{"product_id":"meticulab-caf2-biconcave-lens","title":"METICULAB UV-Grade CaF₂ Biconcave Meniscus Lens","description":"\u003cdiv style=\"font-family: 'Helvetica Neue', Arial, sans-serif; max-width: 860px; margin: 0 auto; padding: 10px 0;\"\u003e\n\n  \u003c!-- ==================== 标题 ==================== --\u003e\n  \u003ch2 style=\"font-size: 24px; font-weight: 300; color: #1a1a1a; border-left: 4px solid #0b1a33; padding-left: 15px; margin-top: 0;\"\u003e\n    METICULAB UV-Grade Calcium Fluoride (CaF₂) Biconcave Lens – Precision Optics for DUV Lithography, Laser Systems \u0026amp; Spectroscopy\n  \u003c\/h2\u003e\n\n  \u003c!-- ==================== 简介 ==================== --\u003e\n  \u003cp style=\"font-size: 16px; line-height: 1.7; color: #333; margin: 20px 0;\"\u003e\n    The \u003cstrong\u003eMETICULAB™ UV-Grade Calcium Fluoride (CaF₂) Biconcave Lens\u003c\/strong\u003e is precision-engineered for demanding deep-ultraviolet (DUV) to mid-infrared (MIR) optical applications. Manufactured from high-purity single-crystal CaF₂, it delivers excellent transmission from \u003cstrong\u003e190nm to 7μm\u003c\/strong\u003e, solving the severe absorption limitations of fused silica in extreme UV wavelengths. Available in custom diameters from \u003cstrong\u003eΦ8mm to Φ100mm\u003c\/strong\u003e, with surface figure down to \u003cstrong\u003ePV ≤30nm and Sa ≤0.2nm\u003c\/strong\u003e. Every shipment includes full interferometer and AFM inspection reports. Ideal for DUV lithography, semiconductor inspection, high-power laser systems, and analytical instruments.\n  \u003c\/p\u003e\n\n  \u003c!-- ==================== 图片占位 ==================== --\u003e\n  \u003cp style=\"font-size: 16px; line-height: 1.7; color: #333; margin: 20px 0;\"\u003e\n    \u003cimg alt=\"METICULAB UV-Grade CaF₂ Biconcave Lens Overview\" style=\"max-width: 100%;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/xxxx\/xxxx\/files\/CaF2_Lens_01.png?v=1234567890\"\u003e\n    \u003cimg alt=\"METICULAB CaF₂ Lens Surface Quality Zygo Interferometer Test\" style=\"max-width: 100%;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/xxxx\/xxxx\/files\/CaF2_Lens_02.png?v=1234567890\"\u003e\n  \u003c\/p\u003e\n\n  \u003c!-- ==================== 技术参数 ==================== --\u003e\n  \u003ch3 style=\"font-size: 18px; font-weight: 600; color: #1a1a1a; margin: 30px 0 12px 0; border-bottom: 2px solid #eee; padding-bottom: 8px;\"\u003e\n    Technical Specifications\n  \u003c\/h3\u003e\n\n  \u003ctable style=\"width: 100%; border-collapse: collapse; background: #f9fafb; border: 1px solid #e2e8f0; font-size: 15px;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; width: 35%; background: #f1f5f9;\"\u003eBrand\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #0b1a33;\"\u003eMETICULAB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eProduct Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px;\"\u003eUV-Grade CaF₂ Biconcave Lens\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eMaterial\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #0b1a33;\"\u003eUV-Grade Calcium Fluoride (CaF₂) Single Crystal\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eTransmission Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #0b1a33;\"\u003e190nm – 7μm (Deep-UV to Mid-IR)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eSurface Accuracy (PV)\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #0b1a33;\"\u003e≤30nm @632.8nm (Typical: 14.8nm)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eSurface Accuracy (RMS)\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #0b1a33;\"\u003e≤3nm @632.8nm (Typical: 1.7nm)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eSurface Roughness (Sa)\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #0b1a33;\"\u003e≤0.2nm (AFM Verified)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eDiameter Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px;\"\u003eΦ8 – Φ100mm (Tolerance: ±0.01mm)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eD\/R Ratio\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #0b1a33;\"\u003e＜1.3 (Supports Thin-Wall Meniscus)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eCentration Error\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px;\"\u003e＜15 arcsec\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eSurface Quality\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px;\"\u003e40\/20 Scratch\/Dig (US MIL)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eCoating\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px;\"\u003eUncoated \/ AR Coating (DUV\/VIS\/IR) Customizable\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eQuality System\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px;\"\u003eISO 9001 Certified, Cleanroom Manufactured\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eInspection Reports\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #0b1a33;\"\u003eZygo Interferometer + AFM + Centration Test\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- ==================== 产品型号 ==================== --\u003e\n  \u003ch3 style=\"font-size: 18px; font-weight: 600; color: #1a1a1a; margin: 30px 0 12px 0; border-bottom: 2px solid #eee; padding-bottom: 8px;\"\u003e\n    Available Models \u0026amp; Custom Options\n  \u003c\/h3\u003e\n\n  \u003ctable style=\"width: 100%; border-collapse: collapse; background: #f9fafb; border: 1px solid #e2e8f0; font-size: 14px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background: #0b1a33; color: #ffffff;\"\u003e\n        \u003cth style=\"padding: 10px 12px; text-align: center; border-bottom: 1px solid #e2e8f0; font-weight: 600;\"\u003eModel\u003c\/th\u003e\n        \u003cth style=\"padding: 10px 12px; text-align: center; border-bottom: 1px solid #e2e8f0; font-weight: 600;\"\u003eType\u003c\/th\u003e\n        \u003cth style=\"padding: 10px 12px; text-align: center; border-bottom: 1px solid #e2e8f0; font-weight: 600;\"\u003eDiameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px 12px; text-align: center; border-bottom: 1px solid #e2e8f0; font-weight: 600;\"\u003eCoating\u003c\/th\u003e\n        \u003cth style=\"padding: 10px 12px; text-align: center; border-bottom: 1px solid #e2e8f0; font-weight: 