Changchun Sunday Optoelectronics Co., Ltd. is a high technology enterprise started optics in year 2005, 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. We have established business relationships with many customers in the world. We make designs and development, pursuing details and service.welcome your inquiry and sample order!