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Live-mirror shape correction technology operated through modified electroactive polymer actuators
Author(s): K. Thetpraphi; G. Moretto; J. R. Kuhn; P. J. Cottinet; M. Q. Le; D. Audigier; L. Petit; J. F. Capsal
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Paper 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.

Paper Details

Date Published: 13 March 2019
PDF: 7 pages
Proc. SPIE 10966, Electroactive Polymer Actuators and Devices (EAPAD) XXI, 109662U (13 March 2019); doi: 10.1117/12.2514229
Show Author Affiliations
K. Thetpraphi, Univ. Lyon, INSA-Lyon, LGEF (France)
G. Moretto, Ctr. de Recherche Astrophysique de Lyon (France)
J. R. Kuhn, Univ. of Hawaii Institute for Astronomy (United States)
P. J. Cottinet, Univ. Lyon, INSA-Lyon, LGEF (France)
M. Q. Le, Univ. Lyon, INSA-Lyon, LGEF (France)
D. Audigier, Univ. Lyon, INSA-Lyon, LGEF (France)
L. Petit, Univ. Lyon, INSA-Lyon, LGEF (France)
J. F. Capsal, Univ. Lyon, INSA-Lyon, LGEF (France)

Published in SPIE Proceedings Vol. 10966:
Electroactive Polymer Actuators and Devices (EAPAD) XXI
Yoseph Bar-Cohen, Editor(s)

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