[{"data":1,"prerenderedAt":189},["ShallowReactive",2],{"407f4158ec58a7f0671b435be35f07d2":3,"1bd860bf0577c93eb01877d74c3e9dda":7,"TopCategory":62,"CategoryTree111":163},{"code":4,"msg":5,"data":6},200,"success",{},{"code":4,"msg":5,"data":8},{"id":9,"parentId":10,"name":11,"sortNum":12,"smallImage":13,"smallImageAlt":13,"introduction":14,"meta":15,"parentResp":16,"picList":26,"templateList":38,"productList":43,"newsList":61},111,38,"VL Plan Fluor EPI Brightfield Long Working Distance Objective Lens",11,"https://source.venuslabtech.com/mall-prod/aac3bd54-ad90-433e-97c2-586ab94b53d2.png","\u003Cp style=\"text-align: start;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">\u003Cstrong>Widely used in the semiconductor field, automobile manufacturing, precision machinery, and other fields\u003C/strong>\u003C/span>\u003C/p>\u003Cul>\u003Cli style=\"text-align: start;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">Long working distance breaks through industry limits\u003C/span>\u003C/li>\u003Cli style=\"text-align: start;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">Optical revolution of flat-field semi-apochromatic\u003C/span>\u003C/li>\u003Cli style=\"text-align: start;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">Industrial-grade durability and compatibility\u003C/span>\u003C/li>\u003Cli style=\"text-align: start;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">Balancing the contradiction between resolution and working distance\u003C/span>\u003C/li>\u003Cli style=\"text-align: start;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">Targeted optimization of episcopic illumination\u003C/span>\u003C/li>\u003Cli style=\"text-align: start;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">Precise adaptation to industrial inspection scenarios\u003C/span>\u003C/li>\u003C/ul>\u003Cp style=\"text-align: start;\">\u003Cspan style=\"font-size: 13px;\">\u003Cbr>\u003C/span>\u003C/p>","[{\"name\":\"title\",\"label\":\"Title 标题\",\"content\":\"VL Plan Fluor EPI Brightfield Long Working Distance Objective Lens | VenusLab\"},{\"name\":\"keywords\",\"label\":\"Keywords 关键词\",\"content\":\"Plan Fluor EPI long working distance objective, EPI brightfield long WD lens, Long working distance microscope objective, Plan Fluor chromatic correction lens, EPI illumination long working distance lens, Scientific-grade brightfield long WD objective, Infinity-corrected EPI long WD lens, Flat-field (Plan) EPI brightfield long WD lens, Thick sample imaging objective, Material science long working distance lens.\"},{\"name\":\"description\",\"label\":\"Description 描述\",\"content\":\"VenusLab Plan Fluor EPI Long WD Lens: Plan Fluor correction + EPI illumination + long working distance—ideal for thick samples, material science, industrial inspection. Explore now!\"},{\"name\":\"og:title\",\"label\":\"og:title\",\"content\":\"VenusLab VL Plan Fluor EPI – Long WD Brightfield Objective Lens\"},{\"name\":\"og:type\",\"label\":\"og:type\",\"content\":\"website\"},{\"name\":\"og:description\",\"label\":\"og描述\",\"content\":\"Long working distance EPI brightfield objective with Plan Fluor correction—trusted for thick sample imaging, material analysis, and industrial QC.\"},{\"name\":\"og:image\",\"label\":\"og图片\",\"content\":\"https://source.venuslabtech.com/mall-prod/aac3bd54-ad90-433e-97c2-586ab94b53d2.png\"},{\"name\":\"og:url\",\"label\":\"og url\",\"content\":\"https://www.venuslabtech.com/product_center/vl-plan-fluor-epi-brightfield-long-working-distance-objective-lens\"},{\"name\":\"twitter:title\",\"label\":\"twitter:title\",\"content\":\"VenusLab VL Plan Fluor EPI – Long WD Brightfield Objective Lens\"},{\"name\":\"twitter:description\",\"label\":\"twitter描述\",\"content\":\"Long working distance EPI brightfield objective with Plan Fluor correction—trusted for thick sample imaging, material analysis, and industrial QC.