SPX028 25.4 mm Dia. x 200 mm FL; Uncoated; Plano-Convex Lens

The SPX028 is a Plano-Convex Lens, a type of spherical lens, sourced from MKS/Newport. This lens has a base shape of a circle and is designed for use in systems that utilize ultraviolet, visible, and near-infrared light, as indicated by its Material ID, UVFS MAL-1965.

The lens has a diameter of 25.4 mm and a thickness at the edge of 3 mm, which gradually increases to a center thickness of 3.883 mm. The lens's effective focal length (EFL) is 200 mm, making it suitable for applications that require a longer focal length. The radius of curvature (R1) of the convex surface is 91.8 mm, and the back focal length (BFL) is 197.33 mm. The lens does not have an inner radius, indicating a plano surface on the other side.

The lens is uncoated, meaning it does not have any anti-reflective or other coatings applied to its surfaces. This may result in higher reflective losses and a reduced transmission compared to coated lenses. However, uncoated lenses are often more cost-effective and can be suitable for applications where such losses are acceptable or can be mitigated by other means.

The lens is designed to operate at a wavelength of 589 nm, which falls within the visible light spectrum. This makes it suitable for use in a wide range of applications, from imaging and metrology to beam shaping and focusing.