OPB-50.8C08-4-5 50.8 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=8 mm Uncoated

The OPB-50.8C08-4-5 is a high-quality optical window from OptoSigma, designed with precision and durability in mind. This window, with a diameter of 50.8 mm, is made from N-BK7, a popular glass type known for its excellent optical properties, including a high refractive index and low dispersion.

The window features a thickness of 8 mm, providing a robust structure suitable for various applications. Despite its robustness, the window is thin enough to minimize unwanted optical effects such as aberration and distortion.

The window is uncoated, meaning it does not have any additional layers to alter its optical properties. This can be advantageous in applications where the natural properties of the glass are desired, or where cost is a significant factor.

The window is designed in a flat configuration, ensuring parallelism between its two surfaces. This is crucial in applications where light path deviation cannot be tolerated, such as in interferometry or beam delivery systems.

The window's circular shape, often referred to as a 'round window', is versatile and can be used in a wide range of applications. It is ideal for use in optical systems where a circular aperture is required, or where the window needs to be rotated without affecting the optical path.