This is a Plano-Convex Lens, sourced from the renowned optical components vendor, Edmund Optics. The lens, with a base shape of a circle, is designed for use in the near-infrared spectrum, specifically between 600 and 1050 nanometers.
The lens has a diameter of 25.0mm and a focal length of 400.0mm. The edge thickness of the lens is 2.82mm, while the center thickness is slightly greater at 3.2mm. The lens's front and back surfaces are coated with the EDM NIR-I standard curve coating, which is designed to enhance performance in the near-infrared spectrum.
The lens's geometry includes an inner radius of 0mm and an outer radius of 0mm, with a back focal length of 397.89mm. The lens is made from N-BK7 Schott, a popular material for optical lenses due to its excellent optical properties and versatility.
This lens is a Spherical Lens, meaning it has a surface that is a portion of a sphere. The radius of curvature for the first surface (R1) is 206.72mm.
The lens's web links are valid and indicate that it is currently in stock, making it an ideal choice for immediate use in various optical systems and applications.