18mm Focal Focus Lens by American Photonics for Up To 200W CO2 Laser Engraver Cutter

Advanced Specifications: Diameter: 18mm (.708") Anti-reflective coated lens for <200W Type: Meniscus Laser Focal Lens Material: Znse Laser Grade (made in the USA) Coating: 10.6um (AR Both Side) Diameter Tolerance: +0/-0.13mm Center Thickness Tolerance: ± 0.1mm Focal Length Tolerance: < 1% Clear Aperture: >= 90% Diameter Scratch/Dig: 40-20 Cutting Edge Features: OMTECH TESTED: Each American Photonics focal lens is tested on OMTech machines and approved by our laser specialists. QUALITY ZINC SELENIDE: Manufactured with premium zinc selenium via chemical vapor deposition for superior light transmission and heat tolerance. EXACTING LENS DIMENSIONS: Each lens is engineered and built with only a 0.003mm margin for error to ensure finer laser focus on high-resolution engravings and enable sharper cutting abilities. ULTRA-PURE MANUFACTURING: American Photonics utilizes an ultra-clean production room to ensure every focal lens is free from all impurities, reducing heat damage and en