Vari-focal liquid microlens array using electrically responsive fluid actuated by ring array patterned electrode

Miao Xu, Yating Liu, Senhao Li, Jing Li, Lyudi Zhang & Hongbo Lu
A transparent fluid dibutyl adipate (DBA) is suitable for fabricating the adaptive lens due to its unique deformation under a direct current (DC) electric field. In this report, a DBA liquid microlens array (LMA) with tunable focal length is demonstrated. A hydrophobic layer deposited in the ring-array patterns on the electrode induced the formation of the DBA liquid microdroplets array self-assembly. The electronegative DBA liquid tends to move to the anode at a DC voltage....
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