Recent Amendment of Laser Safety Standard

Technical Committee No. 76 in the IEC (International Electrotechnical Commission) maintains the international laser safety standard of IEC pub.825, and has amended the standard twice to reflect the recent development in laser related technologies. Main changes include a hazard level increase in the infrared wavelength region, inclusion of LED, and so on. In this review, I will introduce the concept of the laser safety standard including maximum permissible exposure (MPE), laser safety classification, and show the increased classification levels in the infrared region.