The 69-339 is a Plano-Convex spherical lens, boasting a diameter of 12.0mm and a focal length of 30.0mm, specifically designed for use with a 405nm wavelength. This lens is sourced from the reputable vendor, Edmund Optics, and is currently in stock, as indicated by its weblink status.
The lens is made from the high-quality material, n-BK7 Schott, which is renowned for its excellent optical properties. The geometry of the lens includes a thickness of 1.79mm at the edge and 3.0mm at the center, with an effective focal length (EFL) of 30.0mm and a radius of curvature (R1) of 15.5mm. The back focal length (BFL) is 28.02mm, and both the inner and outer radii are 0.
The 69-339 lens features a front and back coating of EDM Las V-Coat 405, which is specifically designed for laser applications at the 405nm wavelength. This coating enhances the lens' performance and durability, making it an ideal choice for various optical applications.