This is a Plano-Convex Lens, sourced from the renowned optical components vendor, Edmund Optics. With a diameter of 40.0mm and a focal length of 300.0mm, it is designed for use in the Near-Infrared II (NIR II) spectrum, specifically catering to the wavelength range of 750-1550nm.
The lens is made from the high-quality material, N-BK7 Schott, which is known for its excellent optical properties and durability. The front and back surfaces of the lens are coated with the EDM NIR-II STD Curve coating, enhancing its performance in the NIR II spectrum.
The geometry of the lens includes a thickness of 2.84mm at the edge and 8.0mm at the center. The lens's effective focal length (EFL) is 80.0mm, and its radius of curvature (R1) is 41.34mm. The back focal length (BFL) is 74.73mm, and both the inner and outer radii are 0mm.
This lens is currently in stock and available for immediate purchase. For more information, including pricing and detailed specifications, please refer to the provided web link: https://www.edmundoptics.com/p/400mm-dia-x-3000mm-fl-nir-ii-coated-plano-convex-lens/22166/