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演唱会使用高密度激光引热议 专家:需注意个人防护
Ke Ji Ri Bao·2025-09-19 01:09

Core Viewpoint - The use of Class3R lasers in concerts can create impressive visual effects, but safety measures must be in place to mitigate potential risks associated with laser exposure [1][5]. Group 1: Laser Classification and Safety - Class3R lasers are commonly used in concerts and are categorized as medium to high power lasers, capable of producing bright and clear beams in dark environments [2][3]. - The International Electrotechnical Commission (IEC) classifies lasers into four categories (Class1 to Class4) based on their output power and potential hazards, with Class3R being a specific subset that poses certain risks [2][3]. - Safety risks associated with Class3R lasers include potential retinal damage from direct eye exposure, which can occur even with brief contact [3][5]. Group 2: Risk Mitigation Measures - To control risks, dynamic energy regulation systems are employed during concerts to monitor and adjust laser output in real-time, ensuring that exposure levels remain within safe limits [4]. - Specific safety measures include maintaining a minimum distance of 3 meters between the laser beam and the audience, and projecting lasers at angles greater than 30 degrees to avoid direct exposure [4][6]. - It is recommended that audience members avoid direct eye contact with laser beams and take precautions, such as closing their eyes or turning away during laser displays [6].