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Size: D:18mm FL:63.5mm/2.5"
Features
Description
Attention CO2 laser focal lens can be applied to CO2 laser engraving/cutting machines. Generally, a laser machine needs 1 piece of focal lens and 3 reflective mirrors.For engraving, it’s recommended to use the lens of focal length 38.1/50.8mm; for cutting, lenses of focal length 63.5/76.2/101.6mm are more commonly used.Suggestion: convex upward, the plane side faces to material. Product Details - D18mm Diameter 18mm/0.71 inch (‘+0.0/-0.1mm) Focal Length 25.4/38.1/50.8/63.5/76.2/101.6/127/190.5mm (‘±0.01mm) Thickness FL50.8/63.5mm:2mm; others:2.2mm ('+0.2mm/-0.1mm) Material China PVD Znse Compatible Power 30W-100W Transmittance ≥99.5% Wavelength 10.6um Shape FL50.8/63.5mm:Meniscus; Others:Plano-Convex Double-side AR Coating R<0.5% per surface Clear Aperture >90% (polished) Surface Quility 40-20 scratch and dig Centration <3 arc minutes Package 1 pcs, 0.1KG Package Dimension 6cm x 6cm x 2cm How to determine focal length? Notes: Before installing the lens, please confirm the diameter and focal length.The focal length is the distance between the lens and the cutting/engraving material.Suggestion: convex upward, the plane side faces to material. China PVD ZnSe Focal Lens USA CVD ZnSe Focal Lens GaAs Focal Lens Mo Reflective Lens Si Reflective Lens Diameter 12/15/18/19.05/20/25/25.4mm 12/15/18/19.05/20/25/25.4/28/38.1mm 18/19.05/20/25/25.4/28mm 20/25/30mm 20/25/30mm Focal Length 25.4/38.1/50.8/63.5/76.2/101.6/127/190.5 mm 25.4/38.1/50.8/63.5/76.2/101.6/127/190.5 mm 50.8/63.5/76.2/101.6/127mm None None Material China PVD ZnSe USA PVD ZnSe GaAs Molybdenum Silicon Wavelength 10.6um 10.6um 10.6um 10.6μm 10.6μm Power 30W-400W 30W-400W 100W-600W 40W-100W 60W-400W Coating ✓ ✓ ✓ X ✓ How to clean CO2 laser lens? Step 1 - Cleaning for Light Contamination (dust, lint particles) Use an air bulb to blow off any loose contaminants from the optic surface before proceeding to the cleaning steps. Step 2 - Cleaning for Light Contamination (smudges, fingerprints) Lay the lens tissue on the optic's surface. Using an eyedropper, squeeze a few drops of acetone onto the lens tissue, wetting the complete optic's diameter. Without lifting the lens tissue, drag the lens tissue across the optic just fast enough so that the liquid evaporates behind the tissue. This should leave no streaks. Step 3 - Cleaning for Moderate Contamination (spittle, oils) Dampen an unused cotton swab or cotton ball with white distilled vinegar. Using light pressure, wipe the optic's surface with the damp cotton. Wipe excess distilled vinegar with a clean dry cotton swab. Immediately dampen a cotton swab or cotton ball with acetone. Gently wipe the optic's surface to remove any acetic acid. Read more
Product Dimensions: 1.97 x 0.79 x 1.97 inches
Item model number: ABCD
Is Discontinued By Manufacturer: No
Item Weight: 0.704 ounces
Manufacturer: TEN-HIGH
Date First Available: April 25, 2016