83-477 50 mm Dia. N-BK7 Precision Protective Flat Window; t=4 mm NIR I 600-1050nm

The 83-477 is a 50 mm diameter, 4 mm thick N-BK7 precision protective flat window, designed for use in the near-infrared spectrum, specifically between 600 and 1050nm. This window is sourced from Edmund Optics, a leading vendor in the optical industry, and is available for immediate purchase.

The window is made from N-BK7, a high-quality borosilicate glass known for its excellent optical properties, including a low coefficient of thermal expansion and high homogeneity. This makes it an ideal choice for applications that require high precision and stability over a wide temperature range.

The window features a standard coating on both the front and back surfaces, specifically the EDM NIR-I coating. This coating is designed to enhance the window's performance in the near-infrared spectrum, providing improved transmission and reduced reflectance. The coating is also hardened to increase its durability and resistance to scratching and other forms of damage.

The window's geometry is defined by its 50 mm diameter and 4 mm thickness. This thin, lightweight design makes it easy to integrate into various optical systems, while its large diameter provides a wide field of view. The window's flat shape ensures that it does not introduce any spherical aberration or other optical distortions.