This is a Plano-Convex Lens, a type of spherical lens, sourced from the renowned optical vendor, Edmund Optics. The lens has a diameter of 25.0mm and a focal length of 50.0mm, designed for use with a wavelength of 1550nm.
The lens is made from the high-quality material, n-BK7 Schott, which is known for its excellent optical properties and durability. The base shape of the lens is circular, and it features a Plano-Convex geometry, where one side is flat (Plano) and the other side is curved (Convex).
The lens has a thickness of 1.68mm at the edge and 4.9mm at the center. The inner radius is 0mm, and the outer radius is also 0mm, indicating a symmetrical curvature. The effective focal length (EFL) of the lens is 50mm, and the back focal length (BFL) is also 50mm.
The lens is coated with Edmund Optics' Las V-Coat 1550, a specialized coating designed for laser applications at 1550nm. This coating ensures high transmission and low reflection, making it ideal for use in laser systems.
The item data indicates that this product is in stock, and you can find more information and purchase it from the Edmund Optics website using the provided weblink.