Laserklassifizierung

Laserklassifizierung is a system used to categorize lasers based on their potential hazard to human health, primarily the eyes and skin. This classification is crucial for ensuring the safe use of laser products and informing users about the risks involved. The classification system is standardized internationally by IEC 60825-1 and in the United States by ANSI Z136.1.

Lasers are assigned a class from 1 to 4, with Class 1 being the safest and Class 4 being the most hazardous. Class 1 lasers are considered safe under normal operating conditions, meaning the emitted radiation is not hazardous. Class 1M lasers are safe if the beam is not focused by an optical instrument. Class 2 lasers are visible light lasers (400-700 nm) where eye protection is typically afforded by the blink reflex. Class 2M lasers are safe if the beam is not focused by an optical instrument and the blink reflex is sufficient.

Class 3R lasers present a moderate risk, with a slightly increased chance of injury compared to Class 1 or 2. Direct eye exposure can be hazardous, but the risk is generally low. Class 3B lasers are hazardous if viewed directly. Protective eyewear is usually required when working with these lasers. Finally, Class 4 lasers are the most dangerous. They can cause severe eye and skin damage, and can also be fire hazards. Extremely strict safety precautions, including enclosed beam paths and specialized eyewear, are mandatory when operating Class 4 lasers. Each laser product is required to have a label indicating its class and specific hazard information.