Preferred Label : radiant intensity;
Detailed label : radiant intensity, I;
IUPAC definition : Radiant power, P, at all wavelengths per solid angle, Ω. The radiant power u emitted
/u in a given direction by a source or an element of the source in a small cone containing
the given direction divided by the solid angle of the cone. SI unit is W sr-1.;
Scope note : it is not recommended to abbreviate this term to just intensity because it is confusing.; equivalent to i ¿ ¿ i¿ , where i¿ is the spectral radiant intensity
at wavelength¿.; mathematical definition: i ¿ p . if the radiant power is constant
over the solid angle considered, i p ¿ .;
Origin ID : R05045;
See also
Radiant power, P, at all wavelengths per solid angle, Ω. The radiant power u emitted
/u in a given direction by a source or an element of the source in a small cone containing
the given direction divided by the solid angle of the cone. SI unit is W sr-1.
