Name: ZnSe focal lens Diameter: 20MM Focal distance: 50.8MM Edge thickness: 2MM CO2 laser focusing lens is widely used in laser processing for example, cutting, drilling,sculpture engraving etc and laser systems. To meet the markets need, we explored the following two series products: Plano-convex and Meniscus lens. The following are more size model, other size needed, please contact us, Diameter(mm) Base Material Focus length（mm） Thickness(mm) Φ12 ZnSe 25.4/38.1/41/50.8/63.5/100 2 Φ18 ZnSe 25.4/38.1/41/45/50.8/63.5/100 2 Φ19 ZnSe 25.4/38.1/41/50.8/63.5/100 2 Φ20 ZnSe 25.4/38.1/41/50.8/63.5/100 2 Φ22 ZnSe 63.5/80 2 Our CO2 laser lens and mirror can be widely used in the following brand laser machine: YUEMING, KAITIAN, ARGUS,GOLDEN LASER,REDSAIL,LASERWORLD,JIEKE,SENFENG, SHENHUI, ZHONGTAI,JINQIANG,BAISHENG,G.WEIKE,CHUTIAN,GOLDENSIGN,HE LASER, RUIDI LASER,ETC.