1. www.jst.umn.edu Laser Pointer Safety 1

2. www.jst.umn.edu Laser Pointer Safety Commonly used during presentations Differ in power output, but look the same. – Most are < 5 mW – 30 mW or even 100 mW are available for under $100. Carnegie Mellon University, Environmental Health and Safety Newsletter http://www.cmu.edu/ehs/newsletters/lab-safety/laser-pointer-safety.html

3. www.jst.umn.edu Laser Pointer Safety Emit infrared light in addition to visible light. – A 50 mW laser can immediately cause permanent eye injury. – A 200 mW laser can cause permanent eye damage in less than the time it takes to blink, even from 100 yards away. Lasers are labeled. For presentations avoid: – Power over 5 mW – Class 3B or 4 Carnegie Mellon University, Environmental Health and Safety Newsletter http://www.cmu.edu/ehs/newsletters/lab-safety/laser-pointer-safety.html