SLSQ-20-120N 20.0 mm Dia. x -120.0 mm FL; Plano-Concave Lens Uncoated

The SLSQ-20-120N is a Plano-Concave Lens with a diameter of 20.0 mm and a focal length of -120.0 mm, making it a negatively powered lens. This lens is sourced from OptoSigma, a renowned vendor in the optical industry, and is uncoated.

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 spherical geometry. The center thickness of the lens is 2.0 mm, while the edge thickness is 2.9 mm, providing a robust structure.

The SLSQ-20-120N has an inner radius of 0 mm and an outer radius of 0 mm, indicating a uniform curvature. The radius of curvature (R1) is -55.2 mm, and the back focal length (BFL) is -121.4 mm. The lens is designed to operate at a wavelength of 546.1 nm.

This lens is a great choice for applications that require a negative lens with a high refractive index and excellent optical quality. It is available for purchase through the OptoSigma website, where you can find more detailed specifications and pricing information.