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Proceedings Paper

Measuring the local radii of the curvature of an aspheric surface using two interferometric methods
Author(s): Fermin S. Granados-Agustin; Fausto Escobar-Romero; J. Daniel Sacramento-Solano; Alejandro Cornejo-Rodriguez
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Paper Abstract

Two experimental arrangements for measuring the local radii of curvature of an aspherical surface will be presented, together with a comparison between the experimental and theoretical values obtained. One of this experimental arrangement provides an average value of the radii of curvature in a subaperture with a ring shape. With the other method the measurements are done point by point over on a contour of the surfaces. The theoretical values for the local radii are calculate from the annular subapertures method testing an aspherical surface; also we be shown the advantage and limitations of these proposals.

Paper Details

Date Published: 26 February 2004
PDF: 10 pages
Proc. SPIE 5252, Optical Fabrication, Testing, and Metrology, (26 February 2004); doi: 10.1117/12.513436
Show Author Affiliations
Fermin S. Granados-Agustin, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)
Fausto Escobar-Romero, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)
J. Daniel Sacramento-Solano, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)
Alejandro Cornejo-Rodriguez, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)


Published in SPIE Proceedings Vol. 5252:
Optical Fabrication, Testing, and Metrology
Roland Geyl; David Rimmer; Lingli Wang, Editor(s)

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