Abstract
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 a 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. The proposed DBA LMA with a diameter of 100 µm can change its focal length from 0.92 to 1.42 mm when the voltage changes from 0 to 200 V. The response time is relatively fast (
∼
790
m
s
). Due to the high optical transmittance (
∼
91
%
) and good thermal stability in the temperature range of
−
24.8
−
161.5
∘
C, our DBA LMA shows good focusing properties and has potential applications in the field of image processing, portable electronic devices, beam steering, ophthalmology, and 3D displays.
Funder
Fundamental Research Funds for the Central Universities
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
1 articles.
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