SLB-30-50N 30.0 mm Dia. x -50.0 mm FL; Plano-Concave Lens Uncoated

The SLB-30-50N is a Plano-Concave Lens, part of the Spherical Lens category, sourced from OptoSigma. This lens is uncoated and features a base shape of Circular. The lens has a diameter of 30.0 mm and a thickness edge of 6.8 mm, with a thickness center of 2.0 mm. The effective focal length (EFL) of this lens is -50.0 mm, making it a negative or diverging lens.

The lens's inner radius is 0 mm, and the outer radius is also 0 mm, indicating a uniform curvature. The first radius of curvature (R1) is -25.95 mm, and the back focal length (BFL) is -51.3 mm. The lens is made of n-BK7 Schott material, a common choice for optical elements due to its excellent optical properties.

The lens is designed to operate at a wavelength of 546.1 nm. The shape of the lens is spherical, a common choice for optical elements due to its ease of manufacturing and good optical performance. The lens does not come with any coating, which means it is in its raw state and may have reduced transmission and increased susceptibility to environmental factors.