Tunable dielectric liquid lens on flexible substrate.
We demonstrate the fabrication of a tunable-focus dielectric liquid lens (DLL) on a flexible substrate made of polydimethylsiloxane, which was wrapped onto a goggle surface to show its functionality. As a positive meniscus converging lens, the DLL has the focal length variable from 14.2 to 6.3 mm in 1.3 s when the driving voltage increases to 125 Vrms. The resolving power of the DLL is 17.95 line pairs per mm. The DLL on a flexible, curvilinear surface is promising for expanded field of view covered as well as in reconfigurable optical systems.
Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA.
Yen-Sheng
YS
Lu
Department of Electrical and Computer Engineering, Wayne State University, Detroit, Michigan 48202, USA.
Hongen
H
Tu
Department of Electrical and Computer Engineering, Wayne State University, Detroit, Michigan 48202, USA.
Yong
Y
Xu
Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA ; Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA ; Materials Science Program, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA ; McPherson Eye Research Institute, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA.
Hongrui
H
Jiang