The bril is an old, non-
SI, unit of
luminance. The SI unit of luminance is the
candela per square metre.
Unit conversions
See also
*
Photometry (optics)
Photometry is the science of the measurement of light, in terms of its perceived brightness to the human eye. It is distinct from radiometry, which is the science of measurement of radiant energy (including light) in terms of absolute power. ...
Units of luminance
Centimetre–gram–second system of units
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