{"product_id":"20mm-znse-focus-lens-for-c02-laser-10-6um","title":"20mm ZnSe Focus Lens for CO₂ Lasers – 10.6µm – High-Performance Replacement Lens","description":"\u003ch4 data-section-id=\"2ithoi\" data-start=\"0\" data-end=\"87\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3\" data-end=\"87\"\u003e20mm ZnSe Focus Lens for CO₂ Lasers – 10.6µm – High-Performance Replacement Lens\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-start=\"89\" data-end=\"459\"\u003eUpgrade your CO₂ laser system with our premium \u003cstrong data-start=\"136\" data-end=\"160\"\u003e20mm ZnSe Focus Lens\u003c\/strong\u003e, engineered for exceptional beam quality, improved thermal performance, and long-lasting durability. Designed as a direct replacement for standard \u003cstrong data-start=\"308\" data-end=\"333\"\u003e20mm CO₂ laser lenses\u003c\/strong\u003e, this high-performance optic delivers outstanding results for engraving, cutting, marking, and industrial laser applications.\u003c\/p\u003e\n\u003cp data-start=\"461\" data-end=\"653\"\u003eManufactured from premium laser-grade Zinc Selenide (ZnSe), this lens is optimized for \u003cstrong data-start=\"548\" data-end=\"576\"\u003e10.6µm CO₂ laser systems\u003c\/strong\u003e and built to provide consistent laser performance in demanding environments.\u003c\/p\u003e\n\u003chr data-start=\"655\" data-end=\"658\"\u003e\n\u003ch4 data-section-id=\"1ayopaf\" data-start=\"660\" data-end=\"705\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"663\" data-end=\"705\"\u003eWhy Upgrade to Our Enhanced 20mm Lens?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003ch5 data-section-id=\"j2sdng\" data-start=\"707\" data-end=\"744\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"711\" data-end=\"744\"\u003eEnhanced Thermal Conductivity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp data-start=\"745\" data-end=\"907\"\u003eAdvanced thermal management helps dissipate heat quickly, reducing lens overheating during extended laser operation and improving overall performance consistency.\u003c\/p\u003e\n\u003ch5 data-section-id=\"yx1a08\" data-start=\"909\" data-end=\"939\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"913\" data-end=\"939\"\u003eDurable Aluminum Mount\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp data-start=\"940\" data-end=\"1068\"\u003eEach lens is housed in a rugged aluminum mount that protects the optic while making installation, handling, and cleaning easier.\u003c\/p\u003e\n\u003ch5 data-section-id=\"3pe3dq\" data-start=\"1070\" data-end=\"1106\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1074\" data-end=\"1106\"\u003ePremium ZnSe Optical Quality\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp data-start=\"1107\" data-end=\"1285\"\u003eManufactured from top-tier laser-grade ZnSe material with a design rating up to \u003cstrong data-start=\"1187\" data-end=\"1196\"\u003e6000W\u003c\/strong\u003e, offering exceptional optical clarity and durability for high-performance laser systems.\u003c\/p\u003e\n\u003ch5 data-section-id=\"b33y6h\" data-start=\"1287\" data-end=\"1326\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1291\" data-end=\"1326\"\u003eLaser-Etched Precision Markings\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp data-start=\"1327\" data-end=\"1442\"\u003eClearly engraved focal length and beam direction indicators ensure fast installation and accurate lens orientation.