The 45-810 is a circular, flat window with a diameter of 15 mm and a thickness of 2 mm. This protective window is made of UVFS material, specifically UVFS Mal-1965, which is sourced from Edmund Optics. The window is coated with the EDM UV Standard Curve on both the front and back surfaces, providing excellent UV-AR protection within the 250-425nm wavelength range. Its thin lens shape and robust construction make it an ideal choice for various applications. The window's weblink is valid and in stock, ensuring quick and easy access for users.