spectral mismatch correction factor, <for a photometer>
DEPRECATED: colour correction factor
factor by which the readings of a physical photometer can be multiplied in order to correct for the error caused by differences between the relative spectral responsivity of the photometer and the spectral luminous efficiency for photopic vision,
Note 1 to entry: Most photometers are designed to simulate the spectral luminous efficiency for photopic vision,
Note 2 to entry: The term "colour correction factor" is no longer used.
Note 3 to entry: The term "spectral mismatch correction factor" can also be applied to other detectors whose response is intended to simulate a particular observer function, such as actinic radiometers.
Note 4 to entry: The spectral mismatch correction factor has unit one.
Note 5 to entry: This entry was numbered 17-1224 and 17-205 in CIE S 017:2011.