colour.constants.CONSTANT_KP_M¶
- colour.constants.CONSTANT_KP_M = 1700.0¶
Rounded maximum scotopic luminous efficiency \(K^{\prime}_m\) value in \(lm\cdot W^{-1}\).
CONSTANT_KP_M : numeric
Notes
To be adequate for all practical applications the \(K^{\prime}_m\) value has been rounded from the original 1700.06 value.
References
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