17-1084

relative spectral distribution (of a radiant, luminous or photon quantity X(λ)) [S(λ)]

ratio of the spectral distribution, Xλ(λ), of the quantity X(λ) to a fixed reference value, R, which can be an average value, a maximum value or an arbitrarily chosen value of this distribution

        

Unit: 1

See also NOTE 2 to "spectral"

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