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ISO/CIE DIS 23539

Photometry — The CIE system of physical photometry

pending
Organization: ISO
Publication Date: 26 January 2022
Status: pending
Page Count: 58
ICS Code (Optics and optical measurements in general): 17.180.01
scope:

This document specifies the characteristics of the system of physical photometry established by the CIE and accepted as the basis for the measurement of light. It defines the photometric quantities, units and standards that make up the CIE system of physical photometry, and that have been officially accepted by the Comité International des Poids et Mesures (CIPM). This comprises:

- the definition of photometric quantities, symbols and units;

- the definition of CIE spectral luminous efficiency functions for photopic vision, scotopic vision, mesopic vision, and 10° photopic vision;

- the definition of CIE photometric observers that conforms to these functions;

- the definition of maximum luminous efficacy for photopic vision, mesopic vision, scotopic vision and 10° photopic vision.

Document History

ISO/CIE DIS 23539
January 26, 2022
Photometry — The CIE system of physical photometry
This document specifies the characteristics of the system of physical photometry established by the CIE and accepted as the basis for the measurement of light. It defines the photometric quantities,...
August 1, 2005
Photometry - The CIE system of physical photometry
A description is not available for this item.

References

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