The term 'Unit of Luminance' is a measure of the amount of light emitted from a given area. The unit of luminance is also known as the stilb, which is an acronym for 'stilbembers, ' a unit of luminance equal to one candela per square meter. The stilb is used to measure the intensity of light in a variety of applications, such as in photography, television, and film. It is also used to measure the brightness of stars and other celestial objects.