Angle-Tunable Liquid Wedge Prism Driven by Electrowetting

Atsushi Takei, Eiji Iwase, Kiyoshi Matsumoto, Isao Shimoyama, Kazunori Hoshino

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1537-1542
Number of pages6
JournalJournal of Microelectromechanical Systems
Issue number6
Publication statusPublished - 2007 Dec
Externally publishedYes


  • Electrostatic devices
  • microelectromechanical devices
  • optical device fabrication

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering


Dive into the research topics of 'Angle-Tunable Liquid Wedge Prism Driven by Electrowetting'. Together they form a unique fingerprint.

Cite this