Journal
APPLIED OPTICS
Volume 60, Issue 10, Pages 2898-2901Publisher
OPTICAL SOC AMER
DOI: 10.1364/AO.423339
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Funding
- Chosun University (2020)
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In this study, a vision chromatic confocal sensor was proposed and experimentally verified for monitoring the location of a measured point. By utilizing a geometrical phase lens to induce chromatic aberration, the system demonstrated good performance in distance sensing and monitoring of measured points. The measuring range was approximately 10 mm with a repeatability of 0.4 µm when a 75 mm focal length geometrical phase lens was used.
A vison chromatic confocal sensor used to monitor the location ofa measured point is proposed and experimentally verified. To induce chromatic aberration of the sensor, a geometrical phase lens is adopted and is also used as a beam splitter. Near the geometrical phase lens, a focused beam is used for the chromatic confocal sensor, and a diverging beam is used for imaging of the specimen. In the experiment, the performance of the proposed system was verified with regard to distance sensing and the capability of monitoring the measured points. The measuring range was approximately 10 mm, and the repeatability was 0.4 mu M when a geometrical phase lens with a 75 mm focal length was used. (C) 2021 Optical Society of America
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