Abstract
A method for null-testing fast convex aspheric optical surfaces is presented. The method consists of using a cylindrical screen with a set of lines drawn on it in such a way that its image, which is formed by reflection on a perfect surface, yields a perfect square grid. Departures from this geometry are due to imperfections of the surface, allowing one to know if the surface is close to the design shape. Tests conducted with a full hemisphere and with the parabolic surface of a lens show the feasibility of the method. Numerical simulations show that it is possible to detect surface departures as small as 5 µm.
© 2000 Optical Society of America
Full Article | PDF ArticleMore Like This
Manuel Campos-García, Víctor Iván Moreno-Oliva, Rufino Díaz-Uribe, Fermín Granados-Agustín, and Agustín Santiago-Alvarado
Appl. Opt. 50(19) 3101-3109 (2011)
M. Campos-García, R. Bolado-Gómez, and R. Díaz-Uribe
Appl. Opt. 47(6) 849-859 (2008)
Daniel Aguirre-Aguirre, Manuel Campos-García, Rufino Díaz-Uribe, and Brenda Villalobos-Mendoza
Appl. Opt. 57(35) 10230-10238 (2018)