Optical focusing feature of single element in 128&#215;128 elements electrically controllable cylindrical liquid crystal lens array

Hui Li; Kan Liu; Xinyu Zhang; Tianxu Zhang; Xubang Shen

doi:10.3788/COL20100803.0329

Journals >Chinese Optics Letters >Volume 8 >Issue 3 >Page 329 > Article

Chinese Optics Letters
Vol. 8, Issue 3, 329 (2010)

Optical focusing feature of single element in 128×128 elements electrically controllable cylindrical liquid crystal lens array

Hui Li^1、2, Kan Liu^1、2, Xinyu Zhang^1、2、3, Tianxu Zhang^1、2, and Xubang Shen^1、2

Author Affiliations

¹Institute for Pattern Recognition and Artificial Intelligence, Huazhong University of Science and Technology, Wuhan 430074, China

²National Laboratory for Multi-Spectral Information Processing Technology, Huazhong University of Science and Technology, Wuhan 430074, China

³Wuhan National Laboratory for Optoelectronics, Wuhan 430074, China

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DOI: 10.3788/COL20100803.0329 Cite this Article Set citation alerts

Hui Li, Kan Liu, Xinyu Zhang, Tianxu Zhang, Xubang Shen. Optical focusing feature of single element in 128×128 elements electrically controllable cylindrical liquid crystal lens array[J]. Chinese Optics Letters, 2010, 8(3): 329 Copy Citation Text

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Abstract

A 128×128 elements cylindrical liquid crystal (LC) lens array with electrically controllable focal length is proposed. The cylindrical LC lens array uses transparent indium tin oxide (ITO) films as electrode, avoiding to affect the optical path operating in the voltage-off status. As the top electrode of the cylindrical LC lens array contacts with LC, the operation voltage root-mean-square (RMS) amplitude can be as low as 1.4 V and the response time is about 20-30 ms. The special optical focusing feature of the cylindrical LC lens array is got. And the focal length of this array is about 60-450 \mu m.

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