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Proceedings Paper

Measurement of phase objects by the use of color phase-shifting technique
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Paper Abstract

A simple technique for wavefront measurement is presented. This technique is based on the use of a computer display (LCD monitor) to generate color fringe patterns, which are imaged by a single-CCD color camera; whereas a phase object is placed in the ray path for imaging. The ray de ections distort the image of the pattern. By measuring this distortion, the gradients of the phase change caused by the object can be obtained. For the evaluation of the acquired fringe patterns, we use a classical phase-shifting technique with three fringe patterns encoded in a single color image displayed by the monitor; therefore, this proposed technique allows for real-time object shape measurement. Experiments are presented to demonstrate the success of this technique.

Paper Details

Date Published: 19 September 2013
PDF: 6 pages
Proc. SPIE 8867, Infrared Remote Sensing and Instrumentation XXI, 886710 (19 September 2013); doi: 10.1117/12.2025202
Show Author Affiliations
Oscar E. Castillo, Univ. de Guadalajara (Mexico)
Ricardo Legarda-Sáenz, Univ. Autonoma de Yucatán (Mexico)
Jorge L. Flores, Univ. de Guadalajara (Mexico)
G. Garcia-Torales, Univ. de Guadalajara (Mexico)

Published in SPIE Proceedings Vol. 8867:
Infrared Remote Sensing and Instrumentation XXI
Marija Strojnik Scholl; Gonzalo Páez, Editor(s)

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