This is a Ge-px-38.1-500 38.1 mm Dia. Germanium Plano-Convex Lens, a high-quality optical component sourced from Alkor Technologies. The lens is designed with a spherical geometry, featuring a plano-convex shape and a circular base. The lens has a diameter of 38.1 mm and a thickness that varies from 2 mm at the edge to 2.1 mm at the center.
The lens is uncoated and has an effective focal length (EFL) of 500mm. The inner radius of the lens is 0, while the outer radius is also 0, indicating a plano surface. The lens is made of germanium burnett, a material known for its excellent optical properties, particularly in the infrared region of the spectrum. The lens is designed to operate at a wavelength of 10600 nm.
For more information about this lens, including its availability and pricing, please refer to the vendor's website at http://www.alkor.net/germanium_lenses.html. The link has been verified and the lens is currently in stock.