K9 Glass Lens Convex Double Optical 100mm Focal Length Magnifying for Physical Optics experiment

【K9 OPTICAL GLASS】The convex lens is made of high-quality K9 optical glass. The highly polished double-convex lens is transparent,the double-convex lens has excellent optical performance, 100% brand new and high-quality 【ANTI-REFLECTION FILM】The magnifying glass lens is coated with anti-reflection film on both sides, the lens diameter is 30mm/1.2 inches, the focal length is 100mm/3.9in, the center thickness is 5mm 【FOR PHYSICAL OPTICS EXPERIMENTAL】Optical glass convex lens can be used for physical optics experimental lens, made of high-quality optical processing glass, highly polished, with edging 【FOR DIY MAGNIFIERS】This optical real lens is very suitable for physics classroom presentations on optics and light refraction,the K9 glass convex lens has a magnification of 2.5 times and is used for diy magnifiers 【QUALITY AFTER-SALES SERVICE】We are devoted to providing good convex lens and good service for every customer. If you have any questions,please don't hesitate to contact us for a solution