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Revision as of 10:58, 6 September 2016
Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction.
Description
Luminance describes the amount of light that passes through, is emitted or reflected from a particular area, and falls within a given solid angle.
The SI unit for luminance is candela per square metre (cd/m2).
A non-SI term for the same unit is the "nit".
The CGS unit of luminance is the stilb, which is equal to one candela per square centimetre or 10 kcd/m2.
See also
- Brightness, the subjective impression of luminance
- Diffuse reflection
- Etendue
- Exposure value
- Glare
- Lambertian reflectance
- Lightness, property of a color
- Luma, the representation of luminance in a video monitor
- Lumen (unit)
- Luminance meter
- Orders of magnitude (luminance)
- Radiance, radiometric quantity analogous to luminance
== External links
- Luminance @ Wikipedia
