luminous efficacy of radiation, for a specified photometric condition
= luminous efficacy of radiation, for a specified photometric condition
{c}
{title2=2020}
Publisher: International Commission on Illumination.
Online text: https://www.cie.co.at/eilvterm/17-21-090
Cited passages: Definition, Notes 1–2 and 5: ratio of luminous to radiant flux, photometric condition and units; Luminous efficacy of radiation, Note 3: defining frequency, standard-air wavelength and distinction from the peak.