SBX040 25.4 mm Dia. x 500 mm FL; Uncoated; Double-Convex Lens

The SBX040 is a spherical lens with a base shape of a circle, featuring a double-convex design. This lens, sourced from MKS/Newport, has a diameter of 25.4 mm and a thickness at the edge of 3 mm, which gradually increases to a center thickness of 3.35 mm. The effective focal length (EFL) of this lens is 500 mm, making it suitable for applications requiring long focal lengths.

The lens's first radius of curvature (R1) is 458.46 mm, while the second radius (R2) is -458.46 mm, indicating a symmetrical, double-convex design. The back focal length (BFL) is 498.85 mm, and both the inner and outer radii are 0 mm, suggesting a uniform curvature throughout the lens.

The SBX040 is made from UVFS material with the Mal-1965 ID, optimized for use with a wavelength of 589 nm. Notably, this lens is uncoated, which may affect its performance in certain applications, particularly those requiring high transmission or resistance to environmental factors. However, uncoated lenses can be advantageous in applications where cost, simplicity, or specific optical properties are a priority.

For more information, including pricing and availability, please refer to the vendor's website at https://www.newport.com/f/uncoated-uvfs-bi-convex-lenses. The link has been verified and is currently in stock.