glossary book
Show Laser Glossary, Definitions & Explanations This Glossary shall provide general definitions for terms used on this website as well as give some background information on terms and topics used in show laser and entertainment industry.
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Maximum Permissible Exposure

The Maximum Permissible Exposure (MPE) is the highest laser power that is considered safe for the eye. This value usually ranges in the allowed level for laser class 2. The term is mainly used when specifying the safety of an audience scanning laser show.

See this video for the explanation of the difference between MPE and Accessible Radiation (AR):

 

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