Rectangular window Window are of high precision dimension control, minimal transmitted beam deviation, high surface quality. With those excellent features, the bk7 , sapphire, infrared etc window is widely use in projection optics systems, imaging and optical measurement system. Capacity: Material: optical glass, fused silica, silicon, germanium, caf2, mgf2, sapphire, znse, zns Diameter: 1 to 500 mm Diameter tolerance: +0/-0.02 mm Thickness tolerance: 0.01 mm Surface quality: 10-5 Parallelism: 1 minute Coating: uncoated, ar, hr, beamsplitter ect.
