{"product_id":"18mm-znse-focus-lens-38-1mm1-5-focal-length-2-0mm-edge-thickness-for-c02-laser-10-6um-engraver-cutter-machines","title":"18mm ZnSe Focus Lens 2mm Edge Thickness For CO2 Laser 10.6um","description":"\u003ch4\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003e18mm ZnSe Focus Lens for CO₂ Laser – 2mm Edge Thickness – 10.6µm\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003eUpgrade your CO₂ laser system with a premium \u003cstrong\u003e18mm ZnSe Focus Lens\u003c\/strong\u003e engineered for superior engraving precision, cleaner cuts, and reliable high-power performance. Manufactured in the USA by \u003cstrong\u003eAmerican Photonics\u003c\/strong\u003e, this laser-grade Zinc Selenide (ZnSe) lens is optimized for \u003cstrong\u003e10.6µm CO₂ laser systems\u003c\/strong\u003e and designed as a high-performance replacement lens for a wide range of popular laser machines.\u003c\/p\u003e\n\u003cp\u003eFeaturing an \u003cstrong\u003e18mm diameter (.708\")\u003c\/strong\u003e and \u003cstrong\u003e2mm edge thickness\u003c\/strong\u003e, this lens delivers exceptional beam transmission, thermal stability, and optical clarity for professional engraving and cutting applications.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Choose This 18mm ZnSe Focus Lens?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePremium USA-made laser-grade ZnSe material\u003c\/li\u003e\n\u003cli\u003eDual-sided anti-reflective (AR) coating for maximum beam efficiency\u003c\/li\u003e\n\u003cli\u003eExcellent engraving detail and cutting performance\u003c\/li\u003e\n\u003cli\u003eDesigned for CO₂ lasers up to 200W\u003c\/li\u003e\n\u003cli\u003eMultiple focal length options available\u003c\/li\u003e\n\u003cli\u003eHigh optical clarity and thermal durability\u003c\/li\u003e\n\u003cli\u003eIdeal replacement for standard 18mm CO₂ laser lenses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eAvailable Focal Length Options\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003eChoose the focal length best suited for your application:\u003c\/p\u003e\n\u003ch5\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003e38.1mm (1.5\") – Precision Engraving\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003ePerfect for fine detail work, intricate graphics, and high-resolution engraving on wood, acrylic, leather, and coated materials.\u003c\/p\u003e\n\u003ch5\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003e50.8mm (2.0\") – Versatile Everyday Performance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003eA balanced focal length ideal for both engraving and cutting across a wide variety of materials.\u003c\/p\u003e\n\u003ch5\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003e63.5mm (2.5\") – Enhanced Depth \u0026amp; Flexibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003eProvides an excellent balance between engraving precision and deeper cutting capability.\u003c\/p\u003e\n\u003ch5\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003e101.6mm (4.0\") – Extended Focal Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003eDesigned for thicker materials, deeper engraving, and specialty laser applications.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPC Part Number:\u003c\/strong\u003e LM-18-Z-50.8-ET2.0-DBAR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLens Type:\u003c\/strong\u003e CO₂ Laser Focus Lens\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium ZnSe Laser Grade (Made in USA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWavelength:\u003c\/strong\u003e 10.6µm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter (Dia):\u003c\/strong\u003e 18mm (.708\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdge Thickness (ET):\u003c\/strong\u003e 2mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Anti-Reflective (AR) Coated Both Sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Handling:\u003c\/strong\u003e Up to 200W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance:\u003c\/strong\u003e +0 \/ -0.17mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Thickness Tolerance:\u003c\/strong\u003e ±0.1mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear Aperture:\u003c\/strong\u003e ≥90% of Diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScratch\/Dig:\u003c\/strong\u003e 40-20\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch5\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eCompatible CO₂ Laser Machines\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003eCompatible with many popular