The WG40530-A is a precision window made from UVFS material, specifically UVFS Mal-1965, with a diameter of 0.5 inches (12.7 mm) and a thickness of 3 mm. This window is designed for broadband use, with an anti-reflection coating that covers the wavelength range of 350-700 nm on both the front and back surfaces. This coating, denoted as "tho a bbar," is a broadband anti-reflection coating that reduces reflection and increases transmission, making it ideal for a wide range of optical applications.
The window features a flat base shape and a thin lens shape, which is useful in applications where a flat surface is required but a lens-like effect is also desirable. The vendor for this product is Thorlabs, a reputable and well-known manufacturer of optical components. According to the vendor's website, the item is currently in stock, ensuring quick delivery for those who need it.