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13 March 2019 Live-mirror shape correction technology operated through modified electroactive polymer actuators
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Abstract
The novelty of correcting optical mirrors surface in a few microns of the desired precisely-shaped are supported by electroactive polymer actuating/sensing devices. The P(VDF-TrFE-CFE) terpolymer with the 10 % DINP plasticizer has field as EAP which showed 10 times higher in longitudinal strain with respect to the neat one and the increase of total axial strain from 0.4 % - 3.0 % with the multilayer sample 1 to 8 layers respectively. The actuator stack was integrated to the mirror in order to prove the concept of adaptive mirror which is able to reach to goal of a few micron mirror deformation.
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K. Thetpraphi, G. Moretto, J. R. Kuhn, P. J. Cottinet, M. Q. Le, D. Audigier, L. Petit, and J. F. Capsal "Live-mirror shape correction technology operated through modified electroactive polymer actuators", Proc. SPIE 10966, Electroactive Polymer Actuators and Devices (EAPAD) XXI, 109662U (13 March 2019); doi: 10.1117/12.2514229; https://doi.org/10.1117/12.2514229
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