Two opto-electronic processes for measuring plano-cylindrical lens curvature radii

This paper describes two opto-electronic processes useful for measuring curvature radii of optical components. The two methods start from the fact that, within the geometrical optics approximation, a pencil of rays can be marked electronically and thus located during its propagation through the optical system. The two methods have proved to be useful for accurately measuring plano-cylindrical lens curvature radius.