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 SDS_LIGHT_SOURCES >>> sd = SDS_LIGHT_SOURCES['Neodimium Incandescent'] >>> luminous_efficiency(sd) 0.1994393...