MPE-Maximum Permissible Exposure | The Limits of Laser Safety
Maximum Permissible Exposure (MPE) can be thought of as the "speed limit" for laser safety. It’s the highest amount of laser radiation that your eyes or skin can safely handle without causing harm.
The MPE depends on several factors:
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Wavelength of the Laser: Different colors or types of laser light can have different effects on your body. MPE changes based on the specific wavelength of the laser.
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Exposure Time: How long you’re exposed to the laser matters. Shorter exposure times might allow for higher levels of laser radiation, while longer exposure times require lower levels to stay safe.
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Type of Laser: Whether the laser is continuous wave (CW) or pulsed energy also affects the MPE. Stronger lasers with more energy need stricter limits.
