Compound eyes found in insects provide intriguing sources of biological inspiration for miniaturised imaging systems. Here, we report an ultrathin arrayed camera inspired by insect eye structures for high-contrast and super-resolution imaging. The ultrathin camera features micro-optical elements (MOEs), i.e., inverted microlenses, multilayered pinhole arrays, and gap spacers on an image sensor. The MOE was fabricated by using repeated photolithography and thermal reflow. The fully packaged camera shows a total track length of 740 μm and a field-of-view (FOV) of 73°. The experimental results demonstrate that the multilayered pinhole of the MOE allows high-contrast imaging by eliminating the optical crosstalk between microlenses. The integral image reconstructed from array images clearly increases the modulation transfer function (MTF) by ~1.57 times compared to that of a single channel image in the ultrathin camera. This ultrathin arrayed camera provides a novel and practical direction for diverse mobile, surveillance or medical applications.

在昆虫中发现的复眼为微型成像系统提供了有趣的生物学灵感来源。在这里，我们报告了一种受昆虫眼结构启发的超薄阵列相机，用于高对比度和超分辨率成像。超薄相机具有微光学元件（MOE），即图像传感器上的倒置微透镜，多层针孔阵列和间隙垫片。通过使用重复光刻和热回流来制造MOE。完全包装的相机显示的总轨迹长度为740μm，视野（FOV）为73°。实验结果表明，通过消除微透镜之间的光学串扰，MOE的多层针孔可实现高对比度成像。从阵列图像重建的积分图像将调制传递函数（MTF）明显增加了〜1。是超薄相机中单通道图像的57倍。这款超薄阵列相机为各种移动，监视或医疗应用提供了新颖实用的方向。