A 3D-Sensor for intraoral metrology
- 1Faculty of Natural Sciences and Technology, HAWK University of Applied Sciences and Arts Hildesheim/Holzminden/Göttingen
- 2Institute of Optics, Information and Photonics, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
zheng [dot] yang [at] physik [dot] uni-erlangen [dot] de
We introduce a miniaturized optical 3D-sensor. One of its potentials is intraoral measurement of teeth. Several challenges have to be met: a) relative motion between the patient and the sensor is unavoidable. We solve this by a novel principle we call "Flying Triangulation". b) dental applications require a measuring uncertainty of less than 20 µm in x, y, z, and a depth of field of about 15mm. Both requirements contradict each other. We solve this by a novel kind of pattern generation and encoding. We demonstrate a working model of the sensor that fully satisfies the specifications for dental applications.
@inproceedings{dgao110-p19,
title = {A 3D-Sensor for intraoral metrology},
author = {Zheng Yang, Wei Xie, Oliver Arold, Ondrej Hybl, Peter Vogt, Klaus Bobey, Svenja Ettl, Gerd Häusler},
booktitle = {DGaO-Proceedings, 110. Jahrestagung},
year = {2009},
publisher = {Deutsche Gesellschaft für angewandte Optik e.V.},
issn = {1614-8436},
note = {Poster P19}
}
110. Annual Conference of the DGaO · Brescia · 2009