OPB-80C08-1-5 80 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=8 mm Uncoated

The OPB-80C08-1-5 is a high-quality optical window from OptoSigma, designed for use in a wide range of applications. This window boasts a base shape of a circle with a generous 80 mm diameter, making it suitable for use in systems with substantial aperture requirements.

The window is made from N-BK7, a popular glass type known for its excellent optical properties. N-BK7, also known as BK7, is a borosilicate crown glass with a low refractive index and low dispersion, making it an ideal choice for various optical systems. The glass is sourced from Schott, a renowned manufacturer known for its high-quality optical materials.

The window has a thickness of 8 mm, providing sufficient structural integrity while minimizing unwanted optical effects such as spherical aberration. The window is uncoated, meaning it does not have any anti-reflective or other surface coatings. This may be desirable in applications where such coatings are not required or may interfere with the system's operation.

The window is designed for use at a wavelength of 588 nm, although it can be used across a broader spectrum depending on the specific requirements of the application. It is classified as a flat window due to its parallel surfaces, which are designed to minimize optical distortion.