Infrared windows is one of the basic components in optics. It is an optical plate that plays the role of protecting electronic components in optical path. It does not change the optical magnification and only affects the optical path in the optical path. Product application:Infrared optical smoke smoke concentration online monitoring equipment, pollution source smoke emission monitoring, dust concentration monitoring in industrial manufacturing, production workshop workshop dust load monitoring equipment, infrared detector, security system, night vision system, etc. Size 3-260mm Surface finish 10-5 Error of diameter 0.0/0.1 mm Parallelism 5“ Materials Ge、Si、Zn…