\u003c\/p\u003e\n\u003ch5 data-section-id=\"1dyrjfy\" data-start=\"1444\" data-end=\"1479\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1448\" data-end=\"1479\"\u003eStress-Free Lens Suspension\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp data-start=\"1480\" data-end=\"1675\"\u003eUnlike conventional mounted optics, this 20mm lens features a stress-free adhesive suspension system that minimizes crystal stress, reduces beam distortion, and eliminates the need for an O-ring.\u003c\/p\u003e\n\u003ch5 data-section-id=\"1j9jr2z\" data-start=\"1677\" data-end=\"1717\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1681\" data-end=\"1717\"\u003eDirect Replacement Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp data-start=\"1718\" data-end=\"1797\"\u003eEngineered as a direct replacement for most standard \u003cstrong data-start=\"1771\" data-end=\"1796\"\u003e20mm CO₂ laser lenses\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch5 data-section-id=\"19qhbrs\" data-start=\"1799\" data-end=\"1829\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1803\" data-end=\"1829\"\u003eSatisfaction Guarantee\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp data-start=\"1830\" data-end=\"1928\"\u003eIf you're not fully satisfied, return the lens for full credit toward a standard replacement lens.\u003c\/p\u003e\n\u003chr data-start=\"1930\" data-end=\"1933\"\u003e\n\u003ch4 data-section-id=\"1upo6c7\" data-start=\"1935\" data-end=\"1972\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1938\" data-end=\"1972\"\u003eAvailable Focal Length Options\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-start=\"1974\" data-end=\"2031\"\u003eChoose the focal length best suited for your application:\u003c\/p\u003e\n\u003cul data-start=\"2033\" data-end=\"2323\"\u003e\n\u003cli data-section-id=\"12pbc4d\" data-start=\"2033\" data-end=\"2098\"\u003e\n\u003cstrong data-start=\"2035\" data-end=\"2052\"\u003e38.1mm (1.5\")\u003c\/strong\u003e – Ideal for high-detail engraving and marking\u003c\/li\u003e\n\u003cli data-section-id=\"1mbdhhl\" data-start=\"2099\" data-end=\"2172\"\u003e\n\u003cstrong data-start=\"2101\" data-end=\"2118\"\u003e50.8mm (2.0\")\u003c\/strong\u003e – Excellent for general-purpose cutting and engraving\u003c\/li\u003e\n\u003cli data-section-id=\"1jup2i0\" data-start=\"2173\" data-end=\"2247\"\u003e\n\u003cstrong data-start=\"2175\" data-end=\"2192\"\u003e63.5mm (2.5\")\u003c\/strong\u003e – Balanced performance for precision and cutting depth\u003c\/li\u003e\n\u003cli data-section-id=\"1iohl5q\" data-start=\"2248\" data-end=\"2323\"\u003e\n\u003cstrong data-start=\"2250\" data-end=\"2268\"\u003e101.6mm (4.0\")\u003c\/strong\u003e – Designed for deep cutting and specialty applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2325\" data-end=\"2328\"\u003e\n\u003ch4 data-section-id=\"193hxb4\" data-start=\"2330\" data-end=\"2359\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2333\" data-end=\"2359\"\u003eProduct Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul data-start=\"2361\" data-end=\"2787\"\u003e\n\u003cli data-section-id=\"1f8njgi\" data-start=\"2361\" data-end=\"2398\"\u003e\n\u003cstrong data-start=\"2363\" data-end=\"2372\"\u003eType:\u003c\/strong\u003e Meniscus Laser Focus Lens\u003c\/li\u003e\n\u003cli data-section-id=\"1co40ls\" data-start=\"2399\" data-end=\"2453\"\u003e\n\u003cstrong data-start=\"2401\" data-end=\"2414\"\u003eMaterial:\u003c\/strong\u003e Premium ZnSe Laser Grade (Made in USA)\u003c\/li\u003e\n\u003cli data-section-id=\"lq0ctm\" data-start=\"2454\" data-end=\"2478\"\u003e\n\u003cstrong data-start=\"2456\" data-end=\"2471\"\u003eWavelength:\u003c\/strong\u003e 