Luminous intensity

In photometry, luminous intensity is a measure of the wavelength-weighted power emitted by a light source in a particular direction per solid angle unit, based on the luminosity function, a standardized model of the sensitivity of the human eye. The SI unit of luminous intensity is the candela (cd), an SI base unit.

Category:Astronomy
Category:Light
Category:Optics
Category:Physical quantity
Category:Physics
Category:Physiology