Electrowetting lens with large aperture and focal length tunability.

Electrowetting lens with large aperture and focal length tunability.
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大光圈、焦距可调的电润湿透镜

DOI:
10.1038/s41598-020-73260-4
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发表时间:
2020-10-01
期刊:
影响因子:
4.6
通讯作者:
Liu T
Liu T
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Song X;Zhang H;Li D;Jia D;Liu T

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电润湿透镜吸引了生物学、光束整形和药物输送等许多领域的研究人员。以往对电润湿透镜的研究既不关注扩大动态焦距范围,也不关注减少波前像差。然而,大数值孔径和低像差的特性也是镜头的必备特性,可以促进其应用。因此,我们计算了不同孔径的透镜弯月面,并分析了焦距、波前像差和孔径之间的关系。为了扩大焦距范围,我们设计了一种基于电润湿的三液透镜,其均方根波前像差误差小于1/4波。
The electrowetting lenses has attracted researchers in many fields, such as biology, beam shaping, and drug delivery. Previous research on electrowetting lens has focused on neither expanding the dynamic focal length range nor reducing the wavefront aberration. However, the properties with large numerical aperture and low aberration are also essential properties of lenses, and can promote their application. Therefore, we calculated the meniscus of the lens with different optical apertures, and subsequently, analyzed the relations among the focal length, wavefront aberration, and optical aperture. To expand the focal length range, we designed an electrowetting-based triple-liquid lens with a root-mean-square wavefront aberration error of less than 1/4 waves.
DOI: 10.1364/ol.40.002553
发表时间: 2015-06-01
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影响因子: 3.6
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