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Article

Design and Fabrication of an Artificial Compound Eye for Multi-Spectral Imaging

by 1,2, 1, 1, 1,*, 1 and 1,*
1
Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
*
Authors to whom correspondence should be addressed.
Micromachines 2019, 10(3), 208; https://doi.org/10.3390/mi10030208
Received: 28 February 2019 / Revised: 17 March 2019 / Accepted: 22 March 2019 / Published: 25 March 2019
(This article belongs to the Special Issue Product/Process Fingerprint in Micro Manufacturing)
The artificial compound eye (ACE) structure is a new type of miniaturized, lightweight and intelligent imaging system. This paper has proposed to design a multi-spectral ACE structure to enable the structure to achieve multi-spectral information on the basis of imaging. The sub-eyes in the compound eye structure have been designed as diffractive beam splitting lenses with the same focal length of 20 mm, but with the different designed center wavelengths of 650 nm, 532 nm, and 445 nm, respectively. The proximity exposure lithography and reactive ion etching process were used to prepare the designed multi-spectral ACE structure, and the spectral splitting and multi-spectral imaging experiments were carried out to verify the multi-spectral imaging function of the structure without axial movement. Furthermore, the structure can be designed according to actual requirements, which can be applied to covert reconnaissance, camouflage identification, gas leakage or other fields. View Full-Text
Keywords: artificial compound eye; multi-spectral imaging; lithography; spectral splitting artificial compound eye; multi-spectral imaging; lithography; spectral splitting
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MDPI and ACS Style

Cao, A.; Pang, H.; Zhang, M.; Shi, L.; Deng, Q.; Hu, S. Design and Fabrication of an Artificial Compound Eye for Multi-Spectral Imaging. Micromachines 2019, 10, 208. https://doi.org/10.3390/mi10030208

AMA Style

Cao A, Pang H, Zhang M, Shi L, Deng Q, Hu S. Design and Fabrication of an Artificial Compound Eye for Multi-Spectral Imaging. Micromachines. 2019; 10(3):208. https://doi.org/10.3390/mi10030208

Chicago/Turabian Style

Cao, Axiu, Hui Pang, Man Zhang, Lifang Shi, Qiling Deng, and Song Hu. 2019. "Design and Fabrication of an Artificial Compound Eye for Multi-Spectral Imaging" Micromachines 10, no. 3: 208. https://doi.org/10.3390/mi10030208

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