Multi-channel compact optical zoom module by using microlenses

Wei-Hsiang Liao; Guo-Dung J. Su

doi:10.1117/12.2186954

3 September 2015 Multi-channel compact optical zoom module by using microlenses

Wei-Hsiang Liao, Guo-Dung J. Su

Proceedings Volume 9580, Zoom Lenses V; 95800K (2015) https://doi.org/10.1117/12.2186954
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

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.

Citation Download Citation

Wei-Hsiang Liao and Guo-Dung J. Su "Multi-channel compact optical zoom module by using microlenses", Proc. SPIE 9580, Zoom Lenses V, 95800K (3 September 2015); https://doi.org/10.1117/12.2186954

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