Ultraviolet fused silica has high transmittance from ultraviolet to near-infrared (185-2100nm), which is an ideal choice for application in the ultraviolet to near-infrared wavelength range. In addition, compared with H-K9L (N-BK7), UV fused silica has better uniformity and lower thermal expansion coefficient. We offer both uncoated and coated high-precision window , and customers can also customize the size and coating. Compared with H-K9L optical glass, the ultraviolet fused silica glass has a wider spectral range (185nm-2.1 μ m), excellent transmittance in the ultraviolet band, lower refractive index, better uniformity, smaller thermal expansion coefficient, higher chemical resistance and low fluorescence. Can be used to make various optical components.