Short-periodic measuring of great retardations with a modified Senarmont-method

Authors: Kaufmann, Siegfried1; Zeitner, Uwe D.2

Source: Optik – International Journal for Light and Electron Optics, Volume 114, Number 8, November 2003 , pp. 360-364(5)

Publisher: Urban & Fischer

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Abstract:

Up to now measurements of retardations and of birefringence on flexible, anisotropic media (fibres, films) are done contactlessly, automatically and on-line. For new manufacturing processes of such media first of all fast (short-periodic) and free of false colours measurements are required for very large retardations. A simultaneous combination of the multicolour-Senarmont-method with the discrete Fourier-Analysis (DFA) is presented in this paper.

Document Type: Research Article

DOI: http://dx.doi.org/10.1078/0030-4026-00273

Affiliations: 1: Thüringisches Institut für Textil- und Kunststoff-Forschung, 07407 Rudolstadt, Germany 2: Fraunhofer Institut für Angewandte Optik und Feinmechanik IOF, 07745 Jena, Germany

Publication date: November 1, 2003

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