KPX211 50.8 mm Dia. x 500 mm FL; Uncoated; Plano-Convex Lens

The KPX211 is a Plano-Convex lens with a diameter of 50.8 mm and a focal length of 500 mm, sourced from the reputable vendor MKS/Newport. This lens is uncoated and made of N-BK7 Schott, a popular material in the optical industry due to its excellent optical properties.

The lens's geometry is characterized by a thickness of 3 mm at the edge and 4.251 mm at the center. The inner radius is 0, and the radius of curvature (R1) is 258.4 mm. The back focal length (BFL) is 497.19 mm, and the effective focal length (EFL) is 500 mm. The lens's base shape is circular, and it is designed to operate at a wavelength of 589 nm.

This lens is a Spherical type, which means it has a spherical surface. The Spherical shape is the most common and simplest type of lens, making it a versatile choice for various applications. The uncoated feature of this lens means it does not have any additional layers to enhance its durability or alter its optical properties.

Please note that the weblink provided leads to the product page on Newport's official website, where you can find more information about this lens, including its availability and pricing.