Applications of a novel phase-shift method using a computer-controlled polarization mechanism

Guan-chang Jin; Nai-Keng Bao; Po Sheun Chung

doi:10.1117/12.173565

1 August 1994 Applications of a novel phase-shift method using a computer-controlled polarization mechanism

Guan-chang Jin, Nai-Keng Bao, Po Sheun Chung

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Optical Engineering, Vol. 33, Issue 8, (August 1994). https://doi.org/10.1117/12.173565

Abstract

A new computer-controlled phase-shifting apparatus based on polarization techniques is developed. This apparatus changes phase only by rotating a polarizer using a precise step motor and a specially designed decelerator. The precision of this method can be higher than other methods because of the accurate control of the rotating angle. Four applications of this technique to optical interlerometry and 3-D shape measurements are presented.

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Guan-chang Jin, Nai-Keng Bao, and Po Sheun Chung "Applications of a novel phase-shift method using a computer-controlled polarization mechanism," Optical Engineering 33(8), (1 August 1994). https://doi.org/10.1117/12.173565

Published: 1 August 1994

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