The W1054-Borofloat 200 mm dia × 2.85 mm thick optical wafer is a precision-manufactured BOROFLOAT® borosilicate glass blank with tightly controlled diameter and thickness tolerances, fine ground edges, and high cosmetic quality. Known for its excellent optical clarity, low thermal expansion, and robust chemical and thermal resistance, this large-format glass wafer provides stable dimensional performance and a generous clear aperture, making it ideal for imaging systems, photonics, metrology, precision optics, and demanding laboratory or industrial applications that require consistent material properties and reliable optical performance.