Improvement of Hole-Patterned Electrode Liquid Crystal Lens by Coplanar Inner Ring Electrode
| Autor: | Yung-Hsiang Hsu, Bo-Yu Chen, Chia Rong Sheu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry 02 engineering and technology Disclination Atomic and Molecular Physics and Optics Line (electrical engineering) Electronic Optical and Magnetic Materials law.invention Lens (optics) 020210 optoelectronics & photonics Liquid crystal law Electric field Electrode 0202 electrical engineering electronic engineering information engineering Optoelectronics Electrical and Electronic Engineering business Voltage Electronic circuit |
| Zdroj: | IEEE Photonics Technology Letters. 31:1627-1630 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/lpt.2019.2939268 |
| Popis: | In this study, the electro-optical performance of coplanar inner floating ring (CIFR)–hole-patterned electrode (with 1 mm aperture size) liquid crystal (LC) lens (HPELCL) was examined. Various experimental conditions, such as driving frequencies and cell structures, affecting the performance of the proposed lenses were analyzed and discussed via an electric circuit model. The CIFR electrodes successfully reduced the applied voltages with low driving frequencies and provided a larger lens power than conventional HPELCL. The floating ring electrode generated an induced electric field to contribute to the original fringe electric field by the hole-patterned electrode. The combined electric field yielded additional LC reorientations to achieve the same lens performance with decreased electric voltages. The proposed LC lens exhibited easy fabrication, tunable focuses, free of disclination line, and low power consumption. The experimental results were illustrated with the electric circuit model. |
| Databáze: | OpenAIRE |
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