17-21-027

spectral, <of a quantity> adj

property of a quantity, X, pertaining to electromagnetic radiation that indicates that X is a function of the wavelength, λ

Note 1 to entry: The quantity X can also be expressed as a function of frequency, ν, wavenumber, σ, etc.; the corresponding symbols are X(ν), X(σ), etc. and X_ν, X_σ, etc. See also "spectral distribution".

Note 2 to entry: This entry was numbered 845-01-16 in IEC 60050-845:1987.

Note 3 to entry: This entry was numbered 17-1206 in CIE S 017:2011.