89-175 25mm Dia. x 25mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm

The 89-175 is a Double-Convex Lens, a type of Spherical Lens, sourced from Edmund Optics. This lens boasts a base shape of Circular geometry, with a diameter of 25mm and a thickness edge of 2.9mm. The thickness center measures 8mm, and the Effective Focal Length (EFL) is 25mm. The lens features a front and back coating of EDM VIS EXT, providing excellent visual enhancement within the wavelength range of 350-700nm.

The lens curvature is defined by two radii: R1, which is 31.94mm, and R2, which is -31.94mm, indicating a concave surface. The Back Focal Length (BFL) is 22.47mm, and both the Inner and Outer Radius are 0mm. The lens is made from n-SF5 Schott, a high-quality material known for its excellent optical properties.

This lens is designed for use within the visible light spectrum, making it suitable for a wide range of applications. Its double-convex design allows for efficient light gathering and focusing, making it an ideal choice for various optical systems. The lens's VIS-EXT coating enhances its light transmission capabilities, further boosting its performance in visual applications.