Optical fibre based artificial compound eyes for direct static imaging and ultrafast motion detection  

作　　者：Heng Jiang Chi Chung Tsoi Weixing Yu Mengchao Ma Mingjie Li Zuankai Wang Xuming Zhang 

机构地区：[1]Department of Applied Physics,The Hong Kong Polytechnic University,999077 Hong Kong,China [2]Photonics Research Institute(PRI),The Hong Kong Polytechnic University,999077 Hong Kong,China [3]Key Laboratory of Spectral Imaging Technology,Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,710119 Xi’an,China [4]Anhui Province Key Laboratory of Measuring Theory and Precision Instrument,School of Instrument Science and Opto-Electronics Engineering,Hefei University of Technology,230009 Hefei,China [5]Department of Mechanical Engineering,The Hong Kong Polytechnic University,999077 Hong Kong,China [6]Research Institute for Advanced Manufacturing(RIAM),The Hong Kong Polytechnic University,999077 Hong Kong,China

出　　处：《Light(Science & Applications)》2024年第11期2649-2667,共19页光（科学与应用)（英文版）

基　　金：supported by the Research Grants Council(RGC)of Hong Kong(15215620,N_PolyU511/20);Innovation and Technology Commission(ITC)of Hong Kong(ITF-MHKJFS MHP/085/22);The Hong Kong Polytechnic University(1-CD4V,1-YY5V,1-CD6U,G-SB6C,1-CD8U,1-BBEN,1-W28S and 1-CD9Q);National Natural Science Foundation of China(62061160488,52275529).

摘　　要：Natural selection has driven arthropods to evolve fantastic natural compound eyes(NCEs)with a unique anatomical structure,providing a promising blueprint for artificial compound eyes(ACEs)to achieve static and dynamic perceptions in complex environments.Specifically,each NCE utilises an array of ommatidia,the imaging units,distributed on a curved surface to enable abundant merits.This has inspired the development of many ACEs using various microlens arrays,but the reported ACEs have limited performances in static imaging and motion detection.Particularly,it is challenging to mimic the apposition modality to effectively transmit light rays collected by many microlenses on a curved surface to a flat imaging sensor chip while preserving their spatial relationships without interference.In this study,we integrate 271 lensed polymer optical fibres into a dome-like structure to faithfully mimic the structure of NCE.Our ACE has several parameters comparable to the NCEs:271 ommatidia versus 272 for bark beetles,and 180° field of view(FOV)versus 150–180° FOV for most arthropods.In addition,our ACE outperforms the typical NCEs by~100 times in dynamic response:31.3 kHz versus 205 Hz for Glossina morsitans.Compared with other reported ACEs,our ACE enables real-time,180° panoramic direct imaging and depth estimation within its nearly infinite depth of field.Moreover,our ACE can respond to an angular motion up to 5.6×10^(6)deg/s with the ability to identify translation and rotation,making it suitable for applications to capture high-speed objects,such as surveillance,unmanned aerial/ground vehicles,and virtual reality.

关 键 词：FIELD COMPOUND enable 

分 类 号：TH74[机械工程—光学工程]