Dayoptics, Inc. originally known as combination of Fuzhou Optics and Polarization Optics is a fast-developed shareholder company, specializing in crystal and optical components in the photonics industry. As a manufacturer of crystal and optical products which are widely used in semiconductor, electronics, optics, laser and telecommunication, Dayoptics excels at manufacturing reliable high-quality products at very competitive prices. Our products have been exported to worldwide manufactures.