THE 2-MINUTE RULE FOR OPTICAL GERMANIUM LENS

Plano-convex Ge lenses are flat on 1 facet and convex on the other. These lenses Use a favourable focal length, and will often be useful for light-weight collimation.Germanium helps make a superb electromagnetic interference (EMI) shielding material and can protect IR techniques on planes from other close by indicators that might render the process