A method for calculating the geometrical Ronchi pattern of any aspheric mirror with the point source at any point along the optical axis is described. If a mirror gives a Ronchi pattern that is different from the one calculated, the deviations of this mirror from its ideal shape can be found.
© 1965 Optical Society of America
Original Manuscript: March 21, 1965
Published: November 1, 1965
Daniel Malacara, "Geometrical Ronchi Test of Aspherical Mirrors," Appl. Opt. 4, 1371-1374 (1965)