The W1204-D263 100 mm diameter × 1 mm thick optical wafer is precision-manufactured from SCHOTT D 263® borosilicate glass, delivering excellent optical clarity, low thermal expansion, and strong chemical resistance in a reliable, high-quality substrate. With tightly controlled diameter and thickness tolerances, smooth surface finish, and fine edges, this 100 mm wafer provides stable dimensional performance and consistent optical properties ideal for imaging systems, sensor covers, micro-optics, photonics research, and precision engineering applications where dependable material performance is essential.