63-561 40mm Dia. x 120mm FL; Uncoated; Double-Convex Lens

The 63-561 is a high-quality spherical lens, boasting a double-convex design and a substantial 40mm diameter. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available directly from their website. The lens's focal length is an impressive 120mm, making it suitable for a wide range of applications that require precise optical manipulation.

The lens is crafted from the esteemed material, n-BK7 Schott, a borosilicate glass known for its excellent optical properties. This material ensures high light transmission and low dispersion, making it an ideal choice for various optical systems. The lens is uncoated, offering a cost-effective solution for applications where coating is not a necessity.

The geometric specifications of the lens are equally impressive. The edge thickness measures 3.72mm, while the center thickness is 7mm, providing robustness and durability. The effective focal length (EFL) is 120mm, and the back focal length (BFL) is 117.67mm. The first radius of curvature (R1) is 122.83mm, and the second radius (R2) is -122.83mm, indicating the double-convex design.