Biomimetic small scale variable focal length lens unit using synthetic elastomer actuators

Baek-chul Kim; Jinah Chung; Y. Lee; Jae-Do Nam; Hyungpil Moon; Hyouk Ryeol Choi; J. C. Koo

doi:10.1117/12.880721

29 March 2011 Biomimetic small scale variable focal length lens unit using synthetic elastomer actuators

Baek-chul Kim, Jinah Chung, Y. Lee, Jae-Do Nam, Hyungpil Moon, Hyouk Ryeol Choi, J. C. Koo

Proceedings Volume 7976, Electroactive Polymer Actuators and Devices (EAPAD) 2011; 79762Z (2011) https://doi.org/10.1117/12.880721
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

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.

Citation Download Citation

Baek-chul Kim, Jinah Chung, Y. Lee, Jae-Do Nam, Hyungpil Moon, Hyouk Ryeol Choi, and J. C. Koo "Biomimetic small scale variable focal length lens unit using synthetic elastomer actuators", Proc. SPIE 7976, Electroactive Polymer Actuators and Devices (EAPAD) 2011, 79762Z (29 March 2011); https://doi.org/10.1117/12.880721

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