36-994 25 mm Dia. N-BK7 Precision Protective Flat Window; t=1 mm MgF2 400-700nm

This 36-994 optical component is a precision protective flat window, sourced from the reputable vendor, Edmund Optics. The window, which has a base shape of a circle, boasts a diameter of 25 mm and a thickness of 1 mm, making it a thin and lightweight option for various optical applications.

The window is made from N-BK7, a high-quality borosilicate glass known for its excellent optical properties. This material, often used in high-precision applications, ensures minimal optical distortion and maintains consistent performance across a wide range of temperatures and wavelengths.

The window features a coating of MgF2 on both the front and back surfaces. This coating, part of Edmund Optics' standard curve, is designed to provide superior broadband anti-reflection performance, particularly in the 400-700 nm range. This makes the window ideal for use in applications where maximum transmission and minimal reflection are critical, such as in imaging systems, beam delivery systems, and laser applications.

The window's shape is that of a thin lens, suggesting that it may also have some focusing or collimating properties, although this is not explicitly stated in the provided data. Regardless, its primary function is as a protective window, providing a physical barrier for more sensitive optical components while minimally affecting the light passing through it.