Exceptional light transmission range of 0.15 μm to 12.5 μm with transmittance exceeding 93% for optimal performance. Available in multiple sizes: Φ10*1mm, Φ13*2mm, Φ15*1mm, and Φ15*2mm to suit various optical applications. High melting point of 1280℃ ensures durability and reliability in high-temperature environments. Ideal for manufacturing optical windows, prisms, and lenses, suitable for Fourier transform analysis and optical instruments. Precision-engineered with a surface finish of 60 to 40 and 1/4 lambda @ 633 nm for superior optical clarity and performance.