Fermín GRANADOS-AGUSTÍN^*, J. Fausto ESCOBAR-ROMERO^† and Alejandro CORNEJO-RODRÍGUEZ^‡

Instituto Nacional de Astrofísica, Óptica y Electrónica, Apdo. Postal 51 and 216, Puebla C.P. 72000, Mexico

(Received June 4, 2003; Accepted December 1, 2003)

A parabolic surface is tested with spherical reference wavefronts, and with the analysis of partial annular zone interferograms. By means of a computer program, based on the subaperture annular information, complete information about the entire surface can be derived.

Key words: optical testing, optical fabrication

^*E-mail address: fermin@inaoep.mx
^†E-mail address: jescobar@susu.inaoep.mx
^‡E-mail address: acornejo@inaoep.mx