Microlens arrays (MLAs) and MLA-based artificial compound eyes (ACEs) are the important miniaturized optical components in modern micro-optical systems. However, their optical performance will seriously decline once they are wetted by water droplets (such as fog, dew, and rain droplets) or are polluted by contaminations in a humid environment. In this mini-review, we summarize the research works related to the fabrication of superwetting MLAs and ACEs and show how to integrate superhydrophobic and superoleophobic microstructures with an MLA. The fabrication strategy can be split into two categories. One is the hybrid pattern composed of the MLA domain and the superwetting domain. Another is the direct formation of superwetting nanostructures on the surface of the microlenses. The superhydrophobicity or superoleophobicity endows the MLAs and ACEs with liquid repellence and self-cleaning function besides excellent optical performance. We believe that the superwetting MLAs and ACEs will have significant applications in various optical systems that are often used in the humid or liquid environment.

微透镜阵列（MLA）和基于MLA的人工复眼（ACE）是现代微光学系统中重要的小型化光学组件。但是，一旦它们被水滴（例如雾，露水和雨滴）弄湿或被潮湿环境中的污染物污染，它们的光学性能就会严重下降。在此微型审查中，我们总结了与超湿润MLA和ACE的制造有关的研究工作，并展示了如何将超疏水和超疏油微结构与MLA集成在一起。制造策略可以分为两类。一种是由MLA域和超湿域组成的混合模式。另一个是在微透镜表面上直接形成超湿润纳米结构。超疏水性或超疏油性使MLA和ACE具有出色的光学性能，并且具有拒液和自清洁功能。我们相信，超湿MLA和ACE将在经常在潮湿或液体环境中使用的各种光学系统中具有重要的应用。