\"},{\"name\":\"twitter:image\",\"label\":\"twitter图片\",\"content\":\"https://source.venuslabtech.com/mall-prod/aac3bd54-ad90-433e-97c2-586ab94b53d2.png\"},{\"name\":\"twitter:card\",\"label\":\"twitter:card\",\"content\":\"summary_large_image\"},{\"name\":\"twitter:site\",\"label\":\"twitter:site\",\"content\":\"venuslabtech@gmail.com\"}]",[17,21,24],{"id":18,"parentId":19,"name":20},5,0,"Optics & Fiber",{"id":22,"parentId":18,"name":23},34,"Imaging Optics",{"id":10,"parentId":22,"name":25},"Objectives",[27,33],{"id":28,"categoryId":9,"url":29,"urlAlt":30,"sortNum":31,"markJson":32},62,"https://source.venuslabtech.com/mall-prod/27d70614-9d31-44ac-8d92-345a381912e5.jpg","Appearance dimension diagram",2,"",{"id":34,"categoryId":9,"url":35,"urlAlt":36,"sortNum":37,"markJson":32},343,"https://source.venuslabtech.com/mall-prod/24fdea5e-f129-4b5d-bedf-70c63f65595a.png","Front view",1,[39],{"id":40,"categoryId":9,"position":37,"templateType":37,"sortNum":37,"details":41,"title":42},46,"{\"editor\":\"\u003Ch2>\u003Cspan style=\\\"font-size: 22px; font-family: Arial;\\\">\u003Cstrong>Introduction:\u003C/strong>\u003C/span>\u003C/h2>\u003Cul>\u003Cli style=\\\"text-align: start;\\\">\u003Cspan style=\\\"font-size: 19px; font-family: Arial;\\\">45mm Infinite Conjugate Parfocal Industrial Objective Lens\u003C/span>\u003C/li>\u003Cli style=\\\"text-align: start;\\\">\u003Cspan style=\\\"font-size: 19px; font-family: Arial;\\\">Coaxial Illumination Bright Field, Flat Field Semi-Apochromatic\u003C/span>\u003C/li>\u003Cli style=\\\"text-align: start;\\\">\u003Cspan style=\\\"font-size: 19px; font-family: Arial;\\\">High Imaging Contrast + Long Working Distance\u003C/span>\u003C/li>\u003C/ul>\"}","Overview",[44,50,56],{"id":45,"parentId":9,"name":11,"smallImage":46,"description":47,"modelNumber":48,"introduction":49},10112,"https://source.venuslabtech.com/mall-prod/93503e02-1e22-4f0c-a695-76942029102e.png","Long working distance, flat-field semi-apochromatic.","VL Plan Fluor EPI 20X","\u003Cp>\u003Cspan style=\"font-size: 19px; font-family: Arial;\">It adopts a flat-field semi-apochromatic design to eliminate field curvature and red-blue light aberration, ensuring that the entire field of view (25mm range) is clear without color fringing. The 12mm ultra-long working distance allows direct observation of thick samples (such as metal blocks, welded parts with protrusions) or reserves operating space for probes/clamps.\u003Cbr>\u003C/span>\u003C/p>\u003Cp>\u003Cbr>\u003C/p>\u003Cp>\u003Cspan style=\"font-size: 19px; font-family: Arial;\">Application:\u003Cbr>Inspection of metal surface defects, chip packaging textures, etc. The 45mm parfocal lens change avoids re-focusing, improving production line efficiency.\u003C/span>\u003C/p>",{"id":51,"parentId":9,"name":11,"smallImage":52,"description":53,"modelNumber":54,"introduction":55},10113,"https://source.venuslabtech.com/mall-prod/2fe12e2d-0743-4bd6-bd33-88bb5edc8ed4.png","Long working distance, flat field semi-apochromatic.","VL Plan Fluor EPI 50X","\u003Cp>\u003Cspan style=\"font-size: 19px; font-family: Arial;\">It balances a long working distance with high resolution. A 10.4mm working distance reserves operational space, while a 0.55μm resolution enables submicron-level observation. The flat-field semi-apochromatic design ensures clear imaging across the entire field of view and accurate color reproduction.