共光路宽光谱仿生视觉系统设计  

Design of broad spectrum bionic vision system

作　　者：樊凡[1] 孟晓辰[2] 祝连庆[1,2] 董明利[1,2] 杨强 朱疆 Fan Fan;Meng Xiaochen;Zhu Lianqing;Dong Mingli;Yang Qiang;Zhu Jiang(Joint International Research Laboratory of Advanced Photonics and Electronics,Beijing Information Science&Technology University,Beijing 100192,China;Beijing Key Laboratory of Optoelectronic Measurement Technology,Beijing Information Science&Technology University,Beijing 100192,China)

机构地区：[1]先进光电子技术国际合作联合实验室北京信息科技大学,北京100192 [2]光电测试技术北京市重点实验室北京信息科技大学,北京100192

出　　处：《电子测量技术》2020年第4期163-167,共5页Electronic Measurement Technology

基　　金：教育部长江学者和创新团队发展计划(PCSIRT,IRT_16R07);国家自然科学基金项目(61975019);北京信息科技大学促进高校内涵发展-科研重点研究培育项目(5211910919)资助。

摘　　要：为了获得仿生视觉系统高集成度、明暗环境适应能力、快速对焦等特点,提出了一种基于液体透镜的可见光-近红外宽光谱共光路仿生视觉系统的设计方法。首先,利用液体透镜模拟晶状体,进行实时对焦,并将入射光分为可见光和近红外两个波段,模拟明暗视觉机理。其次,通过建立数学模型、分析核心参数,完成了成像系统的光学设计。最后通过仿真及实验,分析了系统的光学参数和成像性能,验证了系统的可行性。由实验数据可知:系统可见光波段在40 lp/mm时各视场MTF值大于0.55,近红外波段在40 lp/mm时绝大多数视场下MTF值大于0.5,具有较好的成像质量。实现了共光路可见光、近红外双波段成像,完成了成像要求。In order to realize the high level of integration,light conditions adaptability,fast focus and other characteristics of bionic eyes,a visible-near infrared broad spectrum bionic vision system based on liquid lens is put forward.Firstly,with adjusting the surface of liquid lens to control the focal length achieving real-time focusing,simulating the focus process of human eyes.The incident light can be divided into visible light and near infrared light,in this way the brightness vision mechanism of human eyes can be simulated.Secondly,the main parameters of liquid lens are studied.Then by establishing the mathematical model and main parameters analysis,the optical design of system has been completed.Finally,through simulation experiments,the optical parameters and imaging performance of the system has been analyzed.By the experimental data,the MTF values of all field of view at 40 lp/mm in visible band are greater than 0.55.The MTF values of majority field of view at 40 lp/mm in near infrared band are greater than 0.5.The experimental results show the system has good imaging quality,and realized the co-optical path imaging of visible and near infrared band.

关 键 词：宽光谱 液体透镜 光学设计 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]