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Lambertian surface
ideal surface for which the radiation coming from that surface is distributed angularly according to Lambert's cosine law
Note 1 to entry: For a Lambertian surface,
Note 2 to entry: This entry was numbered 845-04-57 in IEC 60050-845:1987.
Note 3 to entry: This entry was numbered 17-633 in CIE S 017:2011.