Attention It is made of Molybdenum.Precision slicing polishing and grinding processes;Uncoated, extremely tough surface,Resistance to wipe;Excellent heat resistance;Adapt to work under harsh environment;Excellent optical properties,High working efficiency,Long working life. Reflective lenses is used for planar reflecting the laser beam, suitable for CO2 laser engraving/cutting machines.Before replace or install the Mo laser mirrors, please confirm the diameter firstly. Parameter Material Mo (Molybdenum) Diameter 19.05/20/25/30/38.1mm (optional) Thickness 3/5mm Wavelength 10.6um Reflectivity ＞99.5% Shape Plane AR/AR coating R 90% Surface Quility 40-20 scratch and dig Surface Flatness < λ/2 @ 632.8nm Centration < 3 arc minutes Compatible Power 40~200W Usually one co2 laser engraver needs 1 pcs focus lens and 3 pcs reflective mirrors.CO2 laser mirrors is used in CO2 laser engraving/cutting machines.Adopt closed vacuum packaging to prevent oxidation and corrosion. China PVD ZnSe Laser Lens USA CVD ZnSe Laser Lens GaAs Laser Lens Si Reflective Mirrors Mo Reflective Mirrors Cu Reflective Mirrors Add to Cart Add to Cart Add to Cart Buying Options Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 251 4.5 out of 5 stars 254 4.6 out of 5 stars 3 4.4 out of 5 stars 138 4.2 out of 5 stars 49 4.6 out of 5 stars 2 Price $23.90$23.90 $31.90$31.90 $36.00$36.00 $27.11$27.11 $27.90$27.90 $60.00$60.00 Diameter 18/19/20/25mm 18/19/20/25mm 18/19/20/25m 19/20/25/30/38mm 20/25/30/38mm 20/25/30mm Focal Length 50.8mm 50.8mm 50.8mm No No No Material China PVD ZnSe USA CVD ZnSe GaAs Silicon Molybdenum Copper Wavelength 10.6um 10.6um 10.6um 10.6um 10.6μm 10.6μm Power 40W-150W 40W-200W 40W-200W 40W-200W 40W-200W 40W-500W Coating ✓ ✓ ✓ ✓ - no data ✓