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Measurement of Distortion Using the Moire Interferometry
Optics
Volume 4, Issue 3-1, June 2015, Pages: 14-17
Received: Mar. 30, 2015; Accepted: Jul. 12, 2015; Published: Jul. 25, 2015
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Authors
K. Wenzel, Department of Mechatronics, Optics and Information Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Budapest, Hungary
Gy. Abraham, Department of Mechatronics, Optics and Information Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Budapest, Hungary
P. Tamas, Department of Mechatronics, Optics and Information Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Budapest, Hungary
A. Urbin, Department of Mechatronics, Optics and Information Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Budapest, Hungary
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Abstract
Image forming lens systemsdo not provide perfect images. Lens abberations can be detected with complex optical ray-tracing. A single aberration in lenses, the distortion, can be detected at the image plane with optical mapping. Therefore moiré interferometry can be adapted to detect and measure distortion. This method is adaptable by serial testing of the universal measuring cameras, projection cameras, photogrammetrical cameras, etc. The distortion of the whole image plane can be represented on one moiré image. This can be useful if the distortion is not rotationally symmetrical for example because of errors of assembly. The distortion of 1 µm regarding the focal plane can be measured by using the moiré method presented in this paper.
Keywords
Lens Aberrations, Moire Method, Distortion
To cite this article
K. Wenzel, Gy. Abraham, P. Tamas, A. Urbin, Measurement of Distortion Using the Moire Interferometry, Optics. Special Issue: Optical Techniques for Deformation, Structure and Shape Evaluation. Vol. 4, No. 3-1, 2015, pp. 14-17. doi: 10.11648/j.optics.s.2015040301.14
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