Fig. 1: Biological inspiration from the stereopsis of insect.
From: Multi-functional imaging inspired by insect stereopsis
a Comparison of stereopsis between insect eyes and a versatile ultrathin microlens array camera (MAC) depending on a target object distance. Like visual disparities of insect eyes, the ultrathin array camera captures assorted functional images such as a microscopic image in the near object plane, a 3D depth map in the mid plane, and a high dynamic range (HDR) image as well as high-speed images in the far object plane. b A schematic illustration of MAC configuration. Integrated configuration of MAC consisting of a lens plate with inverted microlens arrays (iMLA), multilayer aperture arrays (MAAs), and alumina gap spacers on an active pixel image sensor. c Scanning electron microscopic (SEM) image of microlens arrays. d Side and e perspective view photographs of fully-packaged ultrathin camera. The inset indicates the cross-sectional microscopic image of microlens with the MAAs, and the scale bar is 100 μm.
