The W1257 S-BSL7 Optical Glass Window from Sydor Optics is a precision-manufactured rectangular substrate designed for high-performance optical applications. Fabricated from Ohara S-BSL7 optical glass, this component offers stable refractive properties, strong transmission characteristics, and reliable optical clarity. The window measures 83.95 mm x 56.00 mm with a 5.5 mm thickness and features rounded corners, providing a durable and easy-to-integrate solution for optical assemblies where both performance and handling safety are important.

Engineered with tight optical specifications, the W1257 includes fine edge grinding, 60/40 cosmetic quality, and <10 arc-second parallelism to support consistent optical performance. A clear aperture close to the edge and controlled bevels on both surfaces further enhance reliability during installation and use. These characteristics make it well-suited for applications such as laser systems, instrument windows, protective sensor windows, and vacuum or viewing windows, where dependable optical quality and dimensional precision are critical.