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Automatic characterization method for the quasi-planar freeform surface by atmospheric pressure plasma processing

  • Harbin Institute of Technology

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

Abstract

With the vertical fluctuation of small amplitudes, the quasi-planar freeform surface is essentially a plane superposed by microstructure with several micrometers. In practical, it's widely used to improve the optical performance. However, its form accuracy highly depends on the processing iteration with all kinds of computer controlled optical surfacing (CCOS) technology. This paper presents an automatic characterization method for the quasi-planar freeform surface by atmospheric pressure plasma processing (APPP). Firstly, the principle of APPP and fabrication of the typical quasi-planar freeform surface are introduced. Based on this, an automatic characterization method is developed to eliminate the misalignment between the measured and designed surface, which serves for the form error evaluation and removal generation of next processing step. Finally, the simulation and experiment were conducted to demonstrate the effectiveness of the proposed method, which indicates that it can provide the reliable feedback for the fabrication of quasi-planar freeform surface.

Original languageEnglish
Title of host publicationSeventh Asia Pacific Conference on Optics Manufacture, APCOM 2021
EditorsJiubin Tan, Xiangang Luo, Ming Huang, Lingbao Kong, Dawei Zhang
PublisherSPIE
ISBN (Electronic)9781510652088
DOIs
StatePublished - 2022
Event7th Asia Pacific Conference on Optics Manufacture, APCOM 2021 - Shanghai, China
Duration: 28 Oct 202131 Oct 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12166
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference7th Asia Pacific Conference on Optics Manufacture, APCOM 2021
Country/TerritoryChina
CityShanghai
Period28/10/2131/10/21

Keywords

  • Atmospheric pressure plasma processing
  • Characterization method
  • Quasi-planar freeform surface

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