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Dielectric-elastomer-based fabrication method for varifocal microlens array
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DOI：10.1364/OE.25.031708.png)
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摘要
En 中文
We report on a method to fabricate a varifocal microlens array that employs a dielectric elastomer (DE) sandwiched between two electrodes as the lens material. The microlens array is patterned on the electrode plates, and when the electrodes are subjected to a controllable operating voltage, the DE material is squeezed by the Maxwell force to deform the lens array pattern, thus resulting in curvature deformation yielding a tunable lens profile. The tunable focal length performance ranges from 950 mm to infinity. When compared with liquid-filled lenses, solid-based varifocal lenses are more robust to thermal expansion, gravity, and vibrational motion. Our approach can be utilized in applications such as machine vision systems. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keyword:
VARIABLE-FOCUS LENS
ADAPTIVE LIQUID LENS
LARGE-APERTURE
FOCAL LENGTH
CRYSTAL LENS
POLYMER LENS
TRANSPARENT
ACTUATORS
SYSTEM
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期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
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