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Design and analysis of an aspherical double-liquid lens based on a seven-ring patterned planar electrode
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DOI：10.1016/j.optlaseng.2026.109768.png)
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Abstract
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To enhance the imaging quality of liquid lenses, an aspherical double-liquid lens based on a seven-ring patterned planar electrode is designed and analyzed in this paper. Modeling and simulations are conducted using COMSOL, MATLAB, and Zemax, and experimental devices are fabricated for validation. The results demonstrate that under a driving voltage ranging from 0 V to 270 V, the focal length of the lens varies continuously from 95.3044 mm to 43.3681 mm, achieving a zoom ratio of 2.198. At 240 V, the imaging resolution reaches 80.635 lp/mm. The proposed liquid lens exhibits advantages such as a simple structure, ease of fabrication, a wide zoom range and high imaging quality, making it highly promising for applications in next-generation compact optoelectronic systems, including miniaturized imaging, intelligent sensing and advanced displays.
Keywords:
Focal length adjustment
Liquid lens
Dielectrophoresis
Aspherical
Planar patterned electrode
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