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Proceedings Paper

Light field imaging based on electrically tunable nematic liquid crystal micro lens array
Author(s): Hui Li; Jing Peng; Fan Pan; Yuntao Wu; Yanduo Zhang; Xiaolin Xie
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Paper Abstract

A light field imaging system based on electrically tunable nematic liquid crystal (LC)-micro lens array (MLA) is proposed. In this system, a LC-MLA is utilized to replace the conventional glass MLA. The LC-MLA has an advantage of electrically controlled without any mechanical movements. This feature could extend depth of field (DOF) of the LCMLA. In the measurements, the relationship between the external applied voltage and the focal length of the LC-MLA is discussed. The point spread function (PSF) of the LC-MLA is given. An interesting experiment for measuring the direction of the incident light is presented. Those measurements show that the proposed LC-MLA has greatly potential in light field imaging system.

Paper Details

Date Published: 20 February 2018
PDF: 7 pages
Proc. SPIE 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 106974O (20 February 2018); doi: 10.1117/12.2309934
Show Author Affiliations
Hui Li, Wuhan Institute of Technology (China)
Huazhong Univ. of Science and Technology (China)
Jing Peng, Wuhan Institute of Technology (China)
Fan Pan, Wuhan Institute of Technology (China)
Yuntao Wu, Wuhan Institute of Technology (China)
Yanduo Zhang, Wuhan Institute of Technology (China)
Xiaolin Xie, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 10697:
Fourth Seminar on Novel Optoelectronic Detection Technology and Application
Weiqi Jin; Ye Li, Editor(s)

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