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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