Fluidic Lens of Floating Water Using Intermediate Hydrophilic Layer Based on Electrowetting

Author

Hyunhwan Choi ; Yong Hyub Won

Author_Institution

Dept. of Electr. Eng., Korea Inst. of Sci. of Technol., Daejeon, South Korea

Volume

25

Issue

18

fYear

2013

fDate

Sept.15, 2013

Firstpage

1829

Lastpage

1831

Abstract

This letter presents a liquid lens that uses an electrowetting principle while also employing a floating lens between actuating fluids. The lens shape is a double-sided curved surface, and it has powerful optical properties, showing a focal length of 12.6 mm with a 2 mm aperture diameter, and operating with a bias voltage 0-60 V. The lens has shown mechanical reliability sufficient to hold a floating shape that is robust against vibration of 200 RPM. An image seen through the lens can resolve an element better than 5.65 LP/mm on the USAF 1951 1x standard.

Keywords

hydrophilicity; lenses; optical images; reliability; vibrations; water; wetting; USAF 1951 1x standard; actuating fluids; bias voltage; double-sided curved surface; electrowetting; floating lens; floating shape; floating water; fluidic lens; focal aperture diameter; intermediate hydrophilic layer; lens shape; liquid lens; mechanical reliability; optical properties; size 2 mm; vibrations; voltage 0 V to 60 V; Dielectric materials; Electrodes; Lenses; Liquids; Optical device fabrication; Optical imaging; Shape; Adaptive lens; electrowetting; floating; fluidic;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2276944

Filename

6576149