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M. Neumann, J. Wassermann:
"Safety Aspects Using Laser Based Measurement Devices";
Talk: 15th International Conference and User Meeting (Stress - Strain - Vibration - Non Destructive Testing), Ulm, Germany; 2008-09-22 - 2008-09-23; in: "15th International Conference and User Meeting", Dantec Dynamics, (2008), ISBN: 978-3-00-025353-9; 1 - 13.

Light amplification by the stimulated emission of radiation, laser, is a special and very powerful type of light generation - still surrounded with an aura of mystery and danger. Are lasers really dangerous? Which risks can result from using laser based measurement systems, such as Laser-Speckle-Interferometers? How can these risks be minimized or even eliminated?

After definition of specific parameters and explanation of their calculation, this presentation gives a brief overview on laser classes and health injury limits (mainly focused on eye and skin protection). According to the properties of laser light, the possible risks occurring when using laser based measurement systems and how to avoid those risks are explained basically. Based on measurements on the ESPI-system (using the continuous wave and the stroboscopic illumination of the sample) in line with the international standard IEC 60825-1, arrangements for safe operation of Q-300 and Q-500 are determined and presented.