This is a mounted double-convex lens from Qioptiq Photonics, designed for use within the wavelength range of 725-1050nm. The lens has a base shape of a circle and is constructed from N-BK7 Schott glass, a popular material for its high refractive index and low dispersion.
The lens has a diameter of 22.4mm and a thickness of 2.4mm at the edge, with a center thickness of 3mm. The effective focal length (EFL) of this lens is 200mm. The front and back surfaces of the lens have a broadband anti-reflection coating (BBAR), specifically the Qio Bbar Arb2nirnbk7 coating, which enhances transmission and reduces surface reflections.
The lens features two radii of curvature: the first (R1) is 209.83mm, and the second (R2) is -209.83mm. The lens does not have an inner radius, and the outer radius is also 0mm. This specific lens is mounted, making it ready for immediate use in optical systems.
For more information, including pricing and availability, please refer to the vendor's website at https://www.qioptiq-shop.com/en/Precision-Optics/Singlets/Symmetric-Convex-Lenses/Symmetric-convex-lenses-mounted.html.