CO₂ laser systems using 18mm optics, including:\u003c\/p\u003e\n\u003ch5\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eAP Lazer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eAP Lazer 1812\u003c\/li\u003e\n\u003cli\u003eAP Lazer 2616\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eAEON\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eMira Series\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eMonport\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eOnyx-R\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eOMTech\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eAF-2028 60W\u003c\/li\u003e\n\u003cli\u003eAF-2435 80W\u003c\/li\u003e\n\u003cli\u003eK40E 40W\u003c\/li\u003e\n\u003cli\u003eMF-1220 50W\u003c\/li\u003e\n\u003cli\u003eMF-1624 55W\u003c\/li\u003e\n\u003cli\u003eMF-1630 70W\u003c\/li\u003e\n\u003cli\u003eMF-2028 60W \/ 80W \/ 100W\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eOrion\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eOrion 100W\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eCompatibility list is provided as a reference and is not exhaustive.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhat does focal length mean for a CO₂ laser lens?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFocal length determines how tightly the laser beam is focused and affects engraving detail, cutting depth, and working distance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhich focal length is best for engraving?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA 1.5\" or 2.0\" focal length is typically best for detailed engraving and fine artwork.\u003c\/p\u003e\n\u003cp\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhich focal length is best for cutting thicker materials?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eLonger focal lengths like 2.5\" and 4.0\" provide better depth of focus for thicker materials and deeper cuts.\u003c\/p\u003e\n\u003cp\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eIs this lens compatible with my laser machine?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis lens is designed for machines using standard 18mm CO₂ laser optics. Always verify your lens diameter and focal length requirements before ordering.\u003c\/p\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"relative w-full overflow-visible\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003chr\u003e\n\u003cp\u003eNeed help understanding laser lens specifications like \u003cstrong\u003eFocal Length (FL)\u003c\/strong\u003e, \u003cstrong\u003eDiameter (Dia)\u003c\/strong\u003e, or \u003cstrong\u003eEdge Thickness (ET)\u003c\/strong\u003e? Check out our \u003ca href=\"https:\/\/americanphotonics.com\/blogs\/news-and-events\/choosing-the-right-co2-laser-lens-demystifying-diameter-dia-edge-thickness-et-and-focal-length-fl\"\u003e\u003cstrong\u003eChoosing the Right CO₂ Lens\u003c\/strong\u003e\u003c\/a\u003e blog for quick and easy guidance on selecting the perfect lens for your laser applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"contents\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003ca style=\"font-size: 0.875rem;\" href=\"https:\/\/americanphotonics.github.io\/product-finder.html\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1723\/4335\/files\/productselectoricon_c7ce69a5-9021-4834-b763-049bf7c8ba75_160x160.jpg?v=1699887880\" alt=\"product selector\"\u003e\u003c\/a\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e#AmericanPhotonics #CO2LaserLens #PrecisionEngraving #LaserEngraving #LaserCutting #LaserArtistry #MadeInUSA #HighQualityLens\u003c\/p\u003e","brand":"American Photonics","offers":[{"title":"38.1mm(1.5\")","offer_id":40728492867645,"sku":"LM-18-Z-38.1-ET2.0-DBAR","price":53.0,"currency_code":"USD","in_stock":true},{"title":"50.8mm(2.0\")","offer_id":40728492900413,"sku":"LPX-18-Z-50.8-ET2.0-DBAR","price":53.0,"currency_code":"USD","in_stock":true},{"title":"63.5mm(2.5\")","offer_id":40728492933181,"sku":"LM-18-Z-63.5-ET2.0-DBAR","price":53.0,"currency_code":"USD","in_stock":true},{"title":"101.6mm(4.0\")","offer_id":40728492965949,"sku":"LM-18-Z-101.6-ET2.0-DBAR","price":53.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1723\/4335\/files\/CO2LensImage_4_f5b37bac-a263-422f-8bb8-b2953967cb19.png?v=1778595967","url":"https:\/\/shop.americanphotonics.com\/products\/18mm-znse-focus-lens-38-1mm1-5-focal-length-2-0mm-edge-thickness-for-c02-laser-10-6um-engraver-cutter-machines","provider":"American Photonics","version":"1.0","type":"link"}