Optical glass double aspherical lenses

Specifications optical double aspherical lenses

Material:optical glass

Dia.:50mm+0/-0.1

S/D:40-20

Flatness:lambda/2

Optical  bi Aspherical Lens for flashlight,camera,condenser,projection,eyeglass   Aspheric lenses are any lenses whose surface angles and profiles are neither part of a sphere nor part of a cylinder. Conventional or non-asphericlenses have the same curve across their entire surface, like a ping-pong ball.Asphericlenses accomplish the same amount of refraction but are flatter and slimmer.        Details of aspheric lens  1.Material:optical glass 2.Dia.3mm to 200mm+0/-0.1 3.Surace quality:40-20 4.Center thickness:21mm 5.flatness;1/2lambda (general standard)  6.CA:85% 7.Centeration:30seconds 8.Chamfer:0.2mmx45 degree     Coatings are on request.          Welcme your inquiry,you will be replied immediately!     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, Sunday has proven technology and high-tech testing devices, such as ZYGO interferometer, NIKON 6D, Nikon ruler and collimator set. 4 production lines can offer large demands for customers. Sunday also has laser products such as laser module, laser pointer, portable laser and laser diode.       Sunday has established business relationships with many customers in the world. We make designs and development, pursuing details and service. We 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.