Vector formulation for Ronchi shear surface fitting

David J. Fischer; H. Philip Stahl

doi:10.1117/12.140774

5 February 1993 Vector formulation for Ronchi shear surface fitting

David J. Fischer, H. Philip Stahl

Proceedings Volume 1755, Interferometry: Techniques and Analysis; (1993) https://doi.org/10.1117/12.140774
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Ronchi interferometry is an optical testing technique similar to shearing interferometry. A coherent wavefront is interfered with a sheared form of itself by placing a periodic grating at, or near, the focus of an optical system. The resultant interference pattern contains information about the wavefront's slope in a direction perpendicular to the grating structure. The wavefront can be reconstructed from two orthogonal slope data sets via the process of sampling, ordering, and fitting. This paper develops a linear-algebra vector notation model of the interferogram sampling and fitting process.

Citation Download Citation

David J. Fischer and H. Philip Stahl "Vector formulation for Ronchi shear surface fitting", Proc. SPIE 1755, Interferometry: Techniques and Analysis, (5 February 1993); https://doi.org/10.1117/12.140774

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