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Proceedings Paper

Zoom system without moving element by using two liquid crystal lenses with spherical electrode
Author(s): Ren-Kai Yang; Chia-Ping Lin; Guo-Dung J. Su
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Paper Abstract

A traditional zoom system is composed of several elements moving relatively toward other components to achieve zooming. Unlike tradition system, an electrically control zoom system with liquid crystal (LC) lenses is demonstrated in this paper. To achieve zooming, we apply two LC lenses whose optical power is controlled by voltage to replace two moving lenses in traditional zoom system. The mechanism of zoom system is to use two LC lenses to form a simple zoom system. We found that with such spherical electrodes, we could operate LC lens at voltage range from 31V to 53 V for 3X tunability in optical power. For each LC lens, we use concave spherical electrode which provide lower operating voltage and great tunability in optical power, respectively. For such operating voltage and compact size, this zoom system with zoom ratio approximate 3:1 could be applied to mobile phone, camera and other applications.

Paper Details

Date Published: 23 August 2017
PDF: 9 pages
Proc. SPIE 10375, Current Developments in Lens Design and Optical Engineering XVIII, 103750K (23 August 2017); doi: 10.1117/12.2274019
Show Author Affiliations
Ren-Kai Yang, National Taiwan Univ. (Taiwan)
Chia-Ping Lin, National Taiwan Univ. (Taiwan)
Guo-Dung J. Su, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 10375:
Current Developments in Lens Design and Optical Engineering XVIII
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

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