This is a Plano-Concave lens, type N-BK7, with a diameter of 22.4 mm, sourced from Qioptiq Photonics. The lens is currently in stock and available for purchase through their website. The lens features an EFL (Effective Focal Length) of -100mm at a wavelength of 588nm.
The lens is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties. The lens has a plano-concave geometry, meaning one side is flat while the other is curved inward. The curvature of the concave side is defined by a radius of -52.33 mm.
The lens has a thickness of 1.5 mm at its center. It does not have any inner or outer radii, indicating a simple plano-concave design. The lens is coated with Qio HP Nbar ARHS-YAG on both the front and back sides, providing anti-reflective properties.
This lens is a spherical lens, meaning it has the same curvature throughout its surface. It is unmounted, offering flexibility for users to mount it according to their specific requirements.