{"product_id":"njc-4-manual-lensmeter-optical-lens-measuring-machine-for-eyeglasses-ophthalmic-use-20d-5d","title":"NJC-4 Manual Lensmeter ±20D Optical Lensometer Focimeter for Eyeglass Lens Measurement","description":"\u003ch2\u003eNJC-4 Manual Lensmeter\u003c\/h2\u003e\n\u003cp\u003eThe NJC-4 manual lensmeter is an optical lens measuring instrument, also called a lensometer or focimeter, for measuring the diopter values of spherical and cylindrical eyeglass lenses. It is designed for optical workshops, optical laboratories, eyewear production and retail optical-store lens checking.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures spherical and cylindrical lens diopters.\u003c\/li\u003e\n\u003cli\u003eWide diopter range from -20D to +20D.\u003c\/li\u003e\n\u003cli\u003eEyepiece focus adjustment: +\/-5D.\u003c\/li\u003e\n\u003cli\u003eMinimum measurement unit: 0.125D.\u003c\/li\u003e\n\u003cli\u003ePrism measurement range: 5△ with 1△ resolution.\u003c\/li\u003e\n\u003cli\u003eCylinder axis range: 0-180 degrees with 5-degree step size.\u003c\/li\u003e\n\u003cli\u003eSupports lens diameters up to 100 mm.\u003c\/li\u003e\n\u003cli\u003ePower supply: AC 220V\/110V and DC 3V.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eNJC-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eFMF-NJC-4-10329\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eManual lensmeter \/ lensometer \/ focimeter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiopter measurement range\u003c\/th\u003e\n\u003ctd\u003e-20D to +20D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEyepiece focus\u003c\/th\u003e\n\u003ctd\u003e+\/-5D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum measurement unit\u003c\/th\u003e\n\u003ctd\u003e0.125D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrism measurement\u003c\/th\u003e\n\u003ctd\u003e5△ range, 1△ resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCylinder axis\u003c\/th\u003e\n\u003ctd\u003e0-180 degrees, 5-degree step size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum lens diameter\u003c\/th\u003e\n\u003ctd\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower supply\u003c\/th\u003e\n\u003ctd\u003eAC 220V\/110V, DC 3V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackage contents\u003c\/th\u003e\n\u003ctd\u003eNJC-4 manual lensmeter, power adapter, English user manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe NJC-4 manual lensmeter is suitable for eyeglass lens diopter measurement.\u003c\/li\u003e\n\u003cli\u003eThe NJC-4 manual lensmeter is suitable for optical workshop and optical laboratory lens checking.\u003c\/li\u003e\n\u003cli\u003eThe NJC-4 manual lensmeter is suitable for eyewear production and retail optical-store inspection.\u003c\/li\u003e\n\u003cli\u003eThe NJC-4 manual lensmeter can be used as optometry practice equipment for measuring lens parameters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSelection Notes\u003c\/h3\u003e\n\u003cp\u003eBefore ordering the NJC-4 manual lensmeter, check the -20D to +20D diopter range, 100 mm maximum lens diameter, +\/-5D eyepiece focus, 5△ prism range, cylinder-axis step, AC 220V\/110V or DC 3V power supply, and manual optical reading workflow.\u003c\/p\u003e\n\u003cp\u003eThe NJC-4 manual lensmeter package contents are one NJC-4 manual lensmeter, one power adapter and one English user manual. Ordering reference SKU: FMF-NJC-4-10329.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003ch3\u003eWhat does the NJC-4 measure?\u003c\/h3\u003e\n\u003cp\u003eIt measures the diopter values of spherical and cylindrical eyeglass lenses.\u003c\/p\u003e\n\u003ch3\u003eWhat is the diopter range?\u003c\/h3\u003e\n\u003cp\u003eThe listed measurement range is -20D to +20D.\u003c\/p\u003e\n\u003ch3\u003eWhat lens diameter does it support?\u003c\/h3\u003e\n\u003cp\u003eThe listed maximum lens diameter is 100 mm.\u003c\/p\u003e\n\u003ch3\u003eWhat is included with the product?\u003c\/h3\u003e\n\u003cp\u003eThe package contents list one NJC-4 manual lensmeter, one power adapter and one English user manual.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":43370963927129,"sku":"FMF-NJC-4-10329","price":230.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/Sb533ae12e4ea4cda925d4bea40d30662X.webp?v=1780391108","url":"https:\/\/fmfpack.com\/pl\/products\/njc-4-manual-lensmeter-optical-lens-measuring-machine-for-eyeglasses-ophthalmic-use-20d-5d","provider":"FMF Supply","version":"1.0","type":"link"}