This is a Plano-Convex lens, a type of spherical lens, sourced from Holmarc Opto-Mechatronics. The lens has a base shape of a circle and a diameter of 12.5mm. The thickness of the lens at the edge is 2mm, and it has an effective focal length (EFL) of 50mm. The lens is made of N-BK7 Schott glass, a popular choice for its excellent optical properties.
The lens's front and back surfaces are coated with BBAR (Broadband Anti-Reflection) coating, optimized for a wavelength of 587.6nm, which falls within the visible light spectrum. This coating reduces reflection and increases transmission, making the lens suitable for various applications, including imaging and laser systems.
The lens's geometry is such that it has no inner radius, and the outer radius is also zero, indicating a simple plano-convex structure. The curvature of the convex surface is specified as 26.081, which is the radius of curvature.
The lens is available from Holmarc Opto-Mechatronics, and the link provided leads to their website where more information and purchasing options can be found. The status of the weblink indicates that the lens is in stock, ensuring quick delivery for your optical system needs.