Research on virtual pinhole parameters optimization in laser differential confocal theta microscope

Xiangye Zhao, Yun Wang, Lirong Qiu, Weiqian Zhao, Ke Zhu

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

1 Citation (Scopus)

Abstract

Differential confocal theta microscope (DCTM) which has high axial resolution, provides a feasible tool for precise measurement. The virtual pinhole detection technology can significantly simplify the optical path alignment, and enhance imaging quality of the system by optimizing virtual pinhole parameters. Based on the imaging principle of DCTM, a new method for automatic adjusting and optimizing virtual pinhole parameters is presented according to the position and size of the imaging spot, which eliminate the influence caused by the deformation and shifting of imaging spot and ensure the axial resolution. The theoretical analyses and experimental results show that optimizing virtual pinhole parameters can guarantee the axial resolution and signal-to-noise ratio as well as effectively improve the imaging quality of DCTM.

Original languageEnglish
Title of host publicationInternational Conference on Optical and Photonics Engineering, icOPEN 2016
EditorsAnand Krishna Asundi
PublisherSPIE
ISBN (Electronic)9781510610019
DOIs
Publication statusPublished - 2017
EventInternational Conference on Optical and Photonics Engineering, icOPEN 2016 - Chengdu, China
Duration: 26 Sept 201630 Sept 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10250
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Conference on Optical and Photonics Engineering, icOPEN 2016
Country/TerritoryChina
CityChengdu
Period26/09/1630/09/16

Keywords

  • 3D imaging
  • Differential confocal theta microscope
  • Precision measurement
  • Virtual pinhole

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