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Proceedings Paper

Electrically-tunable optical zoom system by using liquid crystal lenses
Author(s): Yi-Hsin Lin; Ming-Syuan Chen; Hung-Chun Lin
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Paper Abstract

An electrically-tunable optical zoom system using liquid crystal (LC) lenses is demonstrated. The mechanism of the optical zoom system is to use two lenses and a camera system to achieve focusing and zooming function. In this paper, we analyzed the imaging conditions and the magnification of the optical zoom system. The relation between the focusing properties of LC lenses and zoom ratio of the optical zoom system is also discussed. The electrically-tunable optical zoom system using two LC lenses has high zoom ratio (~7.9:1 to ~5.5:1), short system length (<10 cm) and the object can be zoomed in or zoomed out continuously at the objective distance of infinity to 10 cm. The potential applications are cell phones, cameras, telescopes and pico projectors.

Paper Details

Date Published: 6 February 2012
PDF: 9 pages
Proc. SPIE 8280, Advances in Display Technologies II, 82800Q (6 February 2012); doi: 10.1117/12.912063
Show Author Affiliations
Yi-Hsin Lin, National Chiao Tung Univ. (Taiwan)
Ming-Syuan Chen, National Chiao Tung Univ. (Taiwan)
Hung-Chun Lin, National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 8280:
Advances in Display Technologies II
Liang-Chy Chien; Sin-Doo Lee; Ming Hsien Wu, Editor(s)

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