This is a G052206000 12.7 mm diameter N-BK7 mounted double-convex lens, with a focal length (EFL) of 20mm, sourced from Qioptiq Photonics. The lens is uncoated, which means it does not have any additional layers to enhance light transmission or protect the surface.
The lens is spherical in shape, with a base shape of a circle. The geometry of the lens includes a diameter of 12.7 mm, a thickness at the edge of 0.9 mm, and a thickness at the center of 3 mm. The radii of curvature are 20.097 mm for the first surface and -20.097 mm for the second surface. The lens does not have any inner or outer radius.
The lens is made of N-BK7, a type of glass commonly used in optical applications due to its excellent optical properties. The wavelength for this lens is 587.6 nm.
This lens is in stock and available for purchase on the Qioptiq Photonics website. For more information, please refer to the provided weblink.