SLB-10B-40NM 10.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 400-700nm

The SLB-10B-40NM is a high-quality double-concave lens offered by OptoSigma, a leading vendor in the optical industry. This lens, designed for use within the wavelength range of 400-700nm, is made of the renowned material n-bk7 schott, which guarantees excellent optical performance.

The lens boasts a diameter of 10.0 mm and a center thickness of 2.0 mm, with an edge thickness of 2.6 mm, providing a robust structure suitable for various applications. The effective focal length (EFL) is -39.7 mm, and the back focal length (BFL) is -40.3 mm, making it an ideal choice for systems requiring a strong negative lens.

The double-concave geometry of this lens is defined by radii of curvature of r1=-41.52 mm and r2=41.52 mm, which contribute to its exceptional optical properties. The lens has no inner or outer radius specified, indicating a uniform curvature throughout.

The SLB-10B-40NM features a coating of opt m on both the front and back surfaces, enhancing its performance and durability in the specified wavelength range. This lens is an excellent choice for applications demanding high-performance, negative lenses within the visible spectrum.