The LA4130-633 is a Plano-Convex Spherical Lens with a diameter of 12.7 mm, manufactured by Thorlabs. This lens is designed for use with a wavelength of 587.6 nm and features a focal length (EFL) of 40 mm. The lens is made from UVFS material with the Mal-1965 index.
The lens has a thickness of 1.9 mm at the edge and 2.9 mm at the center. It is coated with a V-AR-633 coating on both the front and back surfaces, which is ideal for anti-reflection purposes at the specified wavelength.
This lens is available from Thorlabs and is currently in stock. For more information, including technical specifications and purchasing options, please refer to the product webpage at https://www.thorlabs.com/thorproduct.cfm?partnumber=LA4130-633.