This is a Plano-Convex lens, type 49-896-INK, sourced from the renowned optical components vendor, Edmund Optics. The lens boasts a 9.0mm diameter and a focal length of 15.0mm, making it suitable for a wide range of optical applications.
The lens is crafted from the high-quality material, n-BK7 Schott, which is known for its excellent optical properties. The base shape of the lens is circular, and it features a front surface with a radius of curvature of 7.75mm and a back surface with a radius of curvature of infinite, given its planar nature.
The lens is coated with the EDM VIS-0 standard curve on both the front and back surfaces. This coating enhances its performance within the visible light spectrum, specifically between 425-675nm. The coating ensures high transmission and low reflection, making it ideal for use in imaging systems, beam shaping, and other applications where high-quality light transmission is crucial.
The lens has a thickness of 1.56mm at the edge and 3.0mm at the center. The back focal length is 13.02mm, and the effective focal length is 15.0mm. The lens is inked, indicating that it has been marked for identification or alignment purposes.