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  • International Optical Design Conference and Optical Fabrication and Testing
  • OSA Technical Digest (CD) (Optica Publishing Group, 2010),
  • paper OThA3
  • https://doi.org/10.1364/OFT.2010.OThA3

Nulling Fizeau Interferometer for Aspheric Surface Measurements

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Abstract

Sub-Nyquist interferometry offers a way to bypass fringe density limitations but has several restrictions. In this paper we discuss a new method of measurements which simplifies alignment and alleviates most phase unwrapping and retrace errors.

© 2010 OSA, SPIE

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