SLB-25B-170PM 25.0 mm Dia. x 170.5 mm FL; Coated; Double-Convex Lens 400-700nm

The SLB-25B-170PM is a high-quality lens from OptoSigma, designed for use in the 400-700nm wavelength range. This lens is a Spherical Lens (Convex-Convex) type, featuring a base shape of Circular for versatile application.

The lens has a diameter of 25.0 mm and a thickness edge of 2.0 mm, ensuring durability and stability. The thickness center is 2.9 mm, providing a balanced structure for optimal performance. The effective focal length (EFL) of this lens is 170.5 mm, making it suitable for a variety of optical applications.

The lens's front and back surfaces are coated with "opt m", enhancing its light transmission capabilities and protecting it from environmental factors. The first radius of curvature (r1) is 176.46 mm, while the second radius of curvature (r2) is -176.46 mm, indicating its double-convex design. The back focal length (BFL) is 169.5 mm, and both the inner and outer radii are 0 mm.

This lens is made of n-bk7 schott material, a popular choice for its excellent optical properties and versatility. The lens's wavelength is 546.1 nm, which is within the visible light spectrum.