20mm/0.79 ZnSe Focus Lens with 10.6um Wavelength 99.5% Light Transmittance 63.5mm/2.5in Focal Length for Laser Engraver Cutter Engraving Machine

Features: Quality assurance High quality ZnSe material ensures reliable light transmittance and stable laser system. 99.5% light transmittance The carbon dioxide laser transmittance of the lens reaches 99.5% at the critical 10.6um wavelength and it has excellent transparency. Practical This ZnSe focus mirror makes the laser more focused to improve the efficiency laser engraving/cutting. Durable Our ZnSe Focus Lens has durable surface film which is scratch and wear resistant allowing strong durability and long service life. Scope of application The ZnSe focus lens works for laser engravers etchers markers and cutters from DIY 50W boxes to powerful 200W industrial engraving equipment. Specifications: Item type: ZnSe focus lens Material: ZnSe Color: golden Wavelength: 10.6um Light transmittance: 99.5% Transparent aperture: >90% AR/AR coating: R