A low voltage deformable mirror using ionic-polymer metal composite

Hsiang-Chun Wei; Guo-Dung John Su

doi:10.1117/12.860300

12 August 2010 A low voltage deformable mirror using ionic-polymer metal composite

Hsiang-Chun Wei, Guo-Dung John Su

Proceedings Volume 7788, Polymer Optics Design, Fabrication, and Materials; 77880C (2010) https://doi.org/10.1117/12.860300
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

Deformable mirror is a crucial component of adaptive optics. It can be used to vary the optical power of an optical image system, such as auto-focus and optical zoom function. An electrostatic type MEMS deformable mirror used in an optical image system has been promoted recently. However, high voltage in the range of hundreds volts is a serious concern for electrostatic type MEMS deformable mirror. Ionic-polymer metal composite (IPMC) is a polymer actuator with the advantage of large deformation under low actuation voltage. It is a sandwich structure composed of two metal electrodes and a layer of polymer film. The hydrated cation inside the polymer film moves toward the cathode. Because of the migration of ions and water inside the film, volume expansion and contraction induce the deformation of IPMC. In this paper, we design the IPMC type deformable mirror that is simulated by finite element method and then demonstrate its focus-varying function. It requires less than one volt to achieve over 100 diopters.

Citation Download Citation

Hsiang-Chun Wei and Guo-Dung John Su "A low voltage deformable mirror using ionic-polymer metal composite", Proc. SPIE 7788, Polymer Optics Design, Fabrication, and Materials, 77880C (12 August 2010); https://doi.org/10.1117/12.860300

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