This is a HO-BXL12.5-1.2C 12.5mm Dia. N-BK7 Double-Convex Lens, a high-quality optical component sourced from Holmarc Opto-Mechatronics. The lens is designed with a base shape of a circle and features a spherical geometry. The diameter of the lens is 12.5mm, and it has a thickness edge of 2mm. The effective focal length (EFL) of this lens is 15mm.
The lens is made of N-BK7, a popular glass type in the optical industry known for its excellent optical properties. The front and back of the lens are coated with a single layer of MgF2, which is indicated by the "hol mgf2 0 aoi" in the item data. This coating enhances the lens's performance by reducing reflection and increasing transmission.
The lens's inner and outer radii are 0, and the curvature radii (r1 and r2) are 14.782554mm and -14.782554mm, respectively. This double-convex lens design is often used in various applications due to its ability to focus light to a single point.
According to the item data, the lens is in stock and available for immediate purchase. For more information about this product, you can visit the Holmarc Opto-Mechatronics website through the provided link.