{"product_id":"genuine-ii-vi-cvd-znse-co2-laser-focus-lens-10-6um","title":"LinkMetal CNC II-VI CVD ZnSe CO2 Laser Focus Lens","description":"\u003ch2\u003eGenuine II-VI CVD ZnSe CO2 Laser Focus Lens 10.6μm\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003e100% genuine II-VI original CVD ZnSe focus lens specially designed for 10.6μm CO2 laser equipment.\u003c\/strong\u003e Original factory quality with unmatched optical performance, high transmittance, high damage threshold and excellent thermal stability. Ideal for high power laser cutting and engraving operations where maximum reliability and efficiency are required.\u003c\/p\u003e\n\n\u003cp\u003eEach lens comes with II-VI original hard protective case, certificate of authenticity and factory laser marking for anti-counterfeiting verification. All products undergo strict II-VI factory quality testing to ensure the highest level of performance and reliability.\u003c\/p\u003e\n\n\u003ch3\u003eKey Advantages of Our Genuine II-VI CO2 Focus Lenses\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% Genuine II-VI Original Product\u003c\/strong\u003e: Guaranteed authentic with factory laser marking on the lens edge and complete anti-counterfeiting identification. Each lens includes an original II-VI certificate of authenticity.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003ePremium II-VI CVD ZnSe Material\u003c\/strong\u003e: Made from genuine II-VI chemical vapor deposition zinc selenide. Features ultra-low absorption rate (\u0026lt;0.0005 cm⁻¹ @10.6μm) and excellent thermal conductivity, virtually eliminating thermal lens effect even under continuous high power operation.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eII-VI Proprietary Anti-Reflection Coating\u003c\/strong\u003e: Features II-VI's proprietary double-sided anti-reflection coating optimized for 10.6μm wavelength. Provides transmittance greater than 99.5%, minimizing energy loss and maximizing cutting efficiency.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eIndustry-Leading Damage Threshold\u003c\/strong\u003e: Exceptional laser damage threshold of \u0026gt;15 kW\/cm² @10.6μm (CW). Stable performance under continuous high power operation up to 5000W.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003ePrecision Optical Manufacturing\u003c\/strong\u003e: Precision polished to 40\/20 surface quality (MIL-PRF-13830B), significantly better than standard 60\/40 lenses. No scratches, no bubbles, no inclusions, ensuring perfect laser beam quality.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003e14 Standard Specifications\u003c\/strong\u003e: Complete range of diameters and focal lengths available, covering all mainstream high power CO2 laser machine models and application requirements.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eComprehensive Factory Testing\u003c\/strong\u003e: Each lens undergoes rigorous II-VI factory testing including transmittance test, surface quality inspection, wavefront error measurement and dimensional accuracy verification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Equipment \u0026amp; Available Specifications\u003c\/h3\u003e\n\n\u003ch4\u003eCompatible Equipment\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAll Mainstream High Power CO2 Laser Cutting Machines (1000W-5000W)\u003c\/li\u003e\n  \u003cli\u003eIndustrial Grade CO2 Laser Engraving Machines\u003c\/li\u003e\n  \u003cli\u003ePrecision CO2 Laser Marking Machines\u003c\/li\u003e\n  \u003cli\u003eAll 10.6μm CO2 Laser Processing Equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAvailable Focus Lens Specifications\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD19.05mm FL38.1mm\u003c\/strong\u003e: 19.05mm (3\/4\") diameter, 38.1mm (1.5\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD19.05mm FL50.8mm\u003c\/strong\u003e: 19.05mm (3\/4\") diameter, 50.8mm (2\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD19.05mm FL63.5mm\u003c\/strong\u003e: 19.05mm (3\/4\") diameter, 63.5mm (2.5\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD19.05mm FL76.2mm\u003c\/strong\u003e: 19.05mm (3\/4\") diameter, 76.2mm (3\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD20mm FL38.1mm\u003c\/strong\u003e: 20mm diameter, 38.1mm (1.5\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD20mm FL50.8mm\u003c\/strong\u003e: 20mm diameter, 50.8mm (2\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD20mm FL63.5mm\u003c\/strong\u003e: 20mm diameter, 63.5mm (2.5\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD20mm FL76.2mm\u003c\/strong\u003e: 20mm diameter, 76.2mm (3\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD20mm FL101.6mm\u003c\/strong\u003e: 20mm diameter, 101.6mm (4\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD25mm FL50.8mm\u003c\/strong\u003e: 25mm diameter, 50.8mm (2\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD25mm FL63.5mm\u003c\/strong\u003e: 25mm diameter, 63.5mm (2.5\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD25mm FL76.2mm\u003c\/strong\u003e: 25mm diameter, 76.2mm (3\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD25mm FL101.6mm\u003c\/strong\u003e: 25mm diameter, 101.6mm (4\") focal length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD25mm FL127mm\u003c\/strong\u003e: 25mm diameter, 127mm (5\") focal length\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCustom Specifications Available\u003c\/strong\u003e: For custom diameters, focal lengths or special coatings, please \u003ca href=\"https:\/\/www.linkmetalcnc.com\/pages\/contact\" style=\"color: #1976d2 !important; text-decoration: none; font-weight: 500 !important;\"\u003econtact our sales team\u003c\/a\u003e directly for personalized solutions and volume discounts.