blue light hazard irradiance [Eb]
effective irradiance with the spectral irradiance, Eλ, spectrally weighted with the blue light hazard spectral weighting function, b(λ), in the wavelength range λ1 to λ2
NOTE 1 This quantity is typically of interest for small sources subtending less than 0,011 rad.
NOTE 2 Specified in ICNIRP-recommendations: λ1 =300 nm, λ2 =700 nm.
NOTE 3 This definition implies that an action spectrum is adopted for the actinic effect considered, and that its maximum value is 1. When giving a quantitative amount, it is essential to specify according to which actinic action spectrum the irradiance is meant, as the unit is the same.