vision by the normal eye, intermediate between photopic vision and scotopic vision Note 1 to entry: In mesopic vision, both the cones and the rods are active. Note 2 to entry: See also CIE 191:2010, Recommended System for Mesopic Photometry based on Visual Performance. Note 3 to entry: This entry was numbered 845-02-11 in IEC 60050-845:1987.
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