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Proceedings Paper

Multi-channel compact optical zoom module by using microlenses
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Paper Abstract

In this paper, we propose a multi-channel imaging system, which combines the principles of an insect’s compound eye and optical zoom. We use the distance between two aspherical lenses to achieve zoom effect. In order to shrink the thickness of the system, we use the multi-channel structure which consists of curved micolens array. With this architecture, we can achieve the same effect like lens group. Each partial image passes through each channel separately and is stitched together at the image sensor. In our design, the thickness is 6.57 mm (wide), 6.25 mm (mid), 6.4 mm (tele) and the effective focal length is 2.2 mm( wide), 2.97 mm (mid), 4.04 mm (tele). Zoom ratio is close to 2 times. The size of image sensor is 6 mm in diameter. Due to the advance in microlens fabrication of microlens, this design has the potential to bed used inside mobile phone camera in future.

Paper Details

Date Published: 3 September 2015
PDF: 20 pages
Proc. SPIE 9580, Zoom Lenses V, 95800K (3 September 2015); doi: 10.1117/12.2186954
Show Author Affiliations
Wei-Hsiang Liao, National Taiwan Univ. (Taiwan)
Guo-Dung J. Su, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 9580:
Zoom Lenses V
Ellis Betensky; Takanori Yamanashi, Editor(s)

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