10倍变焦安防镜头光学系统设计  

Optical Design of 10x Zoom Security Lens

作　　者：宋鹏飞 王春艳[1] 孙昊[1] 王志强 刘欢[1] SONG Pengfei;WANG Chunyan;SUN hao;WANG zhiqiang;LIU Huan(School of Opto-Electronic Engineering,Changchun University of Science and Thchnology,Changchun 130022;Jiangsu North Huguang Photoelectrnic Co.LTD,Wuxi 214000)

机构地区：[1]长春理工大学光电工程学院,长春130022 [2]江苏北方湖光光电有限公司,无锡214000

出　　处：《长春理工大学学报（自然科学版）》2022年第4期39-43,共5页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：吉林省科技发展计划项目(20200401048GX);长春理工大学青年科学基金(XQNJJ-2018-08)。

摘　　要：安防镜头是停车场安防监控系统的重要组成部分,为了应对停车场安防的复杂环境,设计了一款焦距从18~180 mm的机械变焦镜头。该系统通过机械补偿变焦结构,合理匹配材料并分配光焦度对光学系统进行设计及像质评价,应用动态光学理论与Matlab软件拟合凸轮曲线。通过15片球面透镜,实现波段486~656 nm、F数2.2、视场2.5°~25°,MTF在100 lp/mm时大于0.3,弥散斑半径小于5μm,场曲优于0.04 mm,畸变优于3%。满足停车场监控的实际需求,对类似变焦光学系统设计具有参考价值。The security lens is an important part of the parking lot security monitoring system.In order to deal with the complex environment of the parking lot security,a mechanical zoom lens with a focal length from 18 to 180 mm is de-signed.The system designs and evaluates the image quality of the optical system by mechanically compensating the zoom structure,reasonably matching materials and assigning optical power.And dynamic optical theory and MATLAB software are apllied to fit the cam curve.Through 15 spherical lenses,t he wavelength band is 486~656 nm;t he F number is 2.2;the field of view is 2.5°~25°;MTF is greater than 0.3 at 100 lp/mm,t he radius of the diffuse spot is less than 5μm;t he field curvature is better than 0.04 mm;and the distortion Better than 3%.To meet the actual needs of parking lot monitor-ing,i t has reference value for the design of similar zoom optical system.

关 键 词：安防镜头 变焦光学系统设计 机械补偿 像质评价 

分 类 号：TN206[电子电信—物理电子学] TN942.2