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The e-ILV provides free access to all the terms and definitions contained in the international standard CIE S 017:2020 ILV: International Lighting Vocabulary, 2nd edition.

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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
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