Beijing Propitious Optical Instrument., Ltd, is one specialized engage in optics thin film product development and the production privately operated high tech enterprise. The company had been established at the beginning of 2005, is located in the Chaoyang electronic technology garden area of Beijing. The company has an experienced production team, and invited many professors which on optical system, optics thin film, photography duplication to carry on the instruction and the scene management, enabled us in the photoelectricity new product research and development, the photoelectricity product design transformation, aspects and so on optics components assembly to have the breakthrough, and has developed a series of high quality optics thin film product, in which by the metallic high reflective coatings, the dielectric high reflective coatings, the Partial reflective coatings, the bandpass filters, the polarization beamsplitter coatings for lead the product. The company has each kind of model ion beam assisted evaporation coaters from domestic compannies, the advanced text instruments, for high quality, the high yield production has provided the powerful safeguard, wholeheartedly provides the high quality product and the service for the user community. The technological innovation, the customer supreme, the science and technology for originally is company's management objective. The full display technology superiority, exerts oneself researches and develops each new product to satisfy the domestic and foreign market demand is the development targets which the company pursues.