LA1252 N-BK7 Plano-Convex Lens; Dia:25.0 mm; f=25.4 mm Uncoated

The LA1252 N-BK7 Plano-Convex Lens is a high-quality optical component sourced from Thorlabs, a leading vendor in the field of precision photonics. This lens, with a diameter of 25.0 mm, is designed for use in a wide range of optical systems, offering excellent performance and reliability.

The lens is made from N-BK7, a popular glass type known for its excellent optical properties. This material, also known as Schott glass, is characterized by a high refractive index and low dispersion, making it ideal for a wide range of applications. The lens features a plano-convex geometry, with a flat (plano) surface on one side and a curved (convex) surface on the other. This design allows for efficient light collection and focusing.

The geometry of the lens includes a diameter of 25.0 mm, a thickness at the edge of 2.5 mm, and a thickness at the center of 11.7 mm. The effective focal length (EFL) of the lens is 25.4 mm, which is the distance from the lens center to the focal point. The radius of curvature of the curved surface is 13.1 mm, and the back focal length (BFL) is 17.7 mm. The lens does not have any coating, which means it is uncoated.

This lens is designed to work at a wavelength of 632.8 nm, making it suitable for use in a wide range of applications, including laser systems and optical metrology. The lens is spherical in shape, which is a common and versatile geometry in optical systems.