Double-concave Lens - N-bk7 & Fused Silica, Diameter: +0/-0.2mm, Clear Aperture: > 90% | Thickness: +/-0.1mm, Radius: +/-0.1%, Surface Quality: 60-40 Scratch & Dig, Coating: Optional Ar

West Coast Tech Limited is a leading optical company, dedicated to the design, manufacturing and distribution of high precision optical elements and sub-system. The company is founded in year 2008 and located in Fuzhou. The principals majored in Applied Optics and have been engaged in the field of optics from year 1998. The manufacturing sites are distributed in Fuzhou and Shangrao. We supply a wide range of optical elements and lenses applied in UV, VIS and IR spectral range, and serve orders from prototype to production. The product lines cover windows, diffusers, domes, prisms, spherical lenses, cylindrical lenses, aspherical lenses, mirrors, beamsplitters, filters, reticles, waveplates and custom lenses such as beam expander, IR lens, medical lens, etc. Meanwhile we are always ready to extend new business and provide customers with more comprehensive product lines. We are familiar with ISO10110 and US Military standard. Our products are fully complied with these standards. The company is equipped with perfect testing equipment and has strict quality control from IQC to FQC. Every component delivered will be carefully inspected. Testing report (data), COC, certificate of material, coating curve or witness are available. From the foundation of company, we have been serving customers with professional knowledge and provide them with satisfactory products by the aid of advanced equipment, mature technology and rich experience. One of our advantages is high quality and low cost. Currently our products are exported to more than 20 countries and widely used in industry, medical, military, as well as research.