# 17-24-071

reflectance optical density

reflectance density

Dρ

logarithm to base 10 of the reciprocal of the reflectance, ρ
Dρ = −log10 ρ

Note 1 to entry: The reflectance optical density has unit one.

Note 2 to entry: This entry was numbered 845-04-65 in IEC 60050-845:1987.

Note 3 to entry: This entry was numbered 17-1061 in CIE S 017:2011.

Publication date: 2020-12