Ultra-precision grinding of optical glass lenses with La-doped CeO 2 slurry

Yasuhiro Kakinuma, Yoshiki Konuma, Masahiko Fukuta, Katsutoshi Tanaka

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Higher accuracy and more efficient production of large aperture glass lenses is increasingly required for high-resolution imaging devices. These glass lenses are typically manufactured by both ultra-precision grinding and polishing. However, prolonged polishing deteriorates the lens shape accuracy and diminishes productivity. In order to reduce the required amount of polishing or even obtain a polish-free fine surface, chemical action-assisted ultra-precision grinding using La-doped CeO 2 slurry is proposed and its effectiveness is experimentally evaluated. The results show that the proposed grinding method successfully provides a high-quality surface comparable to a polished surface and results in five times higher productively than conventional grinding.

Original languageEnglish
JournalCIRP Annals
DOIs
Publication statusPublished - 2019 Jan 1

Keywords

  • Chemical action assistance
  • Grinding
  • Ultra-precision

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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