| 释义 |
luminous exitance
luminous exitance n (Units) the ability of a surface to emit light expressed as the luminous flux per unit area at a specified point on the surface. Symbol: Mv Luminous Exitance
luminous exitance[′lü·mə·nəs ′ek·səd·əns] (optics) luminous emittance Luminous Exitance a photometric quantity. The luminous exitance from a point of a surface is the ratio of the luminous flux emitted from an infinitesimal element of surface containing the given point to the area of the element. The unit of luminous exitance in the International System of Units is the lumen per square meter (lm/m2). Radiant exitance, the analogous radiometric quantity, is measured in watts per square meter. MedicalSeeMvFinancialSeeMVThesaurusSeemV |