基于机器视觉的远心物镜设计  

Design of Telecentric Objective Based on Machine Vision

作　　者：陈姝君[1] 周广丽[1] 王艳[1] 孙敦艳[1] 郁玲艳[1] Shujun Chen;Guangli Zhou;Yan Wang;Dunyan Sun;Lingyan Yu(Nanjing University of Science and Technology Zijin College,Nanjing,Jiangsu,210046,China)

机构地区：[1]南京理工大学紫金学院,江苏南京210046

出　　处：《电子科学技术》2017年第4期50-53,共4页Electronic Science & Technology

摘　　要：伴随着光电技术的发展,机器视觉检测在工业生产中变得极为重要。本文提出了一个用于光学测量的物方远心光路镜头,其设计要求是:工作距离120mm,放大倍率0.8倍,数值孔径NA为0.035,像面CCD尺寸2/3英寸,畸变不超过0.15%,空间截止频率83lp/mm,全部视场MTF大于0.3。通过选择合适的初始结构,然后经过ZEMAX软件的模拟和优化,得到镜头的畸变为0.02%,放大倍率0.8倍,截止频率83lp/mm处曲线高度都大于0.3,符合给定的设计要求且结构紧凑。With the development of optoelectronic technology,machine vision inspection has becomeextremely important in industrial production.The paper presents a telecentric lens for optical measurement,the design requirements are:working distance120mm,magnification0.8,the numerical aperture NA is0.035,CCD size2/3inch,distortion does not exceed0.15%,the space cut-off frequency83lp/mm,all fieldMTF greater than0.3.By selecting the appropriate initial structure,and then using ZEMAX for simulationand optimization,we get the compact structure which meet the given design requirements,lens distortionis0.02%,magnification0.8,cut-off frequency83lp/mm MTF is greater than0.3.

关 键 词：机器视觉 物方远心 放大倍率 ZEMAX 

分 类 号：TH74[机械工程—光学工程]