The Effect of Wettability of Nickel Mold Insert on the Surface Quality of Molded Microlenses

Namsuk Lee, Su Dong Moon, Shinill Kang, Suho Ahn

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

In micromolding of microlens array, it is important to prepare a mold insert of superb quality, which contains the microcavity of lens shape, because the geometrical quality of the mold insert defines the final quality of the molded micro-optics. In the present study, the electroforming process was used to make the metallic micro-mold insert for micro-molding of microlens array. The wettability property of the fabricated mold isnert was examined by measuring the contact angle of the polymer in the pliable state on the mold insert. Microlenses were compression-molded with the fabricated mold insert. The effects of the molding temperature and wettability property on the replication quality of the molded lenses were analyzed experimentally.

Original languageEnglish
Pages (from-to)290-294
Number of pages5
JournalOptical Review
Volume10
Issue number4
DOIs
Publication statusPublished - 2003

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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