The compound liquid microlens arrays (MLAs) with complementary aberrations possess significant applications in integrated optics and optical imaging systems. We fabricate bilayer liquid-filled compound MLAs by three-dimensional printing, micro-nano imprinting, and microinjection. It is found that the focal length and spherical aberration of the bilayer MLAs are 0.7394 times and 0.728 times that of monolayer MLAs, respectively. The bilayer MLAs with flexible materials have great potential application in high spatial resolution bionic eye for drivable deformation and real-time monitoring.

中文翻译：

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双层液体填充复合微透镜阵列：一种补偿像差的方法

具有互补像差的复合液体微透镜阵列 (MLA) 在集成光学和光学成像系统中具有重要应用。我们通过三维打印、微纳米压印和显微注射制造双层液体填充复合 MLA。发现双层MLA的焦距和球差分别是单层MLA的0.7394倍和0.728倍。具有柔性材料的双层 MLA 在高空间分辨率仿生眼中具有巨大的潜在应用，可用于驱动变形和实时监控。