OPB-130C13-P 130 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=13 mm Uncoated

The OPB-130C13-P is a 130 mm diameter N-BK7 round optical parallel flat window, with a thickness of 13 mm, sourced from OptoSigma. This window is a type of flat window, designed with a base shape of a circle, which is a common geometry in optical systems due to its symmetry and ease of alignment.

The window is made of N-BK7, a type of glass commonly used in optical systems due to 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 material for optical windows.

The window is designed for use at a wavelength of 588 nm, which is in the visible light spectrum. This makes it suitable for use in a wide range of applications that involve visible light, such as imaging systems, beam delivery systems, and laser systems.

The window is uncoated, meaning it does not have any anti-reflective or other coatings applied to its surfaces. This can be advantageous in some applications where the natural reflectivity of the glass surface is desired, or where the cost of coatings is a concern. However, in applications where low reflectivity or other specific surface properties are required, coatings can be applied to the window to meet these needs.