10.6µm\u003c\/li\u003e\n\u003cli data-section-id=\"fnu5qq\" data-start=\"2479\" data-end=\"2532\"\u003e\n\u003cstrong data-start=\"2481\" data-end=\"2493\"\u003eCoating:\u003c\/strong\u003e Anti-Reflective (AR) Coated Both Sides\u003c\/li\u003e\n\u003cli data-section-id=\"19np07\" data-start=\"2533\" data-end=\"2553\"\u003e\n\u003cstrong data-start=\"2535\" data-end=\"2548\"\u003eDiameter:\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003cli data-section-id=\"pnqs2j\" data-start=\"2554\" data-end=\"2609\"\u003e\n\u003cstrong data-start=\"2556\" data-end=\"2575\"\u003ePower Handling:\u003c\/strong\u003e Recommended for Lasers Under 200W\u003c\/li\u003e\n\u003cli data-section-id=\"4br01l\" data-start=\"2610\" data-end=\"2648\"\u003e\n\u003cstrong data-start=\"2612\" data-end=\"2635\"\u003eDiameter Tolerance:\u003c\/strong\u003e +0 \/ -0.13mm\u003c\/li\u003e\n\u003cli data-section-id=\"1c9p3s\" data-start=\"2649\" data-end=\"2689\"\u003e\n\u003cstrong data-start=\"2651\" data-end=\"2682\"\u003eCenter Thickness Tolerance:\u003c\/strong\u003e ±0.1mm\u003c\/li\u003e\n\u003cli data-section-id=\"1bl0trc\" data-start=\"2690\" data-end=\"2723\"\u003e\n\u003cstrong data-start=\"2692\" data-end=\"2719\"\u003eFocal Length Tolerance:\u003c\/strong\u003e \u0026lt;1%\u003c\/li\u003e\n\u003cli data-section-id=\"1dfxwd8\" data-start=\"2724\" data-end=\"2762\"\u003e\n\u003cstrong data-start=\"2726\" data-end=\"2745\"\u003eClear Aperture:\u003c\/strong\u003e ≥90% of Diameter\u003c\/li\u003e\n\u003cli data-section-id=\"s4oeow\" data-start=\"2763\" data-end=\"2787\"\u003e\n\u003cstrong data-start=\"2765\" data-end=\"2781\"\u003eScratch\/Dig:\u003c\/strong\u003e 40-20\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2789\" data-end=\"2792\"\u003e\n\u003ch4 data-section-id=\"xtbc71\" data-start=\"2794\" data-end=\"2829\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2797\" data-end=\"2829\"\u003eImportant Compatibility Note\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-start=\"2831\" data-end=\"3004\"\u003eIf your unfocused laser beam diameter is \u003cstrong data-start=\"2872\" data-end=\"2890\"\u003e10mm or larger\u003c\/strong\u003e, this lens may not be the ideal choice for your setup. Please verify your machine specifications before ordering.\u003c\/p\u003e\n\u003chr data-start=\"3006\" data-end=\"3009\"\u003e\n\u003ch4 data-section-id=\"m1cgkr\" data-start=\"3011\" data-end=\"3047\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3014\" data-end=\"3047\"\u003ePopular Machine Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-start=\"3049\" data-end=\"3125\"\u003eCompatible with many popular CO₂ laser systems using 20mm optics, including:\u003c\/p\u003e\n\u003ch5 data-section-id=\"1bc4duf\" data-start=\"3127\" data-end=\"3143\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3131\" data-end=\"3143\"\u003eAP Lazer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul data-start=\"3144\" data-end=\"3171\"\u003e\n\u003cli data-section-id=\"1j2buit\" data-start=\"3144\" data-end=\"3150\"\u003e2816\u003c\/li\u003e\n\u003cli data-section-id=\"1j2bb4d\" data-start=\"3151\" data-end=\"3157\"\u003e3024\u003c\/li\u003e\n\u003cli data-section-id=\"1j2dkru\" data-start=\"3158\" data-end=\"3164\"\u003e4024\u003c\/li\u003e\n\u003cli data-section-id=\"1j2de0x\" data-start=\"3165\" data-end=\"3171\"\u003e4836\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-section-id=\"1512hfn\" data-start=\"3173\" data-end=\"3185\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3177\" data-end=\"3185\"\u003eAEON\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul