SLB-30-70N 30.0 mm Dia. x -70.0 mm FL; Plano-Concave Lens Uncoated

The SLB-30-70N 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, with a diameter of 30.0 mm. The lens has a thickness edge of 5.2 mm and a thickness center of 2.0 mm, making it a robust and durable option.

The effective focal length (EFL) of this lens is -70.0 mm, indicating its concave nature. The first radius of curvature (R1) is -36.33 mm, and the back focal length (BFL) is -71.3 mm. The lens is made of n-bk7 schott material, a common choice for its high refractive index and low dispersion.

This lens is designed to operate at a wavelength of 546.1 nm. The shape is spherical, a common choice for its ease of manufacturing and versatility. The coating is absent, which may affect the lens's performance in certain applications. However, it can be beneficial in situations where minimal reflection is required.

The lens's geometry, material, and wavelength make it suitable for various applications, including imaging systems, beam shaping, and optical testing. The uncoated feature adds to its versatility, making it a cost-effective solution in many scenarios.

Please note that the provided weblink is valid and the lens is in stock, making it readily available for your optical needs.