Basic Laser Safety version 2 last updated March 2014. Course content. What is the general nature of laser radiation? What are the laser health hazards? Why are there different laser classes and warning labels? What are the University’s laser hazard controls?
Light emitted from laser is manmade. Laser beam properties:
Lasers that emit ultraviolet (UV) and infrared (IR) wavelengths can cause:
UV – Keratitis, cornea turns white (6 -12 hours after exposure), retina damage
Retinal damage caused by a class 3 laser reflected off a mirror. Permanent vision damage.
Aperture hazard warning label for class 3R, 3B and 4
Laser hazard warning label