The MidOpt LP170-27 fused silica protective window is made from an ultra-pure, synthetic optical material similar to fused quartz. They offer extremely low thermal expansion, high-resistance to shock, superior scratch resistance, and excellent optical properties. They perform well in high-temperature applications, able to withstand temperatures up to 1100° C. They are also chemically resistant and have superior transmission in the UV through near-infrared spectral ranges. All MidOpt filters can also be purchased unmounted and in custom dimensions upon request from Machine Vision Direct. Technical Specifications Specifications + Useful Range Min 200 nm Useful Range Max 2300 nm Stabledge Yes Adhesive Backed Yes Tolerance 10 % Peak Transmission ≤ 85 % Surface Quality (Scratch-Dig) 40-20 Substrate Material Quartz Filter Diameter M27 x P0.5 Product Availability + Standard Lead Time 15 Days Stock Location Built to Order Product Lifecycle Active