This is a Plano-Convex Lens, a type of spherical lens, sourced from Standa, a reputable vendor in the optical industry. The lens is characterized by its circular base shape and is designed for use in various optical systems.
The lens has a diameter of 25.4 mm and a thickness that varies from 2 mm at the edge to 4.4 mm at the center. The effective focal length (EFL) of the lens is 60 mm, making it suitable for applications that require moderate magnification or minification. The lens's radius of curvature is 31.002 mm on the curved side, while the other side is plano, or flat.
The lens is made of n-BK7 Schott, a high-quality optical glass known for its excellent optical properties. It is designed to work optimally with light of a wavelength of 546 nm. The lens does not come with any coating, which means it is uncoated. However, users can add coatings to enhance the lens's performance, such as anti-reflective coatings to reduce surface reflections or hard coatings to increase durability.