Title :
Angle-Tunable Liquid Wedge Prism Driven by Electrowetting
Author :
Takei, Atsushi ; Iwase, Eiji ; Hoshino, Kazunori ; Matsumoto, Kiyoshi ; Shimoyama, Isao
Author_Institution :
Tokyo Univ., Tokyo
Abstract :
We developed a tunable wedge prism by electrowetting actuation. Our prism can shift the field of view to the left or to the right and is useful for small cameras and endoscopes because its field of view can be changed without the need for large instruments. It consists of two plates that face each other, and a liquid is sandwiched between them. The liquid and plates form a wedge when the angle between the plates is changed. We used electrowetting to change the angle between the plates. The wedge prism is small because the liquid driven by electrowetting works as a prism. In addition, the prism produces a clear field of view because its optical flatness is determined by the flatness of the plates.
Keywords :
electrostatic devices; micro-optics; optical fabrication; optical prisms; angle-tunable liquid wedge prism; electrostatic devices; electrowetting actuation; microelectromechanical devices; optical device fabrication; optical flatness; Cameras; Electrostatics; Endoscopes; Instruments; Lenses; Magnetic forces; Microelectromechanical devices; Optical device fabrication; Optical devices; Resonant frequency; Electrostatic devices; microelectromechanical devices; optical device fabrication;
Journal_Title :
Microelectromechanical Systems, Journal of
DOI :
10.1109/JMEMS.2007.906074
