luminous intensity


noun Optics.

the luminous flux in lumens emitted per unit solid angle by a light source, measured in candles.

British Dictionary definitions for luminous intensity

luminous intensity

noun

a measure of the amount of light that a point source radiates in a given direction. It is expressed by the luminous flux leaving the source in that direction per unit of solid angle Symbol: I v

Scientific definitions for luminous intensity

luminous intensity

The luminous flux per unit solid angle (per steradian), as measured in a given direction relative to a light source. Its unit is the candela. See also luminance.