\u003Cbr>\u003C/span>\u003C/p>\u003Cp>\u003Cbr>\u003C/p>\u003Cp>\u003Cspan style=\"font-size: 19px; font-family: Arial;\">Applications include:\u003Cbr>Scenarios requiring \"operational space + precise observation\" such as metal grain statistics and inspection of cold solder joints in chip welding points.\u003C/span>\u003C/p>",{"id":57,"parentId":9,"name":11,"smallImage":58,"description":53,"modelNumber":59,"introduction":60},10114,"https://source.venuslabtech.com/mall-prod/a7f00c38-25bf-4a91-84aa-0bb91ebcd1ac.png","VL Plan Fluor EPI 100X","\u003Cp>\u003Cspan style=\"font-size: 19px; font-family: Arial;\">It maintains a long working distance even at high magnification (3.1mm, far exceeding that of conventional 100× objectives), balancing high resolution with operational safety; a numerical aperture (NA) of 0.8 enhances light-gathering capability, and combined with a flat-field semi-apochromatic design, it achieves high-definition, color-fringe-free imaging across the entire field of view.\u003Cbr>\u003C/span>\u003C/p>\u003Cp>\u003Cbr>\u003C/p>\u003Cp>\u003Cspan style=\"font-size: 19px; font-family: Arial;\">Applications include:\u003Cbr>Ultra-fine inspection of semiconductor nano-defects (such as pinholes in wafer oxide layers), micro-morphologies of ultra-precision materials (such as graphene), etc.\u003C/span>\u003C/p>",[],{"code":4,"msg":5,"data":63},[64,74,88,115,125,138,148],{"id":31,"parentId":19,"name":65,"sortNum":37,"smallImage":66,"smallImageAlt":66,"introduction":67,"children":68,"elect":19,"childrenFlag":37},"Light Sources","https://source.venuslabtech.com/mall-prod/0513a35b-c34f-4a0b-9a7d-d2e627c17713.png","\u003Cp>\u003Cspan style=\"font-size: 19px; font-family: Arial;\">At VenusLab, our Light Sources portfolio is designed to meet the diverse needs of modern research and industry. From multi-channel LED modules to high-stability laser engines, each solution delivers precision, stability, and adaptability for your specific applications. Whether for advanced imaging, optogenetics, or fiber-coupled systems, VenusLab light sources ensure consistent performance to drive your innovation forward.\u003C/span>\u003C/p>",[69],{"id":70,"parentId":31,"name":71,"sortNum":31,"smallImage":72,"smallImageAlt":72,"introduction":73,"elect":19,"childrenFlag":37},10,"Laser","https://source.venuslabtech.com/mall-prod/e90dbc77-1a1b-4c2f-b6ab-2b8aba78233c.png","\u003Cp>\u003Cbr>\u003C/p>",{"id":75,"parentId":19,"name":76,"sortNum":31,"smallImage":77,"smallImageAlt":77,"introduction":78,"children":79,"elect":19,"childrenFlag":37},3,"Detectors","https://source.venuslabtech.com/mall-prod/635fa0d9-5f9f-4575-8fbf-70d07d4a0fcf.png","\u003Cp>\u003Cspan style=\"font-size: 19px; font-family: Arial;\">The VenusLab detector product series is core-positioned around the concept of \"full-wavelength coverage, full-scenario adaptation, and high-precision output\". It builds a complete product matrix spanning from basic optical signal monitoring to single-photon-level ultra-high-precision detection through 6 major segmented categories. Covering the full wavelength range from ultraviolet (185nm) to short-wave infrared (2500nm), with response speeds ranging from 50ns down to 1ns and detection sensitivity spanning from 0.1nW to the single-photon level, this series can meet the differentiated optical signal detection needs across multiple fields such as scientific research, industry, biomedicine, and security. It provides stable and accurate core sensing components for various light-related applications.