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luminance
Sign in to savethumb|A tea light-type candle, imaged with a luminance camera; [[false colors indicate luminance levels per the bar on the right (cd/m2)]] Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction. It describes the amount of light that passes through, is emitted from, or is reflected from a particular area, and falls within a given solid angle.
~6 min read
Article
10 sectionsContents
- Description
- Health effects
- Luminance meter
- Formulation
- Relation to illuminance
- Units
- See also
- Table of SI light-related units
- References
- External links
thumb|A tea light-type candle, imaged with a luminance camera; [[false colors indicate luminance levels per the bar on the right (cd/m2)]] Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction. It describes the amount of light that passes through, is emitted from, or is reflected from a particular area, and falls within a given solid angle.
The procedure for conversion from spectral radiance to luminance is standardized by the CIE and ISO.