White-light interferometer without mechanical scanning

doi:10.1016/j.optlaseng.2019.105800

2020-01-01

Pavel Pavlíček *

Erik Mikeska

DOI：10.1016/j.optlaseng.2019.105800

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摘要

En 中文

We introduce an optical 3D sensor that can measure the shape of objects with rough surface. The proposed sensor is based on white-light interferometry but it does not require a mechanical movement of the measured object relative to the measuring device. The output of a fiber optical interferometer is used as the light source for the measuring interferometer. The built-in fiber stretcher changes the optical path difference and replaces the mechanical movement. A focus tunable lens is a part of the imaging system. This lens secures that the measured part of the surface is imaged sharply onto the camera during the measurement process.

Keyword:

White-light interferometry

Fiber stretcher

Electrically tunable lens

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期刊

Optics and Lasers in Engineering

IF:

3.7

论文数:

7.3K

被引数:

1.7W

机构

Palacky University Olomouc

学者数:

7.1K

论文数: 5.7K

被引数: 62

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