\u003C/span>\u003C/p>\u003Cp>\u003Cbr>\u003C/p>",[80,84],{"id":81,"parentId":75,"name":82,"sortNum":37,"smallImage":83,"smallImageAlt":83,"introduction":73,"elect":19,"childrenFlag":37},18,"Photodetector","https://source.venuslabtech.com/mall-prod/33fb14c5-d255-496c-b822-a0b81ee1a6ba.png",{"id":85,"parentId":75,"name":86,"sortNum":31,"smallImage":87,"smallImageAlt":87,"introduction":73,"elect":19,"childrenFlag":37},19,"Photodiodes","https://source.venuslabtech.com/mall-prod/15133790-2487-4ce3-bc77-372db6368e9b.png",{"id":89,"parentId":19,"name":90,"sortNum":75,"smallImage":91,"smallImageAlt":91,"introduction":92,"children":93,"elect":19,"childrenFlag":37},4,"Imaging","https://source.venuslabtech.com/mall-prod/02082dd8-575f-4441-8e63-81a43853d93c.png","\u003Cp style=\"line-height: 1.5;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">Centered on the core concept of \"Precise Capture + Ecological Synergy\", the VenusLab imaging product series covers the entire imaging wavelength range from ultraviolet (200nm) to short-wave infrared (2500nm). It builds a complete product matrix that spans from microscopic imaging to weak light signal visualization through 4 major segmented product categories.\u003C/span>\u003C/p>\u003Cp style=\"line-height: 1.5;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">The series can seamlessly interface with its detectors (such as single-photon counting modules and InGaAs detectors) and optical equipment, while boasting the combined characteristics of high resolution (up to 20 million pixels), high frame rate (up to 120fps), and low noise (dark current ≤ 1e-12 A). It meets the integrated needs of \"imaging - analysis - recording\" in fields including scientific research, industry, and biomedicine.\u003C/span>\u003C/p>",[94,98,102,106,111],{"id":95,"parentId":89,"name":96,"sortNum":37,"smallImage":97,"smallImageAlt":97,"introduction":73,"elect":19,"childrenFlag":37},24,"Scientific Cameras","https://source.venuslabtech.com/mall-prod/a53af2a6-2e06-4a58-936b-03479dda5ca0.png",{"id":99,"parentId":89,"name":100,"sortNum":31,"smallImage":101,"smallImageAlt":101,"introduction":73,"elect":19,"childrenFlag":37},25,"CMOS Cameras","https://source.venuslabtech.com/mall-prod/89dbbff2-301e-4dd6-a1a6-3196ea189a86.png",{"id":103,"parentId":89,"name":104,"sortNum":75,"smallImage":105,"smallImageAlt":105,"introduction":73,"elect":19,"childrenFlag":37},26,"CCD Cameras","https://source.venuslabtech.com/mall-prod/4362a829-8e2d-46a7-96c1-4c8ee45a6d15.png",{"id":107,"parentId":89,"name":108,"sortNum":109,"smallImage":110,"smallImageAlt":110,"introduction":73,"elect":19,"childrenFlag":37},32,"HDMI Cameras",9,"https://source.venuslabtech.com/mall-prod/4f44eb5c-8319-48da-b669-f3c4dbbcb13a.png",{"id":112,"parentId":89,"name":113,"sortNum":70,"smallImage":114,"smallImageAlt":114,"introduction":73,"elect":19,"childrenFlag":37},33,"Microscope Cameras","https://source.venuslabtech.com/mall-prod/d8690bc7-4af2-42a6-b02b-1cf084b52eb5.png",{"id":18,"parentId":19,"name":20,"sortNum":89,"smallImage":116,"smallImageAlt":116,"introduction":117,"children":118,"elect":19,"childrenFlag":37},"https://source.venuslabtech.com/mall-prod/af136da6-6853-426d-8a86-5adc2985f50b.png","\u003Cp style=\"line-height: 1.5;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">VenusLab's optical and fiber optic component products focus on high-precision optical signal regulation and transmission. They cover the entire chain from basic optical components to fiber optic integration solutions, and can form a synergistic effect with the company's own detectors, cameras and other products to build a complete optical system.