Transcription of Laser Safety Fundamentals - EHS
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Laser Safety Fundamentals - EHS
UW Laser Safety Manual August 2007 Radiation Safety Office Environmental Health and Safety University of Washington Box 354400 Seattle WA 98195-4400 Phone: FAX: 1 Contents 1. Laser Basics Laser Theory Types of Lasers 2. Hazards and Safety Standards Introduction The Eye Damage to the Eye UV-C and UV-B UV-A Visible and Infrared-A Infrared-B and Infrared-C Symptoms of Exposure The Skin Damage to the Skin Non-beam Hazards Introduction Electrical Hazard Potential Guidelines to Reduce Electrical Hazards Other Hazards Hazard Classes Introduction Class 3B Lasers Class 4 Lasers Safety Standards 3.
damage can occur to the retina due to the focusing effect of the cornea and lens, which can increase the irradiance on the retina by as much as 100,000 times. The natural aversion reflex of the eye (0.25 seconds) can reduce damage if the light is in the visible range and the intensity of the light is low enough to not
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