| effective photobiological radiance with the spectral radiance, Lλ, spectrally weighted with the blue light hazard spectral weighting function, B(λ) Note 1 to entry: The wavelength range for the blue light hazard radiance is specified in ICNIRP-recommendations as λ = 300 nm to λ = 700 nm. Note 2 to entry: This definition is based on the assumption that an action spectrum is adopted for the actinic effect considered, and that its maximum value is 1. Note 3 to entry: It is essential to specify which actinic action spectrum is used, as the unit is the same for any action spectrum. Note 4 to entry: The blue light hazard radiance is expressed in watt per square metre per steradian (W·m−2·sr−1).
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