Advantages Resistance to wipe;Excellent heat resistanceThe reflection of this silicon mirrors can reach up to 99.2%.With gold plating process,less loss of energy,durable and long service life. Features Si Mirrors Material: Silicon with gold platedHigh Temperature, Laser Resistance.Diameter: 20mm(0.79")/25mm(0.98")Thickness: 3mm/0.12".Wavelength: 10.6 um Technical Parameter Material Silicon Diameter 20mm(0.79inch) /25mm(1inch) Thickness 3mm(0.12inch) Wavelength 10.6um Diameter Tolerance +0/-0.13 mm Thickness Tolerance ±0.25 mm Reflection Rate 99.2% Clear Aperture > 90% Package 3pcs Si Mirror Packing list 3 PCS/SET Tests Surface Quality Test Thermal Test Optical Profiling Centering Tolerance Test Cleaning instructions Step 1 Use an air bulb to blow off any loose contaminnants(dust,lint particles) Step 2 Squeeze a few drops of alcohol or diethyl ether onto the lens tissue, wetting the complete optic's diameter(smudges,fingerprints) Step 3 Using the cotton swab and distilled vinegar,wipe the lens. Immediately use a wet cotton swab to remove any accetic, then clean with a clean dry cotton swab(spittle,oils) USA CVD ZnSe Mo Mirror China CVD ZnSe 40W laser power supply 60W laser power supply Laser marking machine Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Buying Options Customer Reviews — 4.5 out of 5 stars 8 5.0 out of 5 stars 1 3.6 out of 5 stars 14 3.6 out of 5 stars 14 — Price $18.88$18.88 $21.99$21.99 $23.99$23.99 $68.88$68.88 $146.00$146.00 — no data Wavelength 10.6 um 10.6 um 10.6 um CO2 CO2 1064nm