This is a high-quality double-convex lens from the renowned optical components manufacturer, Edmund Optics. The lens, identified as 89-246, has a diameter of 15mm and a focal length of 15mm, making it a versatile choice for various optical applications.
The lens is made from n-SF11 Schott, a high-index glass with excellent optical properties. It features a YAG-BBAR coating on both the front and back surfaces, which enhances its performance in the 500-1100nm wavelength range. This coating reduces reflection, increases transmission, and improves overall system efficiency.
The geometry of the lens includes an edge thickness of 1.93mm and a center thickness of 4.5mm. The lens's effective focal length (EFL) is 15mm, and the back focal length (BFL) is 13.68mm. The radii of curvature for the first and second surfaces are 22.51mm and -22.51mm, respectively.
This lens is a great option for those seeking a reliable, high-performance optical component. It's available directly from Edmund Optics and is currently in stock, ensuring quick delivery for your optical project needs.