# 17-26-039

photobiological fluence rate

Eeff,o

spherical irradiance spectrally weighted with a stated photobiological action spectrum

Note 1 to entry: This definition is based on the assumption that an action spectrum is adopted for the photobiological effect considered, and that its maximum value is 1.

Note 2 to entry: It is essential to specify which action spectrum is used, as the unit is the same for any action spectrum.

Note 3 to entry: The photobiological fluence rate is expressed in watt per square metre (W⋅m−2).

Note 4 to entry: This entry was numbered 17-884 in CIE S 017:2011.

Publication date: 2020-12