This is a 31.5 mm diameter Plano-Convex lens, manufactured by Qioptiq Photonics, featuring a focal length of 80mm. The lens is made of N-BK7, a popular optical glass from Schott, known for its excellent optical properties and versatility.
The lens has a plano-convex geometry, meaning one side is flat (plano) and the other side is curved (convex). The curvature of the convex side is defined by a radius of 41.568mm. The lens has a thickness of 1.9mm at the edge and 5mm at the center.
The lens is coated with Qio AL RALVIS AOI 45 on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission, making it suitable for various applications.
The lens is mounted, making it ready for immediate use in your optical system. The web link provided leads to the product page on Qioptiq's website, where you can find more information and check the current availability of the lens.