Commercial Quality Windows, Circular, I2-IR Low OH Grade Fused Silica

Diameter Tolerance +/- 0.125 mm Thickness Tolerance +/- 0.125 mm Surface Accuracy ≤ 2λ per inch Surface Quality 60-40 Scratch-Dig or better Parallelism <5' Edges Fine ground and safety beveled* Clear Aperture 90% *parts under 25.4mm in diameter may not have beveled edges Low OH IR grade fused silica allows for exceptional transmission up to 3 microns.  Combined with a low coefficient of thermal expansion, superior homogeneity and low birefringence, low OH IR fused silica is an outstanding alternative to significantly more expensive IR materials. Applications of interest include process control and inspection using machine vision, high resolution SWIR imaging, remote sensing and metrology. To find out more about this material click here.