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Addendum 1 for ANSI/IES RP-16-17, Nomenclature and Definitions for Illuminating Engineering
Addendum 1 was approved by the IES Standards Committee on March 28, 2018, and by the American National Standards Institute on April 25, 2018.
Changes to Existing Terms and Definitions:
CIE 1988 2o modified spectral luminous efficiency function for photopic vision, VM(λ)
CIE uniform color spaces
high bay lighting
low bay lighting
values of spectral luminous efficiency for photopic vision, V(λ)
values of spectral luminous efficiency for scotopic vision, V’(λ)
Section Name or Number Changed:
Section 13.0 Tables is now Section T Tables.
New Terms and Definitions:
annual sunlight exposure (ASE)
bidirectional scatter distribution function (BSDF)
center-beam candlepower (CBCP)
equivalent veiling luminance
gamut area index (GAI)
halogen infrared (HIR)
lighting zone (interior lighting)
lighting zone (exterior lighting)
organic light emitting diode (OLED)
reflected direct luminaire
spatial daylight autonomy (sDA)
threshold increment (TI)
Addendum 2 for ANSI/IES RP-16-17, Nomenclature and Definitions for Illuminating Engineering:
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