Focus Tunable Device Actuator based on Ionic Polymer Metal Composite
Date Issued
2015
Date
2015
Author(s)
Zhang, Yi-Wei
Abstract
IPMC (Ionic Polymer Metallic Composite) is a kind of electroactive polymer (EAP) which can be used as an actuator due to its low driving voltage, light weight and small volume. In this paper, the Ag-IPMC with complex fabrication method can be further developed which enhance the performance of IPMC. Compared with traditional Pt-IPMC, the surface resistance of Ag-IPMC dropped 90%. Furthermore, optimized Ag-IPMC not only enhances the response speed by two times, but also decreased the driving voltage by 20%. We applied the optimized Ag-IPMC as the lens actuator for curvilinear microlens array. It weighs 0.1g and the radius of curvature of microlens is 0.26 mm with focal length of 577 μm. We used the 3D printer to make a module and spring stable system combined with Ag-IPMC and microlens array. We also used modeling software, ANSYS Workbench, to confirm the effect of spring system. Finally, we successfully drive the lens system in 200 μm stroke under 2.5V driving voltage within 0.7 second, and the resonant frequency is approximately 500 Hz.
Subjects
Electroactive polymer
Ag-IPMC actuator
ionic solution
Type
thesis
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ntu-104-R02941071-1.pdf
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