G390133322 40 mm Dia. N-BK7 Optical Flat Window; t=6mm 450-700nm

The G390133322 is a high-quality optical flat window, sourced from the renowned vendor Qioptiq Photonics. This window, with a base shape of a flat circle, has a diameter of 40 mm and a thickness of 6 mm, making it suitable for a wide range of optical applications.

The window is made from N-BK7, a popular borosilicate glass known for its excellent optical properties. This material is often used in high-precision optical systems due to its low coefficient of thermal expansion and high homogeneity. The N-BK7 Schott designation indicates that the glass meets the stringent quality standards set by Schott, a leading manufacturer of specialized glass and glass-ceramic products.

The G390133322 is coated with Qio Bbar Arb2visnbk7 on both the front and back surfaces. This anti-reflection coating is designed to reduce surface reflections and increase transmission in the visible spectrum, specifically between 450 and 700 nm. The coating ensures optimal performance and minimal loss of light, making this window an excellent choice for applications that require high transmittance.

The window's geometry is defined as a thin lens, indicating that it has been precisely manufactured to maintain a flat surface and consistent thickness. This makes it ideal for use as a protective window or as an optical element in complex systems.