LD-Teemm CO2 Laser Focus Lens, 18mm Laser Focal Lens Laser Mirror, CVD ZnSe Lens (1pcs) for CO2 Laser Cutting Engraving 40W-150W Machine, Diameter(Dia($7.15Value)

Description

1. Material: CVD Znse, Diam: 18mm/ 0.71", Focal length: 38.1mm /1.5", Thickness: approximate 2.2mm / 0.087", Tolerance ±0.2 mm, Usage: CO2 Laser Lens for CO2 laser engraving, cutting machine 2. Compatible power: Dia.12mm/15mm/18mm/19.05mm/20mm, 30W-150W; Dia.25mm, Up to 300W, Dia.27.94mm/28mm, Up to 400W CO2 laser resistance; Dia.38.1mm-T7, Up to 2kW CO2 laser resistance; Dia.38.1mm-T9, Up to 3kW CO2 laser resistance. 3. Superb coating process: Double-sided solid coating, Reduces laser loss, Laser transmittance up to 99.8%, Wiping Resistance, Long Working Life. 4. High Precision Process: Excellent Substrate, Precision Slicing, Polishing, Grinding Processes, Adapt to higher operating temperatures. 5. High Transmittance: High Quality Material and Exquisite Coating. Reduce the Loss of Laser, Higher Work Efficiency. How to Determine Focal Length?

The Focal Length is the Distance Between the Focal Lens and the cutter/engraver Material.
When install the Lens, Make Sure the Focal Lens: Convex Face to Laser, Concave Face to Material.


Notice:

1. Make sure the optical path is corrected;
2. Remember to turn on the air pump when working;
3. Make sure the lens is clean and free from condensation.


How to Clean Laser Lens and Mirrors?

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.