Changchun Sunday Optoelectronics Co.,ltd is a high technology enterprise for over 10 years optics design and productions. The company was established by Dr. Wang in year 2001.With these years development, Sunday has became a high-tech enterprise producing optical lenses, prisms, windows, filters, mirrors, coatings, camera lens, laser components. The four production lines can meet many customers’s needs. optical glass, crystal, sapphire, fused silica,znse,caf2,ge materials and more than 200 kinds of material are for customers. Sunday has advanced testing devices, such as ZYGO interferometer、focalmeter, NIKON 6D ,Nikon ruler, collimators, before shipping we testing every lens.