Testing aspheric surfaces using multiple annular interferograms

Mauro Melozzi; Luis Pezzati; Alessandro Mazzoni

doi:10.1117/12.133344

1 May 1993 Testing aspheric surfaces using multiple annular interferograms

Mauro Melozzi, Luis Pezzati, Alessandro Mazzoni

Author Affiliations +

Optical Engineering, Vol. 32, Issue 5, (May 1993). https://doi.org/10.1117/12.133344

Abstract

We present a technique for interferometrically testing aspheric surfaces without the use of compensating elements. The method consists of recording successive overlapping phase maps from a set of annular interferograms of an aspheric surface, obtained using a conventional phase-shifting interferometer and a micropositioning translator stage. These maps are then sewn together with a suitable algorithm we developed, and the whole surface error is recovered. Experimental results are shown to be in good agreement with the null lens test performed for comparison.

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Mauro Melozzi, Luis Pezzati, and Alessandro Mazzoni "Testing aspheric surfaces using multiple annular interferograms," Optical Engineering 32(5), (1 May 1993). https://doi.org/10.1117/12.133344

Published: 1 May 1993

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