WQK2500-AV2 25 mm Dia. N-BK7 Precision Round Window; t=4mm AR 450-900nm

The WQK2500-AV2 is a high-precision, circular window with a diameter of 25 mm and a thickness of 4 mm. It is made from N-BK7, a popular borosilicate glass known for its excellent optical properties, durability, and chemical resistance. This window is sourced from Knight Optical, a reputable vendor in the optical industry.

The window features a broadband anti-reflective (AR) coating, designed to minimize reflection and increase transmission in the visible spectrum, specifically between 450 and 900 nm. This coating is applied to both the front and back surfaces of the window, ensuring optimal performance from both sides.

The WQK2500-AV2 is shaped as a thin lens, making it suitable for a wide range of applications where minimal distortion and high transmittance are required. Its geometry and material properties make it an ideal choice for use in imaging systems, beam delivery, and other optical setups.

Please note that the window's performance is subject to the conditions of its application, including the specific wavelength used, the angle of incidence, and the environmental conditions. Always consult the vendor's specifications and guidelines for accurate performance data.