SBX025 25.4 mm Dia. x 75.6 mm FL; Uncoated; Double-Convex Lens

The SBX025 is a spherical lens with a base shape of a circle, sourced from the reputable vendor MKS/Newport. This lens is uncoated, making it suitable for applications where coating is not a requirement. The lens is designed for use in the visible light spectrum, specifically at a wavelength of 589 nm.

The lens has a diameter of 25.4 mm and a thickness at the edge of 3 mm. The center thickness of the lens is 5.373 mm. The effective focal length (EFL) of the lens is 75.6 mm, which is the distance from the lens's secondary principal plane to the focal point. The back focal length (BFL) is 73.73 mm, which is the distance from the lens's rear surface to the focal point.

The first radius of curvature (R1) is 68.547 mm, and the second radius of curvature (R2) is -68.547 mm. The inner radius is 0 mm, and the outer radius is also 0 mm. The lens is made of UVFS Mal-1965 material, which is a type of glass commonly used in optical applications.

This lens is a double-convex lens, meaning it has two convex surfaces. It is a versatile lens that can be used in a variety of applications, including imaging systems, beam shaping, and light collimation. The uncoated version of this lens is ideal for applications where cost is a concern, or where the lens will be used in a controlled environment where surface contamination is not a significant issue.