{"product_id":"ultrarayc-f-theta-lens-1064nm-focus-lens-laser-focal-length-63-420mm-scan-field-50-50-400-400-for-yag-fiber-laser-galvo-system","title":"Ultrarayc F-theta Lens 1064nm Focus Lens Laser Focal length 63-420mm Scan Field 50×50-400×400 for YAG Fiber Laser Galvo System","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eCloudray\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCertification\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eCE\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eF-theta Lens Application\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eFor YAG Fiber Laser Galvo System\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eF-theta Lens Focal Length\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e63 - 420mm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eF-theta Lens Mount\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eM85 x 1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eF-theta Lens Thread\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eM85*1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eF-theta Scan Angle\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e±28°\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFeature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eGalvo System\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFused Silica Material\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003erecommend for above 100W laser\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHign-concerned Chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eK9 Material\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003erecommend for under 100W laser\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaterial\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eHigh Purity Fused Silica \/ HQ Quartz\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eF-theta Scan Lens Thread M85*1 1064nm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eScan Field\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e50x50mm- 300x300mm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eShape\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSpherical\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eStructure\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSpherical\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eUse\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eLaser Marking Machine\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eWavelength\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1064nm Focus Lens Laser\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cdiv\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003cdiv\u003e\n\u003cdiv\u003eﾠ\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/H03c4abe3a7ea41d6ad4c2e165a858daf3.jpg\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_image\"\u003e\u003cimg width=\"944\" height=\"840\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sfc7daa93115144b0a81a0e1dc5c6595a7.jpg\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:14px;font-weight:400;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003eIn terms of f-thtea lens selection, if your fiber lasers is\u003cspan\u003eﾠ\u003c\/span\u003e\u003cstrong\u003e\u003cspan style=\"color:rgb(244, 78, 59)\"\u003eabove 100 watts\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e,\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003eﾠ\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan style=\"color:rgb(244, 78, 59)\"\u003equartz field mirrors must be used\u003c\/span\u003e\u003c\/strong\u003e, because K9 material field mirrors will produce thermal lens effects when they work for a long time.\u003c\/p\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_image\"\u003e\n\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/H21a5248c77d34eba83a068e82b04548co.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/H50ecd8963abd4c71a3b50e5ff249438f3.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf3863a7fcad74b6ba0c4bea9e1481968U.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/H6b2e449a82ad4047bfc985be4bb457c0R.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/H29ce1524cc1141a68c8af9d8a53ba581E.jpg\" slate-data-type=\"image\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center\" class=\"detailmodule_image\" align=\"center\"\u003e\n\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/H53ff62cf37134ea3ac67ed4bf402dbf9z.jpg\" slate-data-type=\"image\"\u003e\u003cspan style=\"color:rgb(211, 49, 21);font-size:22px\"\u003e\u003cstrong\u003eHow Can I Check If This F-theta Lens Would Be Suitable for My Marking Machine?\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_image\"\u003eFirst, you need to check your galvo head thread diameter. Our thread is M85, as shown in the picture below, and the installation diameter is 85mm.\u003c\/div\u003e\n\u003cdiv\u003eIf you measure your galvo head or f-theta lens and find it to be 79mm, you will need an\u003c\/div\u003e\n\u003cdiv\u003eadapter ring.\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf23d5b7b5a1e451dac56ce69462e09e2F.png\" slate-data-type=\"image\"\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eSecond, select a suitable size. The field size of the f-theta lens is related to the height of the column lift. For example, for a 300x300 scan field f-theta lens, the focal length is 420mm, and the back working length is 467mm. Then add the height of the f-theta lens and galvo head, and the column lift always needs to be 600mm. If your column lift is 500mm, then the 300x300 lens is not suitable for your machine.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align:center\" align=\"center\"\u003e\u003cspan style=\"color:rgb(211, 49, 21);font-size:22px\"\u003e\u003cstrong\u003eSize Suggestion of F-theta Lens Scan Field\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003eIf your marking machine power is between 20W to 30W, we recommend a field size of 50mm to 220mm. This is because the smaller the format, the clearer the engraving. The longer the focal length of the large-format field lens, the higher the loss of the laser in the air, the weaker the laser, and the unclear printing effect. \u003cstrong\u003eIf you want a 300x300mm field f-theta lens, it is best to have a machine power of over 50W. \u003c\/strong\u003eFor machines above 50W, we also recommend using quartz material lenses that have a longer usage life.\u003c\/div\u003e\n\u003cdiv\u003eIf you want to engrave rings and cups using a rotary attachment, we recommend using a 50x50mm or 70x70mm field f-theta lens.\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003ckse:widget data-widget-type=\"customText\" id=\"34744618\" type=\"custom\"\u003e\u003c\/kse:widget\u003e\u003c\/div\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"East Supplier Platform","offers":[{"title":"Fused Silica \/ CHINA \/ 250x250 F380","offer_id":47413729198303,"sku":"4000959711593-Fused Silica-CHINA-250x250 F380","price":459.5,"currency_code":"USD","in_stock":true},{"title":"Fused Silica \/ CHINA \/ 220x220 F330","offer_id":47413729231071,"sku":"4000959711593-Fused Silica-CHINA-220x220 F330","price":459.5,"currency_code":"USD","in_stock":true},{"title":"Fused Silica \/ CHINA \/ 300x300 F420","offer_id":47413729263839,"sku":"4000959711593-Fused Silica-CHINA-300x300 F420","price":459.5,"currency_code":"USD","in_stock":true},{"title":"Fused Silica \/ CHINA \/ 150x150 F210","offer_id":47413729329375,"sku":"4000959711593-Fused Silica-CHINA-150x150 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