45 degree laser Spectroscope lens 20*2mm 355nmHR T=20%/50%/60%/80% Imported Quartz JGS1 circular plano Raytools glass
Name | Spectroscope | |
Reflective | 99.8%-99.9% | |
Chamfer | 0.2mm*45° | |
Surface quality | 40/20 | |
Wavelength | 355nm | |
Application | laser welding engraving machine | |
Size | 20*2mm |