... .rface quality:80/50 to 20/10 Optical WindowsWe can provide customized Optical Window. The optical windows also can be coated to meet ... your specific requirements. MaterialBK7 etc optical glass to IR CaF2,MgF2,Ge,ZnSe,Mono Si,ZnS ... 0.25mm Edge ChipCoatingUncoated, AR, HR, PR coating, etcAppearanceRestangular,square,circle,wedge,oval etc We believe that we will easily earn ...