Mathematical expressions using fringe projections for transparent objects

Wei Hung Su, Chau Jern Cheng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A setup using fringe projection techniques to perform 3D profile measurements for transparent objects is presented. The related mathematical equations are derived as well. A fringe pattern is illuminated onto the transparent object. Fringes passing through the inspected object are then projected onto a screen. A CCD camera is employed to record the transmitted fringes on the screen. Fringe on the screen are deformed by the refractive index and the surface structure, and therefore are desirable to describe the shape of the inspected sample.

Original languageEnglish
Title of host publicationPhotonic Fiber and Crystal Devices
Subtitle of host publicationAdvances in Materials and Innovations in Device Applications XI
EditorsShizhuo Yin, Ruyan Guo
PublisherSPIE
ISBN (Electronic)9781510612211
DOIs
Publication statusPublished - 2017
EventPhotonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI 2017 - San Diego, United States
Duration: 2017 Aug 62017 Aug 7

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10382
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherPhotonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI 2017
Country/TerritoryUnited States
CitySan Diego
Period2017/08/062017/08/07

Keywords

  • fringe analysis
  • fringe projection
  • optical inspection
  • projected fringe profilometry
  • ray tracing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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