Focusing on the design,

development,and production processing of 

high-precision special optical products

About Baoyu

The company originated in Shanghai in the 1980s and established a solid foundation for development by absorbing the technology and talents of Shanghai Optical Instrument Factory. In 2000, it settled in the Xiaji Town Industrial Park through investment attraction. Since 2000, the company has been specializing in optical component processing. Carrying forward the spirit of craftsmanship, focusing on small batches, high difficulty, and high-precision optical components, we have developed our own key core technologies through research and development, and are particularly at the forefront of the industry in the processing of cylindrical mirrors and polyhedral optical components.

Processing type

Infrared materials (crystals, sapphire, sulfur based glass, calcium fluoride, lithium fluoride, barium fluoride, zinc sulfide, zinc selenide, single crystal silicon, single crystal germanium, etc.)



Processing of free-form surfaces, tire mirrors, off-axis paraboloids, cylindrical mirrors, polyhedra, non spherical surfaces, silicon carbide scanning mirrors, metal reflectors, infrared light windows, lenses, cylindrical mirrors, cones, and special shaped optical components



Various high-quality thin films in the ultraviolet to infrared wavelength range, such as zero order smoothness ultra wideband ultra-low residual reflection anti reflection film, nano bandwidth bandpass filter, ultra wideband high reflection film, multi band spectral separation film, anti reflection film, semi reflective film, high reflection film, filter film, metal film, polarizing film, depolarization film, etc. The number of membrane layers ranges from a few to 200, and the membrane layer can meet various functional and environmental testing requirements

Processing materials

Coating type

The company has a modern R&D and production base of about 20 acres, with a vast production area of over 10000 square meters. We have invested tens of millions of yuan in infrastructure improvement and upgrading, aiming to comprehensively and efficiently meet the diverse needs of various customers.

Here, we are equipped with over 200 cutting-edge production inspection equipment, including 6 sets of high-end non spherical optical machining centers carefully imported from Germany, 2 ball surface milling machines selected from South Korea, and 3 precision vacuum coating machines and other core equipment. The introduction of these high-precision and cutting-edge equipment has enabled us to achieve a leapfrog improvement in production capacity and reach new heights.

Trust Choice

System Certification Certificate