G390133000 40 mm Dia. N-BK7 Optical Flat Window; t=6mm Uncoated

The G390133000 is a 40 mm diameter N-BK7 Optical Flat Window with a thickness of 6mm, sourced from the renowned optical components manufacturer, Qioptiq Photonics. This window is a type of optical element that allows light to pass through while minimally altering its properties.

The window is made from N-BK7, a popular type of 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 specific type of N-BK7 used here is from Schott, a leading glass manufacturer, ensuring high quality and reliability.

The window is flat, meaning it does not have any curvature. This is ideal for applications where no focusing or collimating of light is required. The window is also uncoated, meaning it does not have any anti-reflective or other coatings applied to it. This can be beneficial in applications where the user wants to minimize the cost or where the coating may interfere with the desired optical properties.

The window is designed to operate at a wavelength of 633 nm, although it can be used with other wavelengths as well, depending on the specific application. It has a shape described as "Thin Lens", which suggests that it is designed to have minimal optical power, further emphasizing its use as a window rather than a lens.