期刊
ADVANCED MATERIALS TECHNOLOGIES
卷 6, 期 10, 页码 -出版社
WILEY
DOI: 10.1002/admt.202100091
关键词
artificial compound eyes; imaging; microfabrication; microlens arrays; micro-optics
资金
- National Key Research and Development Program of China [2017YFB1104700]
- National Science Foundation of China [61875158]
- International Joint Research Laboratory for Micro/Nano Manufacturing and Measurement Technologies
- Fundamental Research Funds for the Central Universities
Natural compound eyes have inspired the design of advanced imaging devices, while artificial compound eyes with microlens arrays have attracted significant research interest due to their advantages in modern micro-optical systems. After over a decade of intense research, various successful approaches have been developed to fabricate microlens arrays with high surface morphology and excellent optical performance.
The natural compound eyes provide great inspiration for design of advanced imaging devices. Artificial compound eyes (ACEs) with close-packed microlens arrays (MLAs) have attracted enormous research interests due to their remarkable advantages in modern micro-optical systems, such as miniaturization, high integration, tunable focal length, large field of view, and moving objects tracking. Over a decade of intense research, numerous approaches have been successfully developed to fabricate MLAs with high surface morphology and excellent optical performance. This paper gives a review of progress and continuous effort in the development and practical applications of ACEs. At first, two representative visual systems: single-lens eye and compound eye are briefly introduced. Then, the main characteristic parameters of the microlens and MLAs are presented. After that, various fabrication technologies with different mechanisms that are successfully applied in planar and curved MLAs are summarized. The advantages and limitations of each processing method are discussed. Subsequently, some important practical applications of MLAs, particularly on imaging, beaming homogenizing, sensing, light extraction technique, micro-total analysis systems (mu-TAS), and microfabrication are also given. Finally, the current challenges and further prospects of this field are highlighted.
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