17-29-040

mean spherical luminous intensity, <of a light source>

Iv,s; Is

average value of the luminous intensity of the light source in all directions, equal to the quotient of its luminous flux and the solid angle 4π sr

Note 1 to entry: The mean spherical luminous intensity is expressed in candela (cd).

Note 2 to entry: This entry was numbered 845-09-27 in IEC 60050-845:1987.

Note 3 to entry: This entry was numbered 17-758 in CIE S 017:2011.

Publication date: 2020-12