\u003c\/p\u003e\n\n\u003ch3\u003eDetailed Technical Specifications\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%; border-collapse: collapse; margin: 20px 0;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n      \u003cth style=\"border: 1px solid #dee2e6; padding: 12px; text-align: left; font-weight: 600;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"border: 1px solid #dee2e6; padding: 12px; text-align: left; font-weight: 600;\"\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eBrand\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eII-VI Infrared \/ Link Metal CNC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eGrade\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eOriginal Factory Premium Grade\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eProduct Type\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eII-VI CVD ZnSe CO2 Laser Focus Lens\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eMaterial\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eGenuine II-VI CVD Zinc Selenide (ZnSe)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eWorking Wavelength\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e10.6μm (CO2 Laser)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eCoating\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eII-VI Proprietary Double-Sided Anti-Reflection Coating\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eSurface Quality\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e40\/20 (MIL-PRF-13830B)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eTransmittance\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e\u0026gt;99.5% @10.6μm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eAbsorption Coefficient\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e\u0026lt;0.0005 cm⁻¹ @10.6μm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eWavefront Error\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e\u0026lt;λ\/2 @632.8nm per 1\" diameter\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eFocal Length Tolerance\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e±2%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eCentration\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e\u0026lt;3 arc minutes\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eLaser Damage Threshold\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e\u0026gt;15 kW\/cm² @10.6μm (CW)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eAvailable Diameters\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e19.05mm, 20mm, 25mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eAvailable Focal Lengths\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e38.1mm, 50.8mm, 63.5mm, 76.2mm, 101.6mm, 127mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eApplicable Power\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e100W - 5000W\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eApplicable Equipment\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eHigh Power CO2 Laser Cutting, Engraving Machines\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eApplication Scenario\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eHigh Precision Cutting, Industrial Engraving, 24\/7 Production\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Genuine II-VI CVD ZnSe CO2 Laser Focus Lens (selected size)\u003c\/li\u003e\n  \u003cli\u003e1 x II-VI Original Hard Protective Case\u003c\/li\u003e\n  \u003cli\u003e1 x II-VI Original Certificate of Authenticity\u003c\/li\u003e\n  \u003cli\u003e1 x Microfiber Cleaning Cloth\u003c\/li\u003e\n  \u003cli\u003e1 x Sealed Dust-proof Protective Packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQuality Assurance\u003c\/h3\u003e\n\u003cp\u003eAll II-VI focus lenses are 100% original factory products with complete anti-counterfeiting identification. Each lens undergoes strict II-VI factory quality testing including transmittance test, surface quality inspection, wavefront error measurement and dimensional accuracy verification.\u003c\/p\u003e\n\n\u003cp\u003eWe guarantee that every lens we sell is authentic and meets II-VI's highest quality standards. All our products come with professional pre-sales consultation and comprehensive after-sales support.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How can I verify that the lens is a genuine II-VI product?\u003c\/strong\u003e\u003cbr\u003e\nA: All genuine II-VI lenses have three anti-counterfeiting features: 1) Laser marking of the II-VI logo and part number on the lens edge; 2) Original II-VI hard plastic case with printed label; 3) Original II-VI certificate of authenticity with unique serial number. You can also contact II-VI directly to verify the serial number.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between II-VI lenses and other CVD ZnSe lenses?