Chinese Optics Letters, 2018, 16 (12): 122201, Published Online: Dec. 7, 2018  

Rapid fabrication of mini droplet lens array with tunable focal length Download: 578次

Author Affiliations
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
Abstract
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.

Bo Dai, Huansi Wang, Qiao Xu, Zhenqing Li, Chunxian Tao, Dawei Zhang. Rapid fabrication of mini droplet lens array with tunable focal length[J]. Chinese Optics Letters, 2018, 16(12): 122201.

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