title: A semiautomatic method for interpreting shearing interferograms.
abstract: We describe a system for testing mirrors and lenses which uses a lateral shearing interferometer and laser light source, and in which data are recorded and processed digitally to obtain a description of the test wavefront in terms of a polynomial function, from which the shape of the test mirror may be computed. Precision of the system is about 0.1lambda. It represents a step in the development of a completely automatic testing procedure.
authors.forename: D
authors.initials: D
authors.lastname: Dutton
authors.forename: A
authors.initials: A
authors.lastname: Cornejo
authors.forename: M
authors.initials: M
authors.lastname: Latta