The 47-487 is a high-quality spherical lens, boasting a 9mm diameter and a focal length of 18mm. This double-convex lens, sourced from the reputable vendor Edmund Optics, is designed for visible light applications, specifically within the wavelength range of 425-675nm.
The lens's geometry is meticulously crafted, with an edge thickness of 1.47mm and a center thickness of 2.6mm. The front and back surfaces are coated with the EDM VIS-0 standard curve coating, enhancing its performance in visible light applications. The lens's base shape is circular, and it features an effective focal length (EFL) of 18mm, making it suitable for a wide range of optical systems.
The lens's inner and outer radii are 0, indicating a symmetrical design. The first radius of curvature (R1) is 18.15mm, while the second radius (R2) is -18.15mm, further highlighting its double-convex nature. The back focal length (BFL) is 17.12mm.
The lens is made from n-BK7 Schott, a popular optical glass known for its excellent optical properties and versatility. This lens is an excellent choice for users seeking a reliable, high-performing optical component for their visible light applications.