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A new type of liquid-crystal cylindrical microlens arrays with nonuniform microcoil electrodes
Author(s): Mingce Chen; Zheng Li; Qi Shao; Xinjie Han; Zhaowei Xin; Dong Wei; Xinyu Zhang; Haiwei Wang; Changsheng Xie
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Paper Abstract

In this paper, we propose a new type of liquid-crystal cylindrical microlens arrays (LCCMAs) with nonuniform microcoil electrodes (NMEs). The key functional microstructure of the LCCMAs includes two ~500-μm-thick glass substrates with indium-tin-oxide (ITO) films for shaping the top and the bottom electrodes and a thin LC layer with a typical thickness of 20μm. The ITO film of the upper substrate is etched into the shape of nonuniform microcoil by traditional lithography process and inductively coupled plasma etching (ICP etching). By simply adjusting voltage signal applied on the NMEs, the LCCMAs exhibit relatively sharp point spread functions (PSFs) at the focal plane of different spectral beams including red (635-671nm), green (501-561nm) and blue (430-473nm) lasers at relatively low signal voltages (even less than 3Vrms).

Paper Details

Date Published: 1 March 2019
PDF: 6 pages
Proc. SPIE 10941, Emerging Liquid Crystal Technologies XIV, 109410U (1 March 2019); doi: 10.1117/12.2507741
Show Author Affiliations
Mingce Chen, Huazhong Univ. of Science and Technology (China)
Zheng Li, Huazhong Univ. of Science and Technology (China)
Qi Shao, Huazhong Univ. of Science and Technology (China)
Xinjie Han, Huazhong Univ. of Science and Technology (China)
Zhaowei Xin, Huazhong Univ. of Science and Technology (China)
Dong Wei, Huazhong Univ. of Science and Technology (China)
Xinyu Zhang, Huazhong Univ. of Science and Technology (China)
Haiwei Wang, Huazhong Univ. of Science and Technology (China)
Changsheng Xie, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 10941:
Emerging Liquid Crystal Technologies XIV
Liang-Chy Chien, Editor(s)

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