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Proceedings Paper

Wide spectrum electrically driven tunable focus adaptive liquid crystal lens
Author(s): Hui Li; Kan Liu; Xinyu Zhang; Tianxu Zhang; Xubang Shen
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Paper Abstract

A liquid crystal lens with wide spectrum electrical tunable focal length is proposed. The top substrate coated indium tin oxide film with a hole of 2.0mm diameter is manipulated by techniques mainly consists of conventional ultraviolet lithography and hydrochloric acid etching. The bottom substrate glass coated ITO acts as another electrode. The nonuniform electric field appeared in the LC layer produces a gradient distribution of refractive index. The LC cell shows an optical lens property. The focal length of the LC lens is function of applied voltage, covering approximately 20mm- 480mm. In the focal length range, the LC lens maintains high optical quality. The transmissivity of the LC lens is above 80% from 500nm to 1100nm.

Paper Details

Date Published: 30 October 2009
PDF: 5 pages
Proc. SPIE 7494, MIPPR 2009: Multispectral Image Acquisition and Processing, 749406 (30 October 2009); doi: 10.1117/12.832345
Show Author Affiliations
Hui Li, Huazhong Univ. of Science and Technology (China)
Kan Liu, Huazhong Univ. of Science and Technology (China)
Xinyu Zhang, Huazhong Univ. of Science and Technology (China)
Wuhan National Lab. for Optoelectronics (China)
Tianxu Zhang, Huazhong Univ. of Science and Technology (China)
Xubang Shen, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7494:
MIPPR 2009: Multispectral Image Acquisition and Processing
Faxiong Zhang; Faxiong Zhang, Editor(s)

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