The 38-573-INK is a Plano-Convex lens, sourced from Edmund Optics, with a diameter of 9.0mm and a focal length of 25mm. This lens is made of the high-quality material N-BK7 Schott, ensuring excellent optical performance. The lens features a YAG-BBAR coating on both the front and back surfaces, optimized for the wavelength range of 500-1100nm. This coating enhances the lens's durability and resistance to environmental factors, making it suitable for various applications. The lens's geometry includes an edge thickness of 1.19mm and a center thickness of 2.0mm. The inner and outer radii are 0, and the back focal length is 23.68mm. This lens is inked, indicating that it has been marked for identification or tracking purposes.