SLB-25-200NM 25.0 mm Dia. x -200.0 mm FL; Coated; Plano-Concave Lens 400-700nm

OptoSigma presents the SLB-25-200NM, a Plano-Concave Spherical Lens designed for use within the wavelength range of 400-700nm. This lens boasts a 25.0 mm diameter and a focal length of -200.0 mm, making it suitable for a wide range of optical applications.

The lens is made from the highly versatile material n-BK7 Schott, a borosilicate crown glass known for its excellent optical properties, including low dispersion and high homogeneity. This material ensures reliable and precise light transmission, making it an ideal choice for various optical systems.

The SLB-25-200NM features a front and back coating of Opt M, a general-purpose coating that enhances the lens's performance by reducing reflection and increasing transmission. This coating ensures optimal light throughput, further expanding the lens's capabilities in diverse applications.

The lens's geometry includes an edge thickness of 2.8 mm and a center thickness of 2 mm, with an inner radius of 0 mm and an outer radius of 0 mm. The radii of curvature are -103.8 mm for the front surface and 0 mm for the back surface, which contributes to the lens's plano-concave shape.