Coherent two-beam interference fringe projection for highspeed three-dimensional shape measurements.

Abstract

Two-beam interference is a fundamental and well-understood approach to create Fizeau's interference fringes. With a Mach-Zehnder interferometer, we utilize these two-beam interference Fizeau fringes for three-dimensional (3D) shape measurements. By introducing an acousto-optical deflector the phase of the interference fringes can be shifted with a rate of… (More)
DOI: 10.1364/AO.52.002306

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