https://doi.org/10.1351/goldbook.L03640
Photometric counterpart of ( ), ( ), ( ). As with all photometric quantities, luminance does not refer to a specific ). Conversion from photometric units to radiometric units (e.g. ) requires convolution over
radiance
, producing the visual sensation called brightness
. Typical units are: wavelength
, but applies to light emitted by a standard source (formerly a 'standard international candle', now a blackbody radiator emitting at the temperature of solidifying platinum, wavelength
of the relative spectral response of the human eye (photopic response tables).