• High-purity quartz substrate with excellent thermal stability • High damage threshold; less prone to cracking • Fine spot size; clean and aesthetically pleasing welds • JGS1 Fused Silica; Wavelength 1064 nm; Double-sided AR coating; Transmittance > 99.9%; Suitable for handheld welding • Model D20T4.5F150 focusing lens compatible with 20S/T, 21T, 23S/T, and SW150 series laser welding systems
