Chinese Optics Letters, 2021, 19 (10): 102201, Published Online: Jul. 23, 2021  

Multi-focused droplet lens array inspired by movable-type printing technology Download: 545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 straightforward, cost-effective scheme for fabricating multi-focus droplet lens arrays is proposed. Mini lenses can be rapidly produced by dripping liquid-state polydimethylsiloxane droplets on the square glass substrate. The focal length of the lenses can be precisely controlled by adjusting the mass of the droplet. A group of prepared mini lenses can be flexibly assembled in a three-dimensional printed mount. The lenses are tightly packed together, ensuring a high filling factor of the lens array. The lens array consisting of the mini lenses with a proper combination of focal length can capture images of interests at different depth.

Bo Dai, Zhengmeng Zhou, Yan Long, Mingliang Pan, Zeyuan Song, Dawei Zhang. Multi-focused droplet lens array inspired by movable-type printing technology[J]. Chinese Optics Letters, 2021, 19(10): 102201.

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