AL2018-C 20 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=18 mm; NA=0.49 AR 1050-1700nm

The AL2018-C is a high-precision aspheric lens offered by Thorlabs, designed with a 20 mm diameter and a central thickness of 7.1 mm. This lens is crafted from S-LAH64, a high-quality optical glass from Ohara, and features an effective focal length (EFL) of 18 mm, making it suitable for a wide range of optical applications.

The lens's aspheric design, characterized by a conic constant of -1.4 and aspheric coefficients up to the 16th order, ensures superior image quality and minimal spherical aberration. The front and back surfaces of the lens are coated with a broadband anti-reflection coating, optimized for the 1050-1700 nm wavelength range, further enhancing its performance.

The AL2018-C's edge thickness measures 3.5 mm, providing robustness and durability. The lens is CNC polished, ensuring excellent surface quality and accuracy. This lens is currently in stock and available for immediate shipping, as indicated by its valid weblink status. For more information or to make a purchase, users can visit the provided weblink.