The W1090 N-BK7 Grade A Fine Annealed H2 Homogeneity optical glass wafer from Sydor Optics is a precision-manufactured circular substrate designed for demanding optical and photonics applications. Made from N-BK7 optical glass, a widely used borosilicate crown glass known for its excellent optical clarity, low dispersion, and stable transmission across the visible spectrum, this component delivers dependable performance in high-precision systems. The wafer measures 127 mm in diameter with a 4 mm thickness, offering a durable and dimensionally stable platform for optical fabrication, prototyping, and integration into advanced optical assemblies.

Engineered with tight optical specifications, the W1090 features Grade A fine annealing with H2 homogeneity, supporting consistent refractive properties across the substrate. Additional characteristics include a minimum 116.84 mm clear aperture, ≤1 arc-minute parallelism, 60/40 cosmetic quality, and transmitted wavefront performance of ≤1/4 wave power and ≤1/8 wave irregularity over the clear aperture. Precision bevels and fine edge grinding help ensure safer handling and reliable installation, making this optical wafer well suited for laser systems, imaging equipment, optical research, and instrumentation applications where optical quality and dimensional accuracy are critical.