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

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

Fingerprint

Optical glass
Polishing
Lenses
Glass
Surface properties
Productivity
Imaging techniques

Keywords

  • Chemical action assistance
  • Grinding
  • Ultra-precision

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Ultra-precision grinding of optical glass lenses with La-doped CeO 2 slurry . / Kakinuma, Yasuhiro; Konuma, Yoshiki; Fukuta, Masahiko; Tanaka, Katsutoshi.

In: CIRP Annals, 01.01.2019.

Research output: Contribution to journalArticle

Kakinuma, Yasuhiro ; Konuma, Yoshiki ; Fukuta, Masahiko ; Tanaka, Katsutoshi. / Ultra-precision grinding of optical glass lenses with La-doped CeO 2 slurry In: CIRP Annals. 2019.
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