Simplified assessment of blue light emissions based on photometric measurements: example of application to LEDs and fluorescent lamps for general lighting systems

The human-luminous environment interaction is a topic of interest to the scientific community from the perspectives of comfort and health. The widespread introduction of innovative lighting sources, often justified by energy-saving reasons, poses new challenges for evaluating their emissions and estimating their photobiological effects. In this paper, the results of a measurement campaign to characterize the artificial optical radiation emitted by LED sources suitable for replacing traditional sources used in general lighting are discussed and compared with similar results obtained for fluorescent tubes. The evaluation methods described and the measurement results shown in this paper can be useful for those who regularly perform risk assessments of work environments.