Paper
13 May 2010 Optical tomography based on phase-shifting schlieren deflectometry
Emmanuel Foumouo, Jean-Luc Dewandel, Luc Joannes, Didier Beghuin, Laurent Jacques, Philippe Antoine
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Abstract
We present a new optical tomography technique based on phase-shifting schlieren deflectometry. The principle is that of computerized tomography. The three-dimensional profile is reconstructed from the deflection angles of rays passing through the tested object. We have investigated optical phantoms chosen in view of the characterization of dendritic growth in a solidification process. Promising results have been obtained with a homogeneous sphere and a bundle of 200μm fibers. The deviation angles exceed two degrees with a variation of the refractive index ▵n=0.025.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Emmanuel Foumouo, Jean-Luc Dewandel, Luc Joannes, Didier Beghuin, Laurent Jacques, and Philippe Antoine "Optical tomography based on phase-shifting schlieren deflectometry", Proc. SPIE 7726, Optical Sensing and Detection, 77260U (13 May 2010); https://doi.org/10.1117/12.854063
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CITATIONS
Cited by 2 scholarly publications.
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KEYWORDS
Reconstruction algorithms

Refractive index

Tomography

Deflectometry

Optical fibers

Optical spheres

Optical tomography

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