SLSQ-10-70N 10.0 mm Dia. x -70.0 mm FL; Plano-Concave Lens Uncoated

The SLSQ-10-70N is a Plano-Concave Spherical Lens, uncoated, with a diameter of 10.0 mm and a focal length of -70.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. 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 geometry includes a thickness edge of 2.4 mm and a thickness center of 2.0 mm. The inner radius is 0 mm, and the outer radius is also 0 mm, indicating a flat surface on one side and a curved surface on the other. The curvature of the concave surface is defined by a radius of 32.2 mm. The back focal length (BFL) is -71.4 mm, slightly longer than the effective focal length (EFL) due to the lens's concave shape.

This lens is designed to work with a wavelength of 546.1 nm, typical for many optical applications. The uncoated surface of the lens may result in some reflection, but this can be mitigated with the use of an anti-reflective coating, which is not included in this standard model but can be added as an optional feature.