CIE x005

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Photometry – The CIE system of physical photometry

Published by	Publication Date	Number of Pages
CIE	2022	58

Category: CIE

Description

Description

CIE x005 – Photometry – The CIE system of physical photometry

The purpose of photometry is to measure light as perceived by the human eye. The brightness of a luminous surface depends not only on the amount of radiation it emits, transmits or reflects, but also on its spectral composition and on the visual response function of the observer viewing it.