This is a Plano-Convex Lens, type 38-580, with a diameter of 12.5mm and a focal length of 17.5mm. The lens is sourced from the reputable vendor, Edmund Optics, and is currently in stock. The lens is made of the high-quality material, n-BK7 Schott, which is known for its excellent optical properties.
The lens features a YAG-BBAR coating on both the front and back surfaces, specifically designed for the wavelength range of 500-1100nm. This coating enhances the lens's performance by reducing reflection and increasing transmission, making it ideal for various applications within this wavelength range.
The lens's geometry includes a thickness of 1.29mm at the edge and 3.8mm at the center. The inner and outer radii are 0, indicating a flat surface on the uncoated side. The lens's base shape is circular, and its shape is spherical, which is common for Plano-Convex lenses and contributes to its wide range of uses.