Deflectometry for ophthalmic optics testing and the impact of test surface orientation

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

Abstract

The effects of the misalignment of a test surface in a deflectometry system were explored. A Stewart Platform Hexapod stage was used to create the intentional misalignment, rotate the test surface position around the X and Y axes as well as displace their Z location. The measured surface maps were analyzed in coefficients of a fit of the surface map to the Zernike coefficients. The Zernike term results were adopted to show the relationship between the induced pose changes and the reconstructed surface map. Such an understanding of the errors in location and orientation and deflectometry measurement results would be beneficial in the future measurement of ophthalmic optics with a deflectometry system.

Original languageEnglish (US)
Title of host publicationApplied Optical Metrology V
EditorsErik Novak, Christopher C. Wilcox
PublisherSPIE
ISBN (Electronic)9781510665583
DOIs
StatePublished - 2023
EventApplied Optical Metrology V 2023 - San Diego, United States
Duration: Aug 22 2023Aug 23 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12672

Conference

ConferenceApplied Optical Metrology V 2023
Country/TerritoryUnited States
CitySan Diego
Period8/22/238/23/23

Keywords

  • Stewart Platform
  • deflectometry
  • misalignment
  • ophthalmology
  • optical testing

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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