blue light hazard radiant exposure [Hb]

effective radiant exposure with the radiant exposure, Hλ, spectrally weighted with the blue light hazard spectral weighting function, b(λ), in the wavelength range λ1 to λ2

Unit: J⋅m-2

NOTE 1 Specified in ICNIRP-recommendations: λ1 =300 nm, λ2 =700 nm.

NOTE 2 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 radiant exposure is meant, as the unit is the same.

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