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Proceedings Paper

Biomimetic small scale variable focal length lens unit using synthetic elastomer actuators
Author(s): Baek-chul Kim; Jinah Chung; Y. Lee; Jae-Do Nam; Hyungpil Moon; Hyouk Ryeol Choi; J. C. Koo
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Paper Abstract

Having a combination of a gel-like soft lens, ligaments, and the Ciliary muscles, the human eyes are effectively working for various focal lengths without a complicated group of lens. The simple and compact but effective optical system should deserve numerous attentions from various technical field especially portable information technology device industry. Noting the limited physical space of those deivces, demanding shock durability, and massive volume productivity, the present paper proposes a biomimetic optical lens unit that is organized with a circular silicone lens and an annular dielectric polymer actuator. Unlike the traditional optical lens mechanism that normally acquires a focus by changing its focal distance with moving lens or focal plane. the proposed optical system changes its lens thickness using a annulary connected polymer actuator in order to get image focuses. The proposed biomimetic lens system ensures high shock durability, compact physical dimensions, fast actuations, simple manufacturing process, and low production cost.

Paper Details

Date Published: 29 March 2011
PDF: 5 pages
Proc. SPIE 7976, Electroactive Polymer Actuators and Devices (EAPAD) 2011, 79762Z (29 March 2011); doi: 10.1117/12.880721
Show Author Affiliations
Baek-chul Kim, Sungkyunkwan Univ. (Korea, Republic of)
Jinah Chung, Sungkyunkwan Univ. (Korea, Republic of)
Y. Lee, Sungkyunkwan Univ. (Korea, Republic of)
Jae-Do Nam, Sungkyunkwan Univ. (Korea, Republic of)
Hyungpil Moon, Sungkyunkwan Univ. (Korea, Republic of)
Hyouk Ryeol Choi, Sungkyunkwan Univ. (Korea, Republic of)
J. C. Koo, Sungkyunkwan Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 7976:
Electroactive Polymer Actuators and Devices (EAPAD) 2011
Yoseph Bar-Cohen; Federico Carpi, Editor(s)

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