Fabrication of an antireflective structure on a lenticular lens

Katsuyuki Yatagawa, Masato Nakamura, Masaki Ono, Jun Taniguchi, Shin Hiwasa

研究成果: Conference contribution査読

抄録

In our previous study, various lenses with antireflective structures (ARSs) were fabricated by ultraviolet nanoimprint lithography (UV-NIL) and a thin flexible replica mold, which had ARSs. However, in the case of a lens with a large uneven surface such a lenticular lens, it is difficult to transfer an ARS. In this paper, the improvement of the transfer process for a lenticular lens with an ARS is investigated. A master mold of ARSs was fabricated by irradiating glassy carbon with an oxygen ion beam. A flexible replica mold with ARSs was transferred from the ARS master mold by UV-NIL. In this case, the thickness of the flexible replica mold was 210 µm. A lenticular lens with the reverse shape was also transferred from the original lenticular lens by UV-NIL. To add an ARS to the lenticular lens with the reverse shape, it was covered with a flexible replica mold coated with a UV-curable resin. In addition, the lenticular lens was placed on the back side of the flexible replica mold to contact the lens curve properly. Afterwards, the setting samples were pressed with a roll press and simultaneously UV-cured. After this roll press method was carried out, a lenticular lens with the reverse shape and an ARS was obtained. Using this mold, a lenticular lens with an ARS was replicated by UV-NIL and the reverse-shape mold with an ARS.

本文言語English
ホスト出版物のタイトルJSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing, LEMP 2020
出版社American Society of Mechanical Engineers
ISBN(電子版)9780791883624
DOI
出版ステータスPublished - 2020
イベントJSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing, LEMP 2020 - Virtual, Online
継続期間: 3 9月 2020 → …

出版物シリーズ

名前JSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing, LEMP 2020

Conference

ConferenceJSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing, LEMP 2020
CityVirtual, Online
Period3/09/20 → …

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