{"product_id":"12mm-znse-focal-focus-lens-by-american-photonics-for-up-to-200w-co2-laser-engraver-cutter","title":"12mm ZnSe Focal Focus Lens by American Photonics for Up To 200W CO2 Laser Engraver Cutter","description":"\u003cp\u003e\u003cstrong\u003e\u003cb data-mce-fragment=\"1\"\u003eCompatible Machines: DF0812\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eAdvanced Specifications:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003eAnti-reflective coated lens for \u0026lt;200W.\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003eType: Meniscus Laser Focal Lens\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003eMaterial: ZnSe Laser Grade (made in the USA)\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003eCoating: 10.6um (AR Both Side)\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003eDiameter Tolerance: +0\/-0.13mm\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003eCenter Thickness Tolerance: ± 0.1mm\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003eFocal Length Tolerance: \u0026lt; 1%\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003eClear Aperture: \u0026gt;= 90% Diameter\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003eScratch\/Dig: 40-20\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCutting Edge Features:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eOMTECH TESTED: Each American Photonics focal lens is tested on OMTech machines and approved by our laser specialists.\u003c\/li\u003e \u003cli\u003eQUALITY ZINC SELENIDE: Manufactured with premium zinc selenium via chemical vapor deposition for superior light transmission and heat tolerance.\u003c\/li\u003e \u003cli\u003eEXACTING LENS DIMENSIONS: Each lens is engineered and built with only a 0.003mm margin\u003cspan\u003e \u003c\/span\u003efor error to ensure finer laser focus on high-resolution engravings and enable sharper cutting abilities.\u003c\/li\u003e \u003cli\u003eULTRA-PURE MANUFACTURING: American Photonics utilizes an ultra-clean production room to ensure every focal lens is free from all impurities, reducing heat damage and ensuring extremely consistent laser beam transmission.\u003c\/li\u003e \u003cli\u003eHANDMADE IN THE USA: Each American Photonics focal lens is cored, polished, edged, coated, and packaged by hand with expert precision in each step.\u003c\/li\u003e \u003cli\u003eEXTREME HEAT TOLERANCE: Crafted to resist heat damage, cracking, and staining. A melting point of 2777°F (1525°C) easily withstands the thermal demands of CO2 laser applications.\u003c\/li\u003e \u003cli\u003eSUPERIOR LIGHT TRANSMITTANCE: Both sides are carefully coated with a strongly anti-reflective finish optimized for infrared light at a wavelength of 10.6 microns.\u003c\/li\u003e \u003cli\u003eLASTING DURABILITY: Our laser engraver focus lenses' double-sided coating process ensures outstanding scratch resistance for longer service life.\u003c\/li\u003e \u003cli\u003eWIDE COMPATIBILITY: This laser focus lens is designed to work with all CO2 laser engravers below 200W. Please check the focal lens diameter in your machine’s manual before purchasing.\u003c\/li\u003e \u003c\/ul\u003e \u003cul\u003e\u003c\/ul\u003e \u003cp\u003e\u003cb\u003eSummary:\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eAs you engrave, debris such as smoke and dust land on your focal lens, building up a layer of residue over time that absorbs laser beam power and can stain the lens permanently. Eventually, this lost power will affect your machine’s precision and throw off your laser settings. To keep your device running at its full potential, we recommend inspecting and cleaning the optics system once a week and replacing the mirrors or focal lens as soon they get damaged.\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHow to Select the Proper Focal Length:\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eA lens with a shorter focal length (1.5\"\u003cspan style=\"font-weight: 400;\" data-mce-style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e–2.5\")\u003c\/span\u003e  has a smaller focal point to provide sharper details for high-resolution images. A longer focal length (usually up to 4\") has a larger focal point and extended depth of focus (or focus tolerance) which is better suited for cutting applications. Also, keep in mind that using longer focal lengths subtract from your workbed’s Z-depth.\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAmerican Photonics provides a 30-Day 100% Guarantee\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003e\u003c\/h3\u003e","brand":"OMTech","offers":[{"title":"1.5\" (38.1mm)","offer_id":49288674541722,"sku":"LEL-A012-15","price":13.99,"currency_code":"GBP","in_stock":true},{"title":"2\" (50.8mm)","offer_id":49288674574490,"sku":"LEL-A012-20","price":27.28,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/coretarps.co.uk\/products\/12mm-znse-focal-focus-lens-by-american-photonics-for-up-to-200w-co2-laser-engraver-cutter","provider":"My Store","version":"1.0","type":"link"}