This is a Plano-Convex lens, type 88-823-INK, sourced from Edmund Optics. The lens has a circular base shape with a diameter of 10.0mm and a thickness of 1.71mm at the edge, increasing to 3.0mm at the center. The effective focal length (EFL) of the lens is 20.0mm, making it suitable for a variety of optical applications.
The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and high Abbe number. The front and back surfaces of the lens are coated with YAG-BBAR, a type of anti-reflection coating that operates within the 500-1100nm wavelength range. This coating reduces surface reflections, enhancing the overall transmission of the lens.
The lens is inked, which is a process that adds a marking or identifier to the lens. This can be useful for tracking and identifying lenses in a large inventory.
Please note that the inner and outer radii of the lens are 0.0mm, indicating that the lens is a simple Plano-Convex design without any additional curvature or features.
For more information, including pricing and availability, please refer to the vendor's website at https://www.edmundoptics.com/f/yag-bbar-coated-plano-convex-pcx-lenses/14895/.