600;\"\u003eSample\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0; background: #ffffff;\"\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center; font-weight: 600; color: #0b1a33;\"\u003eMET-CAF2-025\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eBiconcave\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eΦ25.4mm\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eUncoated\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003e1 pc available\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0; background: #f8fafc;\"\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center; font-weight: 600; color: #0b1a33;\"\u003eMET-CAF2-050\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eBiconcave\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eΦ50.8mm\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eUncoated\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003e1 pc available\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0; background: #ffffff;\"\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center; font-weight: 600; color: #0b1a33;\"\u003eMET-CAF2-MEN\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eMeniscus\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eCustom (8-100mm)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eAR Coating Optional\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eCAD Drawing Required\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background: #f8fafc;\"\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center; font-weight: 600; color: #0b1a33;\"\u003eMET-CAF2-CUS\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eCustom Geometry\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eOEM\/ODM\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eDUV\/VIS\/IR AR\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px 12px; text-align: center;\"\u003eSubmit Drawing\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003cp style=\"font-size: 12px; color: #7a8fa3; margin-top: 8px;\"\u003e\n    Note: OEM\/ODM branding, custom geometries, and AR coatings (DUV\/VIS\/IR) available upon request. Full inspection reports included with every shipment.\n  \u003c\/p\u003e\n\n  \u003c!-- ==================== 核心优势 ==================== --\u003e\n  \u003ch3 style=\"font-size: 18px; font-weight: 600; color: #1a1a1a; margin: 30px 0 12px 0; border-bottom: 2px solid #eee; padding-bottom: 8px;\"\u003e\n    Key Advantages\n  \u003c\/h3\u003e\n\n  \u003cul style=\"font-size: 15px; line-height: 1.8; color: #333; padding-left: 20px;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDeep-UV to Mid-IR Transmission:\u003c\/strong\u003e Excellent transmission from 190nm to 7μm – solves the absorption limitations of fused silica in extreme UV wavelengths.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSub-Nanometer Surface Quality:\u003c\/strong\u003e PV ≤30nm, RMS ≤3nm, Sa ≤0.2nm. Typical measured results: PV 14.8nm, RMS 1.7nm by Zygo interferometer.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProven Measured Performance:\u003c\/strong\u003e Sa 0.15-0.47nm verified by AFM – every shipment backed by real inspection data.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLow Dispersion \u0026amp; High Uniformity:\u003c\/strong\u003e Ensures beam transmission accuracy, prevents spectral shift and imaging distortion.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHigh Laser Damage Threshold:\u003c\/strong\u003e Suits high-power laser scenarios, extending equipment service life in demanding applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWide Size Range \u0026amp; Tight Tolerances:\u003c\/strong\u003e Diameter 8-100mm with ±0.01mm tolerance, center thickness ±0.02mm, centration ＜15 arcsec.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFull Documentation:\u003c\/strong\u003e 100% dimensional inspection, Zygo interferometer report, AFM roughness report, material certificate, and spectral curve included.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- ==================== 应用领域 ==================== --\u003e\n  \u003ch3 style=\"font-size: 18px; font-weight: 600; color: #1a1a1a; margin: 30px 0 12px 0; border-bottom: 2px solid #eee; padding-bottom: 8px;\"\u003e\n    Applications\n  \u003c\/h3\u003e\n\n  \u003cp style=\"font-size: 15px; color: #555; line-height: 1.8;\"\u003e\n    DUV Lithography · Semiconductor Wafer Inspection · High-Power Laser Systems · Spectroscopy \u0026amp; Analytical Instruments · Metrology \u0026amp; Precision Measurement · Research Laboratories · Optical System Integration\n  \u003c\/p\u003e\n\n  \u003c!-- ==================== 底部品牌信息（METICULAB官方联系方式） ==================== --\u003e\n  \u003cdiv style=\"background: #0b1a33; color: #ffffff; padding: 22px 28px; border-radius: 12px; margin-top: 30px; text-align: center;\"\u003e\n    \u003cp style=\"font-weight: bold; color: #f5d98f; margin-bottom: 5px; font-size: 16px;\"\u003e\n      METICULAB™ — Precision Optical Solutions\n    \u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\n      📧 \u003cstrong\u003echoikyuc@gmail.com\u003c\/strong\u003e  |  📞 \u003cstrong\u003e+82-10-3988-4813\u003c\/strong\u003e  |  🌐 \u003cstrong\u003ewww.meticulab.net\u003c\/strong\u003e\n    \u003c\/p\u003e\n    \u003cdiv style=\"font-size: 13px; color: #b8ccdd;\"\u003e\n      WhatsApp \u0026amp; KakaoTalk Available\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ==================== 底部免责声明 ==================== --\u003e\n  \u003cp style=\"font-size: 12px; color: #7a8fa3; border-top: 1px solid #edf2f7; padding-top: 16px; margin-top: 18px; text-align: center; font-style: italic;\"\u003e\n    METICULAB™ is a trusted brand for laboratory consumables and precision optical components. All products are manufactured under controlled quality systems and monitored by ISO 9001 certified quality management processes. Specifications are typical values — please contact us for custom requirements.\n  \u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"METICULAB","offers":[{"title":"Default Title","offer_id":51006710120700,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0791\/7695\/8204\/files\/01.png?v=1787532893","url":"https:\/\/meticulab.myshopify.com\/products\/meticulab-caf2-biconcave-lens","provider":"METICULAB","version":"1.0","type":"link"}