blue light hazard efficacy of luminous radiation, <of a source>
quotient of blue light hazard weighted radiant flux,
Note 1 to entry: The term "luminous radiation" refers to optical radiation weighted with the CIE spectral luminous efficiency function for photopic vision,
Note 2 to entry: The use of this term is only reasonable if parts of the optical radiation are in the visible range and thus
Note 3 to entry: The blue light hazard efficacy of luminous radiation is expressed in watt per lumen (W·lm−1), possibly with a metric prefix.