When three-dimensional measurements are conducted with fringe projection, the quality of the grating used for the generation of the fringes is important. It has a direct influence on the achievable depth resolution in a given measurement setup. In the past, Ronchi gratings or gratings written in nematic liquid-crystal displays or in digital micromirror devices have been used. We report on the application of a reflective ferroelectric liquid-crystal-on-silicon display as the fringe-generating element in a setup based on a stereo microscope. With this device the depth resolution of measurements by use of phase-shifting algorithms can be significantly improved compared with the application of a Ronchi grating or a nematic liquid-crystal display.
%0 Journal Article
%1 Proll:03
%A Proll, Klaus-Peter
%A Nivet, Jean-Marc
%A Körner, Klaus
%A Tiziani, Hans J.
%D 2003
%I OSA
%J Appl. Opt.
%K 3dm ito reviewed
%N 10
%P 1773--1778
%R 10.1364/AO.42.001773
%T Microscopic three-dimensional topometry with ferroelectric liquid-crystal-on-silicon displays
%U http://ao.osa.org/abstract.cfm?URI=ao-42-10-1773
%V 42
%X When three-dimensional measurements are conducted with fringe projection, the quality of the grating used for the generation of the fringes is important. It has a direct influence on the achievable depth resolution in a given measurement setup. In the past, Ronchi gratings or gratings written in nematic liquid-crystal displays or in digital micromirror devices have been used. We report on the application of a reflective ferroelectric liquid-crystal-on-silicon display as the fringe-generating element in a setup based on a stereo microscope. With this device the depth resolution of measurements by use of phase-shifting algorithms can be significantly improved compared with the application of a Ronchi grating or a nematic liquid-crystal display.
@article{Proll:03,
abstract = {When three-dimensional measurements are conducted with fringe projection, the quality of the grating used for the generation of the fringes is important. It has a direct influence on the achievable depth resolution in a given measurement setup. In the past, Ronchi gratings or gratings written in nematic liquid-crystal displays or in digital micromirror devices have been used. We report on the application of a reflective ferroelectric liquid-crystal-on-silicon display as the fringe-generating element in a setup based on a stereo microscope. With this device the depth resolution of measurements by use of phase-shifting algorithms can be significantly improved compared with the application of a Ronchi grating or a nematic liquid-crystal display.},
added-at = {2019-05-08T13:51:45.000+0200},
author = {Proll, Klaus-Peter and Nivet, Jean-Marc and Körner, Klaus and Tiziani, Hans J.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2b258a5e80dee79377ab0ee0fbbaf1ed2/heidrunkempf},
doi = {10.1364/AO.42.001773},
interhash = {7f44dccb379b2b101b5a5a859ec1f8f8},
intrahash = {b258a5e80dee79377ab0ee0fbbaf1ed2},
journal = {Appl. Opt.},
keywords = {3dm ito reviewed},
month = apr,
number = 10,
pages = {1773--1778},
publisher = {OSA},
timestamp = {2019-05-08T11:51:45.000+0200},
title = {Microscopic three-dimensional topometry with ferroelectric liquid-crystal-on-silicon displays},
url = {http://ao.osa.org/abstract.cfm?URI=ao-42-10-1773},
volume = 42,
year = 2003
}
