Evaluation of error introduced by in-plane system using spherical wavefronts

Amalia Garcia Martinez; Ramon Rodriguez-Vera; J. A. Rayas; J. H. Puga

doi:10.1117/12.437100

14 August 2001 Evaluation of error introduced by in-plane system using spherical wavefronts

Amalia Garcia Martinez, Ramon Rodriguez-Vera, J. A. Rayas, J. H. Puga

Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437100
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina

Abstract

Commonly, in-plane sensitive arrangements use tow symmetrical collimated wavefronts for object surface illumination. However, this is a limitation when large objects surface have to be analyzed. In this case spherical illumination is needed. Using this kind of optical set-up, the present work shows results of fracture measuring by using moire and speckle interferometric methods. Non- collimated symmetrical dual-beams, having a sensitivity vector varying with the position are performed. These methods are capable of detecting in-plane and out-of-plane deformations due to the use of divergent beams. It is calculated the error to each component of the sensitivity vector. Experimental result of fracture measurements are shown.

Citation Download Citation

Amalia Garcia Martinez, Ramon Rodriguez-Vera, J. A. Rayas, and J. H. Puga "Evaluation of error introduced by in-plane system using spherical wavefronts", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437100

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KEYWORDS

Spherical lenses

Moire patterns

Wavefronts

Speckle

Interferometry

Collimation

Mirrors

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