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Chin. Opt. Lett.
 Home  List of Issues    Issue 12 , Vol. 16 , 2018    10.3788/COL201816.122201

Rapid fabrication of mini droplet lens array with tunable focal length
Bo Dai, Huansi Wang, Qiao Xu, Zhenqing Li, Chunxian Tao, and Dawei Zhang
Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Laboratory of Modern Optical System, [University of Shanghai for Science and Technology], Shanghai 200093, China

Chin. Opt. Lett., 2018, 16(12): pp.122201

Topic:Optical design and fabrication
Keywords(OCIS Code): 220.0220  220.3630  

A rapid and cost-effective method for fabricating mini lens arrays is proposed. The lenses are made of silicone oil droplets and filled inside a polydimethylsiloxane (PDMS) elastomer. The lens arrays of different initial focal lengths and apertures can be fabricated by using the droplets of different volumes. Due to good elastic behavior of PDMS, the droplet lenses can be flexibly deformed, and the focal length and numerical aperture can be tuned by applying an external force on the PDMS elastomer. Furthermore, an apparatus for focal length tuning is designed and employed in the imaging system.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Posted online:2018/11/28

Get Citation: Bo Dai, Huansi Wang, Qiao Xu, Zhenqing Li, Chunxian Tao, and Dawei Zhang, "Rapid fabrication of mini droplet lens array with tunable focal length," Chin. Opt. Lett. 16(12), 122201(2018)

Note: The work was supported by the National Key Research and Development Program of China (No. 2016YFD0500603), the National Natural Science Foundation of China (Nos. 61601292 and 61775140), and the Shanghai Science and Technology Commission (Nos. 17060502500 and 17JC1400601).


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