SLSQ-30B-100N 30.0 mm Dia. x -99.7 mm FL; Double-Concave Lens Uncoated

The SLSQ-30B-100N is a high-quality double-concave lens, 30.0 mm in diameter, manufactured by OptoSigma. This lens is made of fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock. The lens features a base shape of a circle and is uncoated, offering a cost-effective solution for applications where coating is not required.

The lens's geometry is characterized by its double-concave design, with a center thickness of 2 mm and an edge thickness of 4.5 mm. The effective focal length (EFL) is -99.7 mm, and the back focal length (BFL) is -100.3 mm. The radii of curvature for the first and second surfaces are -92 mm and 92 mm, respectively. The lens does not have an inner or outer radius.

This lens is designed to operate at a wavelength of 546.1 nm. It is a spherical lens, which means it has a constant curvature across the surface. The lack of coating on this lens can be advantageous in certain applications where coating might introduce unwanted reflections or alter the optical properties of the lens.