quantity involved in the visual observation of a source of light when viewed directly from the distance where its apparent diameter just becomes inappreciable
Note 1 to entry: The point brilliance is measured by the illuminance produced by the source on a plane, at the observer's eye, normal to the direction of the source.
Note 2 to entry: The point brilliance is expressed in lux (lx = lm·m−2).
Note 3 to entry: This entry was numbered 845-01-59 in IEC 60050-845:1987.
Note 4 to entry: This entry was numbered 17-962 in CIE S 017:2011.