Product Details Material Quartz Fused Silica Diameter 30mm Focusing Length 100/125/150/155 Application Raytools BT210 Model BT210 High Light High Temperature Resistance Focusing Lens High Temperature Resistance Collimation Lens Raytools BT210 Cutting Head Product Description High Temperature Resistance Focusing Lens Collimation Lens for Raytools BT210 Cutting Head Features Collimating Lens Focusing Lens For Raytools BT210 Cutting Head1.Standard high efficiency low loss anti-reflectance2.Double-side AR coating process,High transmittance3.High Purity Fused Silica,high temperature resistance4.Longlife time,more durable5.Total absorption less than 30PPM,Transmission above 99.8%6.Applicable to laser cutting,laser welding,laser cladding system Detail Raytools BT210 Focusing Lens Assembly Raytools BT210 Focusing Lens(1PCS Convex Lens+ 1PCS Meniscus Lens) Raytools BT21…