SLSQ-20B-25P 20.0 mm Dia. x 26.2 mm FL; Double-Convex Lens Uncoated

The SLSQ-20B-25P is a high-quality double-convex lens offered by OptoSigma, a leading vendor in the optical industry. This lens, with a diameter of 20.0 mm and a focal length of 26.2 mm, is designed for use in a wide range of optical applications.

The lens is made of fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock. The base shape of the lens is circular, and it features a double-convex geometry, with radii of curvature of 23 mm for both the front and rear surfaces. This geometry results in a high numerical aperture, making the lens suitable for use in high-resolution imaging systems.

The lens has a thickness of 2 mm at the edge and 6.6 mm at the center. The effective focal length (EFL) is 26.2 mm, and the back focal length (BFL) is 23.8 mm. The lens is uncoated, offering a cost-effective solution for applications where anti-reflection coatings are not required.

The SLSQ-20B-25P is available for purchase through the OptoSigma website, where it is listed as being in stock. The website also provides detailed specifications and technical drawings for the lens, as well as information on compatible mounts and accessories.