SLB-25.4B-30NM 25.4 mm Dia. x -29.7 mm FL; Coated; Double-Concave Lens 400-700nm

OptoSigma presents the SLB-25.4B-30NM, a double-concave lens with a 25.4 mm diameter and a focal length of -29.7 mm. This lens is specifically designed for use within the wavelength range of 400-700nm, making it suitable for a wide array of optical applications.

The lens is constructed from n-BK7 Schott, a high-quality optical glass renowned for its excellent transparency and homogeneity. This material is particularly well-suited for use in the visible spectrum, contributing to the lens's high performance within its designated wavelength range.

The SLB-25.4B-30NM features a spherical shape, with both surfaces exhibiting a concave curvature. The first surface has a radius of curvature of -31.14 mm, while the second surface boasts a radius of 31.14 mm. This unique configuration contributes to the lens's exceptional optical properties.

In terms of thickness, the edge of the lens measures 7.4 mm, while the center thickness is 2 mm. The lens's back focal length (BFL) is -30.4 mm, and it has no inner or outer radius.

The lens is coated with Opt M on both the front and back surfaces. This coating enhances the lens's performance by reducing surface reflections and increasing transmission, thereby improving overall system efficiency.

The SLB-25.4B-30NM is currently in stock and available for immediate purchase through the OptoSigma website. With its high-quality construction, precise specifications, and wide wavelength range, this lens is an excellent choice for a variety of optical applications.