Beijing YuXin Technology Co., Ltd. is a high-tech company specialized in optical coating and the manufacture of optical thin film filters. We have experienced and skillful management team and technical team. We invited many professors on optical system, optical coatings, cold processing technique to carry on the instruction and the scene management, enable us in research and development. The company is equipped with ion beam assisted evaporation coaters from domestic companies. With these coaters we can make many kinds of thin film products. Our main products include the metallic high reflective coatings, the dielectric high reflective coatings, the partial reflective coatings, the narrow band polarization beamsplitter,the bandpass filters, the antireflective coatings, the crystal coatings for lead the product, especially the antireflective coating on the TEO2 crystal, which has strong adhesion and very good antireflective effect. Our ultimate goal is to provide high standard and high quality products to customers in the optical instrumentation and military equipment industries.