MCWlaser 18mm CO2 Laser Lens, PVD ZnSe Focus Lens for 10600nm 10.6um Engraver/Cutter Dia:18mm FL: 3 inch or 76.2mm

【High-Quality Material】 Made of premium PVD ZnSe crystal material, ensuring excellent optical performance, high light transmission (≥99.5%), and strong resistance to high temperatures and minimal scattering losses. Double-sided solid coating minimizes laser loss, wiping resistant and extends service life. 【Precision Specifications】 Diameter: 18mm (0.71 inch); Focal Length: 76.2mm (3 inch); Thickness: 2–2.2mm (0.08 inch). Precisely polished and ground for accurate focusing, delivering clean cuts and detailed engravings. 【Wide Compatibility】 Specially designed for 30W–100W CO2 lasers (10600nm / 10.6 μm wavelength). Compatible with many popular laser heads, engraving and cutting machines, and DIY CO2 laser systems. 【Professional Performance】 Optimized for stable, long-term use. Ensures minimal scattering, consistent high efficiency, and reliable results across various applications—from cutting acrylic, wood, and leather to fine engraving on glass, stone, and coated metals. 【Easy Replacement】 Standard size makes installation simple—an ideal replacement for worn or damaged lenses, keeping your laser system at peak performance., Weight: 0.0220462262 Pounds, Manufacturer: Shanghai Top Nine Industrial Co.,Ltd