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8 March 2014 Autofocus fluid lens device construction and implementation of modified ionic polymer metal composite (IPMC) membrane actuators
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Abstract
The autofocus fluid lens device, as developed by Philips, is based on water/oil interfaces forming a spherical lens where the meniscus of the liquid can be switched by applying a high voltage to change from a convex to a concave divergent lens. In this work we construct a device to evaluate the performance of membrane actuators based on electro active polymers, in a design applicable for autofocus fluid lens applications. The membrane with a hole in the middle separates the oil phase from the electrolyte phase, forming a meniscus in the middle of the membrane between the oil and electrolyte. If the membrane actuator shows a certain force and displacement, the meniscus between oil and electrolyte changes form between concave and convex, applicable as a fluid lens. Ionic polymer metal composites (IPMCs) are applied in this work to investigate how the performance of the membrane actuator takes place in Milli-Q, certain electrolytes and in combination with an electrochemically deposited conducting polymer. The goal of this work is to investigate the extent of membrane displacement of IPMC actuators operating at a low voltage (±0.7 V), and the back relaxation phenomena of IPMC actuators.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rudolf Kiefer, Harti Kiveste, Andres Punning, Arko Kesküla, Tõnis Lulla, and Alvo Aabloo "Autofocus fluid lens device construction and implementation of modified ionic polymer metal composite (IPMC) membrane actuators", Proc. SPIE 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014, 905630 (8 March 2014); https://doi.org/10.1117/12.2044656
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