The SLSQ-20B-120P is a high-quality double-convex lens, characterized by its 20.0 mm diameter and a focal length of 120.5 mm. This lens is sourced from OptoSigma, a renowned vendor known for their extensive range of optical elements.
The lens is made of fused silica, a material with a high damage threshold and excellent thermal shock resistance, making it suitable for a wide range of applications. The base shape of the lens is circular, and it features a spherical geometry with a center thickness of 2.9 mm and an edge thickness of 2 mm.
The SLSQ-20B-120P has a back focal length of 119.5 mm and a clear aperture, providing a wide field of view. The radii of curvature for the first and second surfaces are 110.4 mm and -110.4 mm, respectively. The lens is uncoated, offering a high transmission rate for the wavelength of 546.1 nm.
This lens is available for purchase through the OptoSigma website, where you can find more detailed specifications and additional product images. The link to the product page is provided in the item data for your convenience.