data-start=\"3186\" data-end=\"3199\"\u003e\n\u003cli data-section-id=\"kh4jet\" data-start=\"3186\" data-end=\"3199\"\u003eNova Series\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-section-id=\"17clrcj\" data-start=\"3201\" data-end=\"3218\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3205\" data-end=\"3218\"\u003eBescutter\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul data-start=\"3219\" data-end=\"3264\"\u003e\n\u003cli data-section-id=\"gxtsri\" data-start=\"3219\" data-end=\"3231\"\u003eRGL-M-5236\u003c\/li\u003e\n\u003cli data-section-id=\"rynywb\" data-start=\"3232\" data-end=\"3244\"\u003eStar5 5236\u003c\/li\u003e\n\u003cli data-section-id=\"ezc33e\" data-start=\"3245\" data-end=\"3264\"\u003eDual Head Systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-section-id=\"1jf223m\" data-start=\"3266\" data-end=\"3284\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3270\" data-end=\"3284\"\u003eBoss Laser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul data-start=\"3285\" data-end=\"3332\"\u003e\n\u003cli data-section-id=\"1tkandp\" data-start=\"3285\" data-end=\"3294\"\u003eLS-1420\u003c\/li\u003e\n\u003cli data-section-id=\"1j29wq4\" data-start=\"3295\" data-end=\"3301\"\u003e1630\u003c\/li\u003e\n\u003cli data-section-id=\"1j2c4iy\" data-start=\"3302\" data-end=\"3308\"\u003e2440\u003c\/li\u003e\n\u003cli data-section-id=\"t45lju\" data-start=\"3309\" data-end=\"3325\"\u003e3665 Dual Head\u003c\/li\u003e\n\u003cli data-section-id=\"1j2dklo\" data-start=\"3326\" data-end=\"3332\"\u003e4055\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-section-id=\"1vjyznr\" data-start=\"3334\" data-end=\"3361\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3338\" data-end=\"3361\"\u003eFull Spectrum Laser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul data-start=\"3362\" data-end=\"3383\"\u003e\n\u003cli data-section-id=\"1nd4hxt\" data-start=\"3362\" data-end=\"3371\"\u003e3D Muse\u003c\/li\u003e\n\u003cli data-section-id=\"1o4p3x\" data-start=\"3372\" data-end=\"3377\"\u003eP36\u003c\/li\u003e\n\u003cli data-section-id=\"1o4p6c\" data-start=\"3378\" data-end=\"3383\"\u003eP48\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-section-id=\"16npfrq\" data-start=\"3385\" data-end=\"3399\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3389\" data-end=\"3399\"\u003eLaguna\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul data-start=\"3400\" data-end=\"3443\"\u003e\n\u003cli data-section-id=\"yhmtvy\" data-start=\"3400\" data-end=\"3404\"\u003eEC\u003c\/li\u003e\n\u003cli data-section-id=\"1c2u7br\" data-start=\"3405\" data-end=\"3414\"\u003eEX 2440\u003c\/li\u003e\n\u003cli data-section-id=\"yhmtp9\" data-start=\"3415\" data-end=\"3419\"\u003eMX\u003c\/li\u003e\n\u003cli data-section-id=\"3o434l\" data-start=\"3420\" data-end=\"3428\"\u003ePL1220\u003c\/li\u003e\n\u003cli data-section-id=\"10zx4er\" data-start=\"3429\" data-end=\"3443\"\u003eSmartShop EC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-section-id=\"tfvdku\" data-start=\"3445\" data-end=\"3459\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3449\" data-end=\"3459\"\u003eOMTech\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul data-start=\"3460\" data-end=\"3495\"\u003e\n\u003cli data-section-id=\"tipuno\" data-start=\"3460\" data-end=\"3471\"\u003eAF Series\u003c\/li\u003e\n\u003cli data-section-id=\"f8y3co\" data-start=\"3472\" data-end=\"3483\"\u003eMF Series\u003c\/li\u003e\n\u003cli