A 3D-Sensor for intraoral metrology
- 1Fakultät Naturwissenschaften und Technik, HAWK Hochschule für angewandte Wissenschaft und Kunst Hildesheim/Holzminden/Göttingen
- 2Institut für Optik, Information und Photonik, Friedrich-Alexander-Universität Erlangen-Nürnberg
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{yang2009p19,
author = {Yang, Zheng and Xie, Wei and Arold, Oliver and Hybl, Ondrej and Vogt, Peter and Bobey, Klaus and Ettl, Svenja and Häusler, Gerd},
title = {{A 3D-Sensor for intraoral metrology}},
booktitle = {DGaO-Proceedings 2009},
series = {DGaO-Proceedings},
eventtitle = {110. Jahrestagung der DGaO},
eventdate = {2009-06-02/2009-06-05},
venue = {Brescia},
publisher = {Deutsche Gesellschaft für angewandte Optik e.V.},
year = {2009},
pages = {P19},
url = {https://dgao-proceedings.de/paper/110-p19}
}
110. Jahrestagung der DGaO · Brescia · 2009