Optical system of bionic compound eye with large field of view

被引：0
|
作者：
Zhang J.-M. [1 ]
Chen Y. [1 ]
Tan H.-Q. [2 ]
Liu C.-Z. [2 ]
机构：
[1] The School of Electro-Optical Engineering, Changchun University of Science and Technology, Changchun
[2] The School of Life Science and Technology, Changchun University of Science and Technology, Changchun
来源：
Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2020年 / 28卷 / 05期
关键词：
Bionic compound eye system; Micro-lens array; Multi-aperture system; Optical system design;
D O I：
10.3788/OPE.20202805.1012
中图分类号：
学科分类号：
摘要：
Compound eyes are composed of several sub-eyes distributed on a curved surface. Such a vision system has several advantages, such as a small size, large Field of View (FOV), and high sensitivity, in addition to excellent application prospects in relevant fields of mechanical vision. To realize the additive manufacturing of a bionic compound eye system with a large FOV, the imaging principle of bionic compound eyes, design of a micro-lens array and relay system, and mechanical structure were studied. First, a single micro-lens was designed based on the optical principle of bionic compound eyes, and a micro-lens array was completed. Further, the curved image surface formed by the curved array was converted to a planar image, which could be received by a planar detector, by introducing a relay system. Subsequently, the micro-lens array and the relay system were combined, and the image quality was optimized. Finally, the mechanical structure was designed aiming at the additive manufacture of the compound eye system. The micro-lens array contains 3 481 closely-spliced hexagonal micro-lenses. Each lens has a FOV of 4° and a clear aperture of 110 μm, and the entire compound eye covered an FOV of 123.7°. The MTF values of each FOV are greater than 0.3 at 120 lp/mm, and the corresponding RMS spot radii are less than the radius of the Airy disk. The analysis results indicate that the compound eye with a require image quality can meet addictive manufacturing requirements. © 2020, Science Press. All right reserved.
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页码：1012 / 1020
页数：8
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