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Proceedings Paper

Moire measurements using a panoramic annular lens
Author(s): John A. Gilbert; Donald R. Matthys; David L. Lehner
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Paper Abstract

This paper demonstrates that a panoramic annular lens (PAL) can be used to record moiré fringes corresponding to the displacement of a grating of constant pitch fixed to a cavity wall. Definitions and parameters used to describe the imaging characteristics of the PAL are combined with the mapping function of the lens to develop analytical relationships sufficient to predict moiré fringe loci. Experimental results verify these analytical arguments. The paper also includes discussions of the panoramic annular lens, radial metrology, and potential applications of the panoramic moiré method.

Paper Details

Date Published: 1 December 1991
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Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.57489
Show Author Affiliations
John A. Gilbert, Univ. of Alabama in Huntsville (United States)
Donald R. Matthys, Marquette Univ. (United States)
David L. Lehner, Univ. of Alabama in Huntsville (United States)


Published in SPIE Proceedings Vol. 1554:
Second International Conference on Photomechanics and Speckle Metrology
Fu-Pen Chiang; Fu-Pen Chiang, Editor(s)

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