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illuminance

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
il·lu·mi·nance  (-lm-nns)
n.
See illumination.
illuminance [ɪˈluːmɪnəns]
n
(Physics / General Physics) the luminous flux incident on unit area of a surface. It is measured in lux. Symbol Ev Sometimes called illumination Compare irradiance
illuminance  (-lm-nns)
The luminous flux per unit area at any point on a surface exposed to incident light. It is measured in luxes. Also called illumination.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.illuminance - the luminous flux incident on a unit area
illumination
brightness level, luminance, luminosity, luminousness, brightness, light - the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun"


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In both of these we consider the calculation of illuminance response to CIE illuminant D65, a tabulated distribution carrying no uncertainty, for a photometer whose spectral response is a close approximation to [V.
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can measure tristimulus colorimetrics, chromaticity, color difference, and both color temperature and illuminance of light sources.
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