SLSQ-15-30N 15.0 mm Dia. x -30.0 mm FL; Plano-Concave Lens Uncoated

The SLSQ-15-30N is a Plano-Concave Lens with a diameter of 15.0 mm and a focal length of -30.0 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 lens's geometry is characterized by its edge thickness of 4.2 mm and center thickness of 2 mm. The inner radius is 0 mm, and the outer radius is also 0 mm, indicating a flat surface on both sides of the lens. The lens's back focal length (BFL) is -31.4 mm, and its effective focal length (EFL) is -30 mm. The radius of curvature (R1) is -13.8 mm.

This lens is designed to work with a wavelength of 546.1 nm. It is a spherical lens, meaning it has a single curved surface. The lens's shape is circular, making it suitable for a wide range of optical applications.

Please note that the lens is uncoated, which means it does not have any anti-reflective or other coatings. This may affect its performance in certain applications, particularly those requiring high transmission or low reflectivity. However, uncoated lenses can be advantageous in certain situations, such as when cost is a primary concern or when the lens will be used in a vacuum environment.