candela per square metre
SI unit of luminance
Note 1 to entry: The unit nit (symbol: nt) is no longer in use.
Note 2 to entry: Other non-SI units of luminance:
metric: lambert (symbol: L), 1 L = cd⋅m−2;
non-metric: footlambert (symbol: fL), 1 fL = 3,426 cd⋅m−2.
Note 3 to entry: This entry was numbered 845-01-53 in IEC 60050-845:1987.
Note 4 to entry: This entry was numbered 17-118 in CIE S 017:2011.