32-489 25mm Dia. x 25mm FL; Uncoated; Double-Convex Lens

The 32-489 is a 25mm diameter, 25mm focal length spherical lens, specifically designed with a double-convex shape. This lens, sourced from Edmund Optics, is uncoated, offering users a versatile and cost-effective solution for their optical needs.

The lens's base shape is circular, with a diameter of 25mm, making it suitable for a wide range of applications. The edge thickness measures 2.9mm, while the center thickness is 8mm, providing excellent optical performance. The effective focal length (EFL) is 25mm, and the first radius of curvature (R1) is 31.94mm, while the second radius (R2) is -31.94mm. The back focal length (BFL) is 22.47mm, and both the inner and outer radii are 0mm.

The lens is made from n-SF5 Schott, a high-quality optical glass known for its excellent transmission properties and chemical resistance. It is designed to work optimally with a wavelength of 587.6nm. The lens's shape is spherical, and it does not have any coating, which can be beneficial in certain applications where coating might introduce unwanted reflections or interfere with the optical path.