Scotopic Vision: Difference between revisions
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Vision by the normal eye when adapted to levels of luminance below some hundredths of a candela per square metre. | Vision by the normal eye when adapted to levels of luminance below some hundredths of a candela per square metre. | ||
Latest revision as of 09:48, 17 September 2026
Vision by the normal eye when adapted to levels of luminance below some hundredths of a candela per square metre.
Note: The rod receptors in the retina are considered to be the principal active elements under these conditions. The spectrum appears uncoloured and the maximum luminous efficiency is shifted to a shorter wavelength than in photopic vision.
Reference: C.I.E.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