\u003C/span>\u003C/p>",[119,121],{"id":22,"parentId":18,"name":23,"sortNum":37,"smallImage":120,"smallImageAlt":120,"introduction":73,"elect":19,"childrenFlag":37},"https://source.venuslabtech.com/mall-prod/ccadce05-879a-4005-bdf3-f0ea7c5c6ed7.png",{"id":122,"parentId":18,"name":123,"sortNum":75,"smallImage":124,"smallImageAlt":124,"introduction":73,"elect":19,"childrenFlag":37},36,"Fiber Parts","https://source.venuslabtech.com/mall-prod/1b80704b-5f12-40e1-b685-064d3055c56c.png",{"id":126,"parentId":19,"name":127,"sortNum":18,"smallImage":128,"smallImageAlt":128,"introduction":129,"children":130,"elect":19,"childrenFlag":37},6,"Opto-Mechanics","https://source.venuslabtech.com/mall-prod/3deebc29-027a-4603-b724-63f7e4fa6910.png","\u003Cp style=\"line-height: 1.5;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">The VenusLab optomechanical products serve as the core carrier for supporting the stable operation of optical experiments and industrial optical systems, with \"Full-Dimensional Regulation + High-Stability Support + Extreme Environment Adaptability\" as their core value.They cover the full range of needs, spanning from \"microscopic position alignment\" to \"macroscopic system construction\", and from \"normal temperature &amp; conventional scenarios\" to \"high-low temperature/vacuum extreme scenarios\".\u003C/span>\u003C/p>\u003Cp style=\"line-height: 1.5;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">These products can achieve seamless synergy with the company’s in-house detectors, imaging equipment, light sources, and other products, forming an integrated optical solution for \"optical signal generation - transmission - regulation - detection\". They provide precision mechanical control capabilities ranging from the micrometer to nanometer scale for the scientific research and industrial fields.\u003C/span>\u003C/p>",[131,134],{"id":28,"parentId":126,"name":132,"sortNum":18,"smallImage":133,"smallImageAlt":133,"introduction":73,"elect":19,"childrenFlag":37},"Optical Tables","https://source.venuslabtech.com/mall-prod/1016b0a2-f58c-42c5-8e30-2c2f70e9c4c4.png",{"id":135,"parentId":126,"name":136,"sortNum":126,"smallImage":137,"smallImageAlt":137,"introduction":73,"elect":19,"childrenFlag":37},63,"Temperature Stage","https://source.venuslabtech.com/mall-prod/9710b50f-7653-4488-a541-811f4d9b889c.png",{"id":139,"parentId":19,"name":140,"sortNum":126,"smallImage":141,"smallImageAlt":141,"introduction":142,"children":143,"elect":19,"childrenFlag":37},7,"Optical Test & Metrology","https://source.venuslabtech.com/mall-prod/88a64fab-6c58-416d-8630-cea8401c3ecb.png","\u003Cp style=\"line-height: 1.5;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">VenusLab's optical measurement and characterization products are centered on the core of \"Full Parameter Coverage, Extreme Environment Adaptability, and Intelligent Analysis\".They cover four major categories: spectral measurement, power and energy measurement, beam analysis, and infrared temperature measurement and imaging.Together with the company's in-house optomechanical products, these products form a closed-loop solution for \"Precision Regulation - Accurate Measurement\".