28mm Hemisphere Lens

28mm Ball Lens Are in Stock, Quick Delivery for you! Ball lenses are excellent for fibre coupling as they have very low spherical aberration, so focus and collimate light accurately. ball lenses are extremely hard and durable. Ball lenses are used for focusing light into small fibres, and for use as emitters and detectors    Material: bk7 sapphire fused silica znse caf2 ruby Diameter:28mm Surface quality:10/5 scratch/dig Flatness;1/2 lambda or better Tolerance;+/-0.002mm     About Changchun Sunday Optoelectronics Co.,ltd Changchun Sunday Optoelectronics Co., Ltd. is a high technology enterprise producing optical lenses, prisms, windows, filters, mirrors and coatings. Optical glass, crystal, sapphire, fused silica, znse, caf2, gel materials are on request, with  high-tech testing devices, such as ZYGO interferometer, NIKON 6D, Nikon ruler and collimator set,every piece of optics will be tested. Sunday has established business relationships with many customers in the world. Alsowe make designs and development, pursuing details and service. welcome your inquiry and sample order!         Why Sunday?   1.Sunday design,manufacture,testing together.   2.Sunday has no minimun quantity,sample order is acceptable for customers.   2.Fast delivery based on the 4 production lines.   3.Sunday has good after-sales service.    4.If the quality of our products is unqualified,,sunday promise to produce new ones or repaire them.and we will    responsible for all the cost.                        Professional Production and testing          Contact Us      Changchun Sunday Optoelectronics Co.,ltd No9576 Donghuan Road, Changchun, 130033,China TEL:+86-431-81323204   FAX: +86-431-81323204 Website: www.sunday-optics.com