This product is a 40 mm diameter, 4 mm thick N-BK7 precision protective flat window, coated with MgF2 on both the front and back surfaces. It is sourced from the reputable vendor, Edmund Optics.
The window is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties. This Schott glass type is widely used in various applications due to its low coefficient of thermal expansion and high Abbe number, which contributes to its superior optical performance.
The window features a flat shape, which is ideal for applications that require minimal optical distortion. The thin lens shape further enhances its usability in various setups.
The window's coating is another notable feature. It is coated with MgF2 on both the front and back surfaces, which provides excellent broadband anti-reflection properties. The coating is designed to cover the wavelength range of 400-700nm, making it suitable for a wide range of applications, including but not limited to, imaging systems, beam delivery systems, and laser applications.
The window is currently in stock and available for immediate purchase through the provided weblink.