Retrace error for the measurement of a long-radius optic

Sen Han; Erik Novak

doi:10.1117/12.354906

19 July 1999 Retrace error for the measurement of a long-radius optic

Sen Han, Erik Novak

Proceedings Volume 3749, 18th Congress of the International Commission for Optics; (1999) https://doi.org/10.1117/12.354906
Event: ICO XVIII 18th Congress of the International Commission for Optics, 1999, San Francisco, CA, United States

Abstract

The error caused by nonzero fringe pattern in a phase shifting interferometer is `harmful' to testing a long radius optic. In this paper, with the help of a concept of retrace error the error is analyzed through the combination of experiments with simulated calculations, and more sensitive elements are found in system alignment, so that the effect of the misalignment of optical elements on the retrace error is reduced to minimum.

Citation Download Citation

Sen Han and Erik Novak "Retrace error for the measurement of a long-radius optic", Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); https://doi.org/10.1117/12.354906

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