CIE 018:2019

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The Basis of Physical Photometry

Published By	Publication Date	Number of Pages
CIE	2019-05-20	49

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Description

CIE 018:2019 presents the basic conventions and principles of physical photometry, with the definitions of the photometric units as reformulated in the International System of Units (SI) 2019 and the photometric quantities and spectral luminous efficiency functions for photopic, mesopic and scotopic vision, including 10° photopic vision. The relationships between the photometric quantities and the radiometric quantities based on the constant Kcd are described, as well as the relationships between photochemical and photobiological quantities and photometric quantities. The conventions of colorimetry are presented, with the definitions of the colour-matching functions for the 2° and 10° field of view, tristimulus values, and chromaticity coordinates.

Additional information

Published Code	CIE
Published By	International Commission on Illumination
Publication Date	2019-05-20
Pages Count	49
Language	English
Descriptors	Photometry, Objective photometry, Units. Constants
Edition	3
File Size	1.8 MB
ISBN	9783902842244

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CIE 018:2019

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