Phase detection deflectometry: an industrial solution for three-dimensional form measurement of aspheric and spheric surfaces

摘要

Abstract: Angenieux has developed a device providing a fast, accurate, 3-D analysis of a large range of aspherical and spherical surfaces and wavefronts, from diamond turned IR components to molded or polished lenses and up to large astronomical mirrors. Measurements are achieved without the need for compensating tooling such as null-lenses or holograms. !5