In laser processing, the focusing lens plays a crucial role. It concentrates kilowatts of laser energy into a micron-sized spot. However, the ZnSe material is notably soft. Furthermore, it easily attracts smoke and dust. Even tiny dust particles can quickly carbonize under high laser temperatures. This forms a "burn spot,"...
Laser Safety Classification Explained Risk and Distinction from Class 1 to Class 4
Lasers, these "miraculous lights," precisely treat diseases and process materials. However, they can instantly cause irreversible harm to humans. Thus, to quantify this risk, the International Electrotechnical Commission (IEC 60825-1) and the American National Standards Institute (ANSI Z136) established a universal safety classification system. Ultimately, therefore, understanding these classifications is...