This is a Plano-Convex lens from Holmarc Opto-Mechatronics, a leading manufacturer of optical components. The lens has a diameter of 12.5mm and a thickness at the edge of 2mm. The effective focal length (EFL) of this lens is 15mm, making it suitable for a wide range of optical applications.
The lens is made of N-BK7, a popular optical glass from Schott, known for its excellent optical properties. The curvature of the lens is defined by a radius (R1) of 7.824mm on the convex side. The inner and outer radii are both zero, indicating a plano-convex geometry.
The lens is coated with BBAR (Broadband Anti-Reflection) coating, which is designed to reduce reflection and increase transmission across the spectral range of 400-700nm. This coating is applied to both the front and back surfaces of the lens, enhancing its performance in various optical systems.