colour.luminous_efficiency¶
-
colour.
luminous_efficiency
(sd, lef=SpectralDistribution(name='CIE 1924 Photopic Standard Observer', ...))[source]¶ Returns the luminous efficiency of given spectral distribution using given luminous efficiency function.
- Parameters
sd (SpectralDistribution) – test spectral distribution
lef (SpectralDistribution, optional) – \(V(\lambda)\) luminous efficiency function.
- Returns
Luminous efficiency.
- Return type
numeric
References
Examples
>>> from colour import LIGHT_SOURCES_SDS >>> sd = LIGHT_SOURCES_SDS['Neodimium Incandescent'] >>> luminous_efficiency(sd) 0.1994393...