A Simple Optical Fiber-coupled Chromatic Confocal 3D Measurement System

  • Tao Liu
  • , Xiaofeng Tang
  • , Jiayi Wang
  • , Zhibin Wang
  • , Jiaqi Hu
  • , Ye Yuan
  • , Shuming Yang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Chromatic confocal measurement method can achieve accurate, efficient, and non-destructive three-dimensional measurement of almost any surface materials. At present, domestic research work in this area is mostly concentrated on theory and verification experiments, and there is a lack of relevant research on the design of an efficient integrated measurement system. This paper reports a simple optical fiber-coupled chromatic confocal three-dimensional measurement system, which uses a white-light confocal detection optical path and a wide-field optical path scheme. The system uses an aspheric lens to produce 1 mm axial chromatic aberration and realizes the combination of software and hardware. Through the measurement of step surface, MEMS, and glass thickness, it is shown that the built system is suitable for micron-level three-dimensional topography measurement of surfaces and thicknesses of transparent materials.

Original languageEnglish
Title of host publication2021 International Conference of Optical Imaging and Measurement, ICOIM 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages226-229
Number of pages4
ISBN (Electronic)9780738112121
DOIs
StatePublished - 27 Aug 2021
Event2021 International Conference of Optical Imaging and Measurement, ICOIM 2021 - Xi'an, China
Duration: 27 Aug 202129 Aug 2021

Publication series

Name2021 International Conference of Optical Imaging and Measurement, ICOIM 2021

Conference

Conference2021 International Conference of Optical Imaging and Measurement, ICOIM 2021
Country/TerritoryChina
CityXi'an
Period27/08/2129/08/21

Keywords

  • 3D measurement
  • Aspheric surface
  • Calibration
  • Chromatic Confocal
  • Film thickness

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