SLSQ-25.4-30N 25.4 mm Dia. x -30.0 mm FL; Plano-Concave Lens Uncoated

OptoSigma's SLSQ-25.4-30N is a plano-concave lens made of fused silica, a material known for its excellent optical properties and durability. This lens has a diameter of 25.4 mm and a center thickness of 2 mm, making it suitable for a wide range of optical applications. The lens's concave shape, with a radius of curvature of -13.8 mm, results in a back focal length of -31.4 mm, providing a negative focal length of -30 mm.

The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. However, this also means that it is more cost-effective and can be used in applications where anti-reflective coatings are not necessary. The lens is designed to work at a wavelength of 546.1 nm, making it suitable for use in visible light applications.

This lens is a spherical lens, which means it has a spherical surface. This type of lens is commonly used in optical systems because of its simple manufacturing process and versatile applications. The lens's geometry is circular, making it compatible with various optical mounts and holders.