38-679 25.4mm Dia. x 500mm FL; Laser Grade Plano-Convex Lens Laser V-Coat 355nm

This is a laser grade plano-convex lens, designed and manufactured by Edmund Optics, a renowned optical elements vendor. The lens boasts a diameter of 25.4mm and a focal length of 500mm, making it suitable for a wide range of applications that require high-precision optics.

The lens is made from UVFS, a material with a refractive index of 1.965, which is often used in laser applications due to its excellent transmission properties in the ultraviolet region. The lens features a plano-convex geometry, meaning one side is flat (plano) and the other is curved (convex). This design allows for efficient light collection and focusing.

The lens is coated with Edmund Optics' Laser V-Coat 355nm on both the front and back surfaces. This coating is specifically designed for use with 355nm lasers and offers high transmission and low reflectivity, ensuring optimal performance in laser applications.

The lens has a center thickness of 4mm and an edge thickness of 3.63mm, providing robustness and durability. The inner and outer radii are 0mm, indicating a sharp transition between the flat and curved surfaces. The lens's effective focal length (EFL) is 500mm, which is the distance from the lens's center to the point where the light rays converge.