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BS ISO/CIE 23539:2023 – TC

$258.26

Tracked Changes. Photometry. The CIE system of physical photometry

Published By Publication Date Number of Pages
BSI 2023 126
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PDF Catalog

PDF Pages PDF Title
1 30484701
73 A-30452049
74 National foreword
79 Foreword
80 Introduction
81 1 Scope
2 Normative references
3 Terms and definitions
82 4 Photometric quantities and units
4.1 Photometric quantities
83 4.2 Photometric units
5 CIE standard spectral luminous efficiency functions
5.1 General
5.2 Photopic vision
84 5.3 Scotopic vision
5.4 Mesopic vision
85 5.5 10° photopic vision
6 Names, symbols and units for photometric quantities
6.1 General
86 6.2 Photopic vision
6.3 Scotopic vision
6.4 Mesopic vision
87 6.5 10° Photopic vision
6.6 Photometric quantities for other observers
7 Basic formulae relating photometric quantities to radiometric quantities
7.1 General
7.2 General formula
88 7.3 General formula for luminous flux
7.4 Maximum luminous efficacy
7.4.1 General
89 7.4.2 Photopic vision
7.4.3 Scotopic vision
7.4.4 Mesopic vision
7.4.5 10° photopic vision
7.4.6 Summary of maximum luminous efficacies
90 7.5 (Photopic) luminous flux
7.6 Scotopic luminous flux
7.7 Mesopic luminous flux
92 7.8 10° photopic luminous flux
8 Physical measurement
8.1 General
93 8.2 Photometers
8.3 Spectroradiometers
8.3.1 Spectral measurement
8.3.2 Spectral calculations
94 9 Tables of values of spectral luminous efficiency functions
9.1 Photopic vision
98 9.2 Scotopic vision
101 9.3 10° photopic vision
105 Annex A (informative) Example of a spectral luminous efficiency function for mesopic vision
109 Annex B (informative) Supplementary information on mesopic vision
110 Annex C (informative) Background of the CIE system of physical photometry
112 Annex D (informative) Guidance on valid description of photometric values
113 Annex E (informative) Cone-fundamental-based spectral luminous efficiency functions
123 Bibliography
BS ISO/CIE 23539:2023 - TC
$258.26