Measurement of Photobiogical Safety for LEDs with Different Spectra

This paper is about photobiological safety of LED, especially blue light hazard. All measurements and evaluations was carried out in accordance with lEC/EN 62471. The 10 W LEDs with different spectra were measured. Monochromatic LEDs and white light LEDs were measured. The purpose of this article was to find out how to change of the blue light hazard for different color composition of the emitted spectrum in LEDs with the same power.