data-section-id=\"12vhe27\" data-start=\"3484\" data-end=\"3495\"\u003eZF Series\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-section-id=\"13ov1e3\" data-start=\"3497\" data-end=\"3513\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3501\" data-end=\"3513\"\u003eOneLaser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul data-start=\"3514\" data-end=\"3532\"\u003e\n\u003cli data-section-id=\"t5avzf\" data-start=\"3514\" data-end=\"3524\"\u003eX Series\u003c\/li\u003e\n\u003cli data-section-id=\"16ot6ry\" data-start=\"3525\" data-end=\"3532\"\u003eHydra\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-section-id=\"1xbeobf\" data-start=\"3534\" data-end=\"3555\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3538\" data-end=\"3555\"\u003eThunder Laser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul data-start=\"3556\" data-end=\"3569\"\u003e\n\u003cli data-section-id=\"kh4jet\" data-start=\"3556\" data-end=\"3569\"\u003eNova Series\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-section-id=\"14b4dpt\" data-start=\"3571\" data-end=\"3607\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3575\" data-end=\"3607\"\u003eAdditional Compatible Brands\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp data-start=\"3608\" data-end=\"3699\"\u003eCamfive, HL Laser, GWEIKE, Leapion, MornTech, Rabbit Laser, Razor, Voccell Laser, and more.\u003c\/p\u003e\n\u003cp data-start=\"3701\" data-end=\"3771\"\u003e\u003cem data-start=\"3701\" data-end=\"3771\"\u003eCompatibility list is provided as a reference and is not exhaustive.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr data-start=\"3773\" data-end=\"3776\"\u003e\n\u003cp data-start=\"3778\" data-end=\"4066\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eNeed help understanding laser lens specifications like \u003cstrong data-start=\"3833\" data-end=\"3854\"\u003eFocal Length (FL)\u003c\/strong\u003e, \u003cstrong data-start=\"3856\" data-end=\"3874\"\u003eDiameter (Dia)\u003c\/strong\u003e, or \u003cstrong data-start=\"3879\" data-end=\"3902\"\u003eEdge Thickness (ET)\u003c\/strong\u003e? Our \u003cstrong data-start=\"3908\" data-end=\"3939\"\u003eChoosing the Right CO₂ Lens\u003c\/strong\u003e blog makes it easy to choose the right lens for your engraving and cutting applications.\u003c\/p\u003e\n\u003cp\u003e \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/americanphotonics.github.io\/product-finder.html\" target=\"_blank\"\u003e\u003cimg alt=\"product selector\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1723\/4335\/files\/productselectoricon_c7ce69a5-9021-4834-b763-049bf7c8ba75_160x160.jpg?v=1699887880\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"American Photonics","offers":[{"title":"38.1mm(1.5\")","offer_id":40728485855293,"sku":"ADPT-20-12.7-38.1","price":46.0,"currency_code":"USD","in_stock":true},{"title":"50.8mm(2.0\")","offer_id":40728485888061,"sku":"ADPT-20-12.7-50.8","price":46.0,"currency_code":"USD","in_stock":true},{"title":"63.5mm(2.5\")","offer_id":40728485920829,"sku":"ADPT-20-12.7-63.5","price":46.0,"currency_code":"USD","in_stock":true},{"title":"101.6mm(4.0\")","offer_id":40728485953597,"sku":"ADPT-20-12.7-101.6","price":46.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1723\/4335\/files\/ZnSe_Focus_Lens_34_19mm_for_C02_laser_10.6um._Direct_replacement_for_any_19mm_lens.png?v=1778601887","url":"https:\/\/shop.americanphotonics.com\/ko\/products\/20mm-znse-focus-lens-for-c02-laser-10-6um","provider":"American Photonics","version":"1.0","type":"link"}