在轮廓仪中用于多投影的不同变化方向的光折变莫伊拉西样图案

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI:10.1117/12.2026277

G. N. Oliveira, M. E. D. de Oliveira, J. Dias, P. A. D. dos Santos

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引用次数: 0

摘要

在本文中，我们描述了全息干涉加热以产生具有两个或多个变化方向的动态光折变莫伊氏样图案。在实验中，我们用两个节距稍有不同的正弦光栅叠加得到条纹变化的各个方向。作为动态全息介质的Bi12TiO20 (BTO)晶体样品的体积中产生了这些动态的莫伊兰样图案。傅里叶变换轮廓法是将两个或多个具有不同方向变化的莫尔条纹图案同时或不同时投影到物体表面上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Photorefractive moiré-like patterns with different variation directions for multi-projection in profilometer applications

In the present paper we describe the holographic interferometric beating to produce dynamic photorefractive moiré-like patterns with two or more variation directions. It has been experimentally obtained by the superposition of two sinusoidal gratings with slightly different pitches for each direction of fringe variation obtained. These dynamic moiré-like patterns are induced in the volume of the Bi12TiO20 (BTO) crystal sample used as dynamic holographic medium. The Fourier transform profilometry method is applied using two or more moiré fringe patterns with different direction of variations, simultaneously or not, projected onto an object surface.

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Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications

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