\u003c\/strong\u003e\u003cbr\u003e\nA: II-VI is the world's leading manufacturer of ZnSe optical materials. Their proprietary CVD process produces material with significantly lower absorption, higher thermal conductivity and better optical homogeneity than other CVD ZnSe. II-VI's proprietary AR coating also provides higher transmittance and better durability than standard coatings. These differences result in 10-15% higher cutting efficiency and 2-3 times longer service life under high power operation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: When should I choose II-VI lenses over other grades?\u003c\/strong\u003e\u003cbr\u003e\nA: Choose II-VI original lenses if you have a high power laser (\u0026gt;1500W), require maximum cutting efficiency and quality, operate 24\/7 in production environments, or want the longest possible service life. For low to medium power applications or budget-conscious operations, we also offer economical PVD and standard import grade CVD lenses.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How long does an II-VI focus lens last?\u003c\/strong\u003e\u003cbr\u003e\nA: Under normal operating conditions with proper maintenance, an II-VI focus lens should last 6-12 months. This is 2-3 times longer than standard CVD lenses. Service life can be extended by using proper air filtration, regular cleaning and avoiding cutting oily or reflective materials.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use II-VI lenses in any CO2 laser machine?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, II-VI lenses are manufactured to standard dimensions and are compatible with all mainstream CO2 laser machine brands. They are a direct drop-in replacement for original lenses and require no additional debugging or modification.\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 30px; padding: 15px; background-color: #e3f2fd; border-radius: 4px;\"\u003e\n  Also available: \u003ca href=\"https:\/\/www.linkmetalcnc.com\/products\/cvd-znse-co2-laser-focus-lens-10-6um\" style=\"color: #1976d2 !important; text-decoration: none; font-weight: 500 !important;\"\u003eStandard Import Grade CVD ZnSe Lenses\u003c\/a\u003e and \u003ca href=\"https:\/\/www.linkmetalcnc.com\/products\/economical-pvd-znse-co2-laser-focus-lens-10-6um\" style=\"color: #1976d2 !important; text-decoration: none; font-weight: 500 !important;\"\u003eEconomical PVD ZnSe Lenses\u003c\/a\u003e for different budget and power requirements.\n\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 15px; padding: 15px; background-color: #e3f2fd; border-radius: 4px;\"\u003e\n  View our full range of \u003ca href=\"https:\/\/www.linkmetalcnc.com\/collections\/co2-optical-lenses\" style=\"color: #1976d2 !important; text-decoration: none; font-weight: 500 !important;\"\u003elaser cutting accessories\u003c\/a\u003e including CO2 protective lenses, mirrors, nozzles and more.\n\u003c\/p\u003e","brand":"LinkMetal CNC","offers":[{"title":"D19.05mm FL38.1mm","offer_id":48134798835934,"sku":"LMCNC-ZNSE-IIVI-D19.05-FL38.1","price":25.9,"currency_code":"USD","in_stock":true},{"title":"D19.05mm FL50.8mm","offer_id":48134798868702,"sku":"LMCNC-ZNSE-IIVI-D19.05-FL50.8","price":25.9,"currency_code":"USD","in_stock":true},{"title":"D19.05mm FL63.5mm","offer_id":48134798901470,"sku":"LMCNC-ZNSE-IIVI-D19.05-FL63.5","price":25.9,"currency_code":"USD","in_stock":true},{"title":"D19.05mm FL76.2mm","offer_id":48134798934238,"sku":"LMCNC-ZNSE-IIVI-D19.05-FL76.2","price":25.9,"currency_code":"USD","in_stock":true},{"title":"D20mm FL38.1mm","offer_id":48134798967006,"sku":"LMCNC-ZNSE-IIVI-D20-FL38.1","price":29.0,"currency_code":"USD","in_stock":true},{"title":"D20mm FL50.8mm","offer_id":48134798999774,"sku":"LMCNC-ZNSE-IIVI-D20-FL50.8","price":29.0,"currency_code":"USD","in_stock":true},{"title":"D20mm FL63.5mm","offer_id":48134799032542,"sku":"LMCNC-ZNSE-IIVI-D20-FL63.5","price":29.0,"currency_code":"USD","in_stock":true},{"title":"D20mm FL76.2mm","offer_id":48134799065310,"sku":"LMCNC-ZNSE-IIVI-D20-FL76.2","price":29.0,"currency_code":"USD","in_stock":true},{"title":"D20mm FL101.6mm","offer_id":48134799098078,"sku":"LMCNC-ZNSE-IIVI-D20-FL101.6","price":29.0,"currency_code":"USD","in_stock":true},{"title":"D25mm FL50.8mm","offer_id":48134799130846,"sku":"LMCNC-ZNSE-IIVI-D25-FL50.8","price":87.9,"currency_code":"USD","in_stock":true},{"title":"D25mm FL63.5mm","offer_id":48134799163614,"sku":"LMCNC-ZNSE-IIVI-D25-FL63.5","price":87.9,"currency_code":"USD","in_stock":true},{"title":"D25mm FL76.2mm","offer_id":48134799196382,"sku":"LMCNC-ZNSE-IIVI-D25-FL76.2","price":87.9,"currency_code":"USD","in_stock":true},{"title":"D25mm FL101.6mm","offer_id":48134799229150,"sku":"LMCNC-ZNSE-IIVI-D25-FL101.6","price":87.9,"currency_code":"USD","in_stock":true},{"title":"D25mm FL127mm","offer_id":48134799261918,"sku":"LMCNC-ZNSE-IIVI-D25-FL127","price":87.9,"currency_code":"USD","in_stock":true},{"title":"Other models please contact us","offer_id":48134799294686,"sku":null,"price":87.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/8858\/5950\/files\/linkmetal-cnc-ii-vi-cvd-znse-co2-laser-focus-lens-10_9799ed05-3023-4ab7-ac7c-3a6d7d343dec.jpg?v=1776756750","url":"https:\/\/www.linkmetalcnc.com\/products\/genuine-ii-vi-cvd-znse-co2-laser-focus-lens-10-6um","provider":"Link Metal CNC ","version":"1.0","type":"link"}