spectral luminous efficiency
noun
a measure of the efficiency of radiation of a given wavelength in producing a visual sensation. It is equal to the ratio of the radiant flux at a standard wavelength to that at the given wavelength when the standard wavelength is chosen so that the maximum value of this ratio is unitySymbol: V ( λ ) ((for photopic vision)), V′ ( λ ) ((for scotopic vision))
Nearby words
spectra, spectra yellow, spectral, spectral class, spectral line, spectral luminous efficiency, spectral series, spectral type, spectrally, spectre, spectrin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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