Spectral Exitance (real surface)

Description

The spectral exitance of a real surface around a given frequency or wavelength, according to the Lambert’s cosine law and the Planck’s law, is equal to the formula shown here.

Related formulas

Variables

Meλspectral exitance (watt/m3)
πpi
hPlanck constant
cSpeed of light
λwavelength (m)
ee
kBoltzmann constant
Ttemperature of that surface (K)