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http://dx.doi.org/10.5407/jksv.2020.18.1.038

Tandem Light Deflector Operated by Electrowetting  

Song, Hyeonseok (Department of Mechanical Engineering, Myongji University)
Won, Jung Min (Wonik IPS)
Chung, Sang Kug (Department of Mechanical Engineering, Myongji University)
Publication Information
Journal of the Korean Society of Visualization / v.18, no.1, 2020 , pp. 38-43 More about this Journal
Abstract
This paper presents a new type of electrowetting driven tandem light deflector for high performance optical application. To steer an incident light, the proposed light deflector deforms the fluid interface using electrowetting actuation. The performance of the light deflector was experimentally verified by using a prototype of the proposed light deflector. Single and tandem light deflectors were separately prepared using microfabrication processes. The optical tests of the deflectors were conducted using a laser light. The proposed tandem light deflector obtained a 45° beam steering angle with a 5.3° deflection angle while a single light deflector was required for a 10.9° deflection angle to obtain the same beam steering angle. The proposed tandem light deflector with high optical capability can be applied to various optical applications from camera modules in mobile smart devices to advanced future optical systems.
Keywords
Optical device; Light deflector; Liquid prism; Electrowetting;
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