1. A measure of the amount of light radiated by a given source, such as a computer display screen.
2. The perceived brightness component of a given color, as opposed to its hue or its saturation. See also hsb. Compare illuminance.
Die Lichtstärke, die von der Flächeneinheit in die Raumwinkeleinheit ausgestrahlt wird: die Einheit dafür ist: 1 cd/cm²; Candela.