All of the above definitions can be derived from spectral radiance. This
is an important exercise which will help clarify the relationship between
radiance and the other radiometric and photometric terms. In the
following list, spectral radiance will be referred to as the function
.
Spectral Radiometry
Spectral radiant energy
Spectral radiant flux
Spectral radiant flux density (in terms of exitance)
Spectral radiant intensity
Photometry
Luminous flux
Luminous flux density(in terms of exitance)
Luminous intensity
Luminance
Copyright (C) 1995 Kurt Zimmerman
Indiana University kuzimmer@cs.indiana.edu