Hexagonal liquid crystal lens array for 3D endoscopy

Amir Hassanfiroozi; Yi-Pai Huang; Bahram Javidi; Han Ping D. Shieh

doi:10.1364/OE.23.000971

Hexagonal liquid crystal lens array for 3D endoscopy

Amir Hassanfiroozi, Yi-Pai Huang, Bahram Javidi, Han Ping D. Shieh

Department of Photonics

Research output: Contribution to journal › Article › peer-review

70 Scopus citations

Abstract

A liquid crystal lens array with a hexagonal arrangement is investigated experimentally. The uniqueness of this study exists in the fact that using convex-ring electrode provides a smooth and controllable applied potential profile across the aperture to manage the phase profile. We observed considerable differences between flat electrode and convex-ring electrode; in particular the lens focal length is variable in a wider range from 2.5cm to infinity. This study presents several noteworthy characteristics such as low driving voltage; 30 μm cell gap and the lens is electrically switchable between 2D/3D modes. We demonstrate a hexagonal LC-lens array for capturing 3D images by using single sensor using integral imaging.

Original language	English
Pages (from-to)	971-981
Number of pages	11
Journal	Optics Express
Volume	23
Issue number	2
DOIs	https://doi.org/10.1364/OE.23.000971
State	Published - 26 Jan 2015

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Hexagonal liquid crystal lens array for 3D endoscopy

Abstract

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