EPJ Web of Conferences
Volume 48, 2013OAM 2012 – Optics and Measurement International Conference
|Number of page(s)||4|
|Published online||03 May 2013|
Technique for 3D shape reconstruction of spherical and aspheric surfaces using deflectometric principle
Czech Technical University in Prague,
Faculty of Civil Engineering, Department of Physics, Thakurova 7, 16629
We provide a description and analysis of a deflectometric technique for 3D measurements of optically smooth surfaces. It is presented that a surface reconstruction problem leads to a theoretical description by a nonlinear partial differential equation. Then, a surface shape can be calculated by solution of a derived equation. The presented method is noncontact and no reference surface is needed as in interferometry.
© Owned by the authors, published by EDP Sciences, 2013
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