内容，概述了这一计量分支的国际学术活动情况。
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In addition, the structure of the eye as the physiological basis of photometry is analyzed, and the adaptability and the spectral luminous efficiency of the eye are also expatiated.