ACL2520U-A ø25 mm Aspheric Condenser Lens; f=20.1 mm, NA=0.60 AR 350-700nm

The ACL2520U-A is a high-quality aspheric condenser lens, offered by Thorlabs, designed to optimize performance in various applications. With a catalog number ACL2520U-A, this lens boasts a ø25 mm clear aperture and a focal length of 20.1 mm, making it suitable for systems requiring a large numerical aperture (NA) of 0.6.

This lens is made of B270 Schott glass, a popular material known for its excellent optical properties and versatility. The aspheric design of the ACL2520U-A ensures low distortion and improved image quality compared to traditional spherical lenses. The lens features a front and back coating of tho a bbar, providing enhanced protection and improved light transmission.

The ACL2520U-A has an inner radius of 0 mm, an outer radius of 0 mm, and a diameter of 25 mm. The edge thickness is 2.8 mm, while the center thickness is 12 mm. The back focal length (BFL) is 12 mm, and the effective focal length (EFL) is 20.1 mm. The lens's front and back surfaces have aspheric coefficients (k1, k2, a2, a4, a6, a8, a10, and a12) of varying values, contributing to its superior performance.

The ACL2520U-A is designed to work with a wavelength of 633 nm and is available for purchase directly from the vendor's website, with a current status indicating it is in stock. This lens is an excellent choice for users seeking a reliable, high-performance condenser lens for their optical systems.