Separating Misalignment From Misfigure In Interferograms On Off-Axis Aspheres

Gregory C. Dente

doi:10.1117/12.936359

15 November 1983 Separating Misalignment From Misfigure In Interferograms On Off-Axis Aspheres

Gregory C. Dente

Proceedings Volume 0429, Precision Surface Metrology; (1983) https://doi.org/10.1117/12.936359
Event: 27th Annual Technical Symposium, 1983, San Diego, United States

Abstract

Two procedures are presented that allow for unambiguous separation of misalignment from misfigure in off-axis asphere interferograms. In the first method the coma observed is used to locate the element, while in the second method the element is located by minimizing the observed mean-square wavefront error. With either procedure, the misalignment-induced aberrations can be calculated and subtracted from the interferogram so that only true misfigure remains.

Citation Download Citation

Gregory C. Dente "Separating Misalignment From Misfigure In Interferograms On Off-Axis Aspheres", Proc. SPIE 0429, Precision Surface Metrology, (15 November 1983); https://doi.org/10.1117/12.936359

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