Three-dimensional shape measurement using digital shearography

Christopher T. Griffen; Y.Y. Hung; Fang Chen

doi:10.1117/12.212649

23 June 1995 Three-dimensional shape measurement using digital shearography

Christopher T. Griffen, Y.Y. Hung, Fang Chen

Proceedings Volume 2545, Interferometry VII: Applications; (1995) https://doi.org/10.1117/12.212649
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

This paper presents a method for obtaining the shape of an object using digital shearography. The technique makes use of two types of phase shifting. One provides a nonuniform phase shift which is related to the shape of the object. The other is independent of the shape of the object and utilizes uniform phase shifting. Theory together with experimental verification are demonstrated.

Citation Download Citation

Christopher T. Griffen, Y.Y. Hung, and Fang Chen "Three-dimensional shape measurement using digital shearography", Proc. SPIE 2545, Interferometry VII: Applications, (23 June 1995); https://doi.org/10.1117/12.212649

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