Liquid pressure varifocus lens using a fibrous actuator

Ryoichi Kuwano; Yasuhiro Mizutani; Tsuyoshi Tokunaga; Yukitoshi Otani

doi:10.1117/12.689330

19 October 2006 Liquid pressure varifocus lens using a fibrous actuator

Ryoichi Kuwano, Yasuhiro Mizutani, Tsuyoshi Tokunaga, Yukitoshi Otani

Proceedings Volume 6374, Optomechatronic Actuators, Manipulation, and Systems Control; 63740I (2006) https://doi.org/10.1117/12.689330
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

A liquid pressure varifocus lens has been developed that employs a fibrous actuator which contracts on application of a current or on heating. The focal length of the convex lens can be varied continuously between 90 mm to 300 mm. The shape of the lens changes smoothly and the construction of the lens is extremely simply. It requires a low electric power to drive it. In this study, the optical characteristics and the response time of the liquid pressure varifocus lens were measured. The time constant of the fibrous actuator was 1.0 s for the rise time when electric power was initially supplied. A fibrous actuator having a length of 370 mm was used, and a voltage of 9.5 V was applied.

Citation Download Citation

Ryoichi Kuwano, Yasuhiro Mizutani, Tsuyoshi Tokunaga, and Yukitoshi Otani "Liquid pressure varifocus lens using a fibrous actuator", Proc. SPIE 6374, Optomechatronic Actuators, Manipulation, and Systems Control, 63740I (19 October 2006); https://doi.org/10.1117/12.689330

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