SLSQ-25-120N 25.0 mm Dia. x -120.0 mm FL; Plano-Concave Lens Uncoated

The SLSQ-25-120N is a Plano-Concave Lens with a diameter of 25.0 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 manufactured from fused silica, a material known for its excellent optical properties and durability.

The lens geometry includes a thickness edge of 3.4 mm and a thickness center of 2 mm, providing a robust structure. The inner and outer radii are both 0 mm, indicating a planar surface on one side and a concave surface on the other. The lens's effective focal length (EFL) is -120.0 mm, and the back focal length (BFL) is -121.4 mm, which is a critical specification for designing optical systems.

The SLSQ-25-120N is uncoated, meaning it does not have any anti-reflective or other surface coatings. This may be suitable for applications where such coatings are not required or desirable. However, users should be aware that uncoated lenses can exhibit higher reflectance, which may affect the performance in certain applications.

This lens is designed to work with a wavelength of 546.1 nm, a common reference wavelength in optical systems. It is spherical in shape, a common and versatile geometry in optical systems due to its ease of manufacturing and good optical performance.