Optical Bk7 Glass Diameter 3mm Ball Lens for Fiber and Optical Coupler

>> Product Description     Spherical Ball Lenses are commonly used for laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, and fiber-to-detector coupling. Larger spheres are easier to handle and ease the sensitivity of translational alignment. However, smaller spheres has the benefit of fitting into smaller packages.Ball lenses are highly polished spheres made of optically transparent homogeneous materials. Carefully controlled manufacturing process produces spheres withprecise diameters and unsurpassed surface quality.     We supply optical spherical ball lens,Half-ball (hemispherical) lenses are ideal for applications such as fiber communication, endoscopy, microscopy, optical pick-up devices, and laser measurement systems.>> SpecificationSpecification of optical 1.8mm ball lens we manufactured:Material: BK7, LaSFN9 glass,Ohara S-LAH71 glass or other optical glassSphericity: 0.001mmSurface Quality: 20-10Diameter: 1.8mm+/-0.005Range of diameterDia.0.7mm-Dia.400mmRange of curve radiusR1.5-R∞ etc.Tolerance of diameter+/-0.1, +/-0.01, +/-0.005 etc.Surface accuracyλ , 1/2λ , 1/4λ , 1/10λ  etc.Tolerance of Thickness+/-0.1, +/-0.05, +/-0.01 etc.                                                                                                                                                                      Centration+/-2′,+/-1′ etc.Aperture N5, 1 etc.Irregularity ΔN2, 1, 0.5, 0.2 etc.Surface quality60/40, 40/20, 20/10, 10/5 etc.>> Company Introduction>> Related Products     VY Optics could also manufacture and design other optical elements, including achromatic lens, dome lens, filter, prism, ball lens, cylindrical lens, optical mirrors, spherical lens and rod lens, we can fabricate high-precision lens as per your requested.>> FAQQ: Do you provide samples? Is it free or charged? ·  We'd like to supply samples for free if we have it in stock, but we don't pay freight.Q: How long is your delivery time? ·  Regarding inventory, it is 3 working days; ·  For customized one, it's about 15-25 working days, depended on exact quantity and order date.Q: Is it possible to customize special lens? ·  Yes, to customize special optical element and coating are available here.Q: How to pay? ·  T/T, Alibaba online assurance payment, MoneyGram, West Union, Paypal and so on.Q: How to ensure the safety of payment? ·  VY Optics is a reliable supplier not only audited on Alibaba, but also on Made-in-China, reputation and quality is life of our company, and we support Alibaba Trade Assurance.Q: How do you ship goods? · Low value sample: EUB, E Express of China Post, which is cheap; · Light weight parcel: DHL, FedEx, TNT, UPS, EMS, SF Express, China Post; · Heavy cargo: by air or by sea, ship on pallet.Our company enjoy a considerable discount owing to long-term cooperation with courier company.Optical Bk7 Glass Diameter 3mm Ball Lens for Fiber and Optical Coupler/* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1