011-0225E 25.4 mm Dia. N-BK7 Plano-Convex Window; t=6mm Uncoated

The 011-0225E is a Plano-Convex Window, a type of curved window, with a base shape of a circle and a diameter of 25.4 mm. This window has a center thickness of 6 mm and an effective focal length (EFL) of 7737.17 mm, making it suitable for applications that require a long focal length. The curvature of the window is defined by a radius (r1) of 4000 mm.

This window is made of N-BK7, a type of glass manufactured by Schott, which is known for its excellent optical properties and wide transmission range. The window is designed to work at a wavelength of 588 nm, making it suitable for applications that use yellow light, such as sodium lamps.

The window is uncoated, meaning it does not have any anti-reflective or other coatings. This can be advantageous in some applications where the coating might interfere with the optical properties of the system. However, it also means that the window will have a higher reflectivity than a coated window, which should be taken into account when designing the optical system.

The window is available from EKSMA Optics, a vendor known for its extensive catalog of optical components. According to the vendor's website, the window is in stock, indicating that it is readily available for purchase and delivery.