Measurement of Spectral Radiant Flux Symbol: Φλ Unit: W∙nm-1Accounting for the total optical emission of a sources, spectral radiant flux is often used to characterise luminous efficiency of…
Measurement of Spectral Radiance Spectral radiance in a given direction, at a given point of a real or imaginary surface is defined by the equation: Symbol: Ll Unit: W∙m-2∙sr-1∙nm-1 Where dΦ(λ)…
Measurement of Spectral Radiant Intensity Symbol: I Unit: W∙sr-1∙nm-1 Spectral radiant Intensity in a given direction is defined by the equation: Where dΦ(λ) is the spectral radiant power…