\u003C/span>\u003C/p>",[144],{"id":145,"parentId":139,"name":146,"sortNum":37,"smallImage":147,"smallImageAlt":147,"introduction":73,"elect":19,"childrenFlag":37},69,"Spectral Measurement","https://source.venuslabtech.com/mall-prod/db8d8151-da44-436e-834a-28644b643784.png",{"id":149,"parentId":19,"name":150,"sortNum":139,"smallImage":151,"smallImageAlt":151,"introduction":152,"children":153,"elect":19,"childrenFlag":37},8,"Systems & Applications","https://source.venuslabtech.com/mall-prod/151843f8-ac03-4d88-a343-c0fbd70e75d1.png","\u003Cp style=\"line-height: 1.5;\">\u003Cspan style=\"font-size: 19px; font-family: Arial;\">Centered on \"Basic Observation - High-Resolution Analysis\", VenusLab offers brightfield/fluorescence microscopy for routine high-efficiency imaging, and confocal/Raman microscopy focusing on ultra-high resolution and molecular spectroscopy integration. Sharing modules and unified interfaces for flexible switching, they provide one-stop solutions for \"morphology observation - composition - structural analysis\" in biomedicine and materials science.\u003C/span>\u003C/p>",[154,159],{"id":155,"parentId":149,"name":156,"sortNum":31,"smallImage":157,"smallImageAlt":157,"introduction":158,"elect":19,"childrenFlag":37},85,"Confocal/Raman Microscopy","https://source.venuslabtech.com/mall-prod/dbf92573-535b-4fcb-b200-b90f31ae2d3b.png","\u003Cp style=\"line-height: 1.5;\">\u003Cspan style=\"color: rgba(0, 0, 0, 0.85); font-size: 19px; font-family: Arial;\">The Confocal/Raman Microscopy System is a product of in-depth integration of confocal microscopic imaging technology and Raman spectroscopy technology. It uses confocal technology to achieve high-resolution optical imaging and spatial localization of samples, and simultaneously acquires the molecular structure \"fingerprint information\" of designated microregions through Raman spectroscopy, ultimately realizing integrated detection of \"morphological observation - component identification - structural analysis\".\u003C/span>\u003C/p>",{"id":160,"parentId":149,"name":161,"sortNum":75,"smallImage":162,"smallImageAlt":162,"introduction":73,"childrenFlag":37},197,"Biological microscopy","https://source.venuslabtech.com/mall-prod/139800a9-89d5-4fa3-a2b7-4a3760edc22c.png",{"code":4,"msg":5,"data":164},[165],{"id":9,"parentId":10,"name":11,"sortNum":12,"smallImage":13,"smallImageAlt":13,"introduction":14,"meta":15,"childrenFlag":19,"productChildren":166,"productChildrenFlag":37,"parentResp":170,"categoryDetail":174},[167,168,169],{"id":45,"parentId":9,"name":11,"smallImage":46,"description":47,"modelNumber":48,"introduction":49,"sortNum":37},{"id":51,"parentId":9,"name":11,"smallImage":52,"description":53,"modelNumber":54,"introduction":55,"sortNum":31},{"id":57,"parentId":9,"name":11,"smallImage":58,"description":53,"modelNumber":59,"introduction":60,"sortNum":75},[171,172,173],{"id":18,"parentId":19,"name":20},{"id":22,"parentId":18,"name":23},{"id":10,"parentId":22,"name":25},{"id":9,"parentId":10,"name":11,"sortNum":12,"smallImage":13,"smallImageAlt":13,"introduction":14,"meta":15,"parentResp":175,"picList":179,"templateList":182,"productList":184,"newsList":188},[176,177,178],{"id":18,"parentId":19,"name":20},{"id":22,"parentId":18,"name":23},{"id":10,"parentId":22,"name":25},[180,181],{"id":34,"categoryId":9,"url":35,"urlAlt":36,"sortNum":37,"markJson":32},{"id":28,"categoryId":9,"url":29,"urlAlt":30,"sortNum":31,"markJson":32},[183],{"id":40,"categoryId":9,"position":37,"templateType":37,"sortNum":37,"details":41,"title":42},[185,186,187],{"id":45,"parentId":9,"name":11,"smallImage":46,"description":47,"modelNumber":48,"introduction":49},{"id":51,"parentId":9,"name":11,"smallImage":52,"description":53,"modelNumber":54,"introduction":55},{"id":57,"parentId":9,"name":11,"smallImage":58,"description":53,"modelNumber":59,"introduction":60},[],1764059279420]