The KPX034AR.18 is a Plano-Convex Lens, a type of spherical lens, sourced from MKS/Newport. This lens, with a diameter of 6.35 mm, is designed for use in the infrared spectrum, specifically between 1000nm and 1550nm.
The lens features a plano-convex geometry, meaning one side is flat (plano) and the other is curved (convex). The thickness at the edge of the lens is 3mm, while the center thickness is slightly more at 3.098mm. The effective focal length (EFL) of this lens is 100mm, and the radius of curvature (R1) is 51.68mm. The back focal length (BFL) is 97.95mm, and the inner radius is 0mm.
The KPX034AR.18 is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and relatively low cost. The lens is coated with New AR-18, a broadband anti-reflective coating that reduces surface reflections and increases transmission in the spectral region of 1000-1550nm.
This lens is currently in stock and available for purchase on the Newport website. The link to the product page is provided for your convenience.