Lasers and LEDs have been classified according to their hazard since the 1970s in the standard IEC 825 (later IEC 60825). In 2005 LEDs were shifted into IEC 62471-1:2005 “Photobiological safety of lamps and lamps systems”. The measurement conditions for this standard were set at 200 mm with varying fields of view based on risk … Continue reading LED Testing to EN 62471