The LA9659-E3 is a Spherical Lens (Plano-Convex) with a diameter of 25.4 mm, sourced from Thorlabs. This lens is designed for use with a wavelength of 10600 nm and features a Germanium material ID, specifically germanium burnett. The lens has a focal length (EFL) of 50 mm and a front and back coating of tho e3gearc700012000.
The lens's geometry includes a thickness edge of 3.5 mm and a thickness center of 4 mm. The inner and outer radii are both 0 mm, indicating a plano-convex shape. The front surface has a radius of curvature of 150.3 mm. The lens is circular in base shape.
According to the vendor's website, the LA9659-E3 is currently in stock, as of the last update. The website link is valid and provides further information about the product.