Radiant exitance: Difference between revisions
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Radiant exitance (at a point of a surface) | Radiant exitance (at a point of a surface) | ||
Latest revision as of 09:36, 17 September 2026
Radiant exitance (at a point of a surface)
Quotient of the radiant flux(dFe) leaving an element of the surface containing the point, by the area of that element (dA). by ???
Symbol Me
Unit watt per square metre (W/m2)
Reference: C.I.E. (modified)
Note 1: If the radiant flux Fe may be considered uniformly emitted by a finite plane surface of area A, the radiant exitance of this surface is given by ??
Note 2: Formerly known in English as radiant emittance and in French as emittance energetique.
Note 3: For further definitions see C.I.E.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
