多组元全动型大孔径及超大视场变焦系统设计  

Design of Zoom Lens System with Movable Components Including Large Aperture and with Ultra-Wide Field of View

作　　者：沈志娟 林海峰 曹一青 Shen Zhijuan;Lin Haifeng;Cao Yiqing(School of Opto-Electronic and Communication Engineering,XiamenUniversity of Technology,Xiamen,Fujian 361024,China;School of Mechanical and Electrical Engineering,Putian University,Putian,Fujian 351100,China)

机构地区：[1]厦门理工学院光电与通信工程学院,福建厦门361024 [2]莆田学院机电工程学院,福建莆田351100

出　　处：《激光与光电子学进展》2021年第7期174-181,共8页Laser & Optoelectronics Progress

基　　金：福建省自然科学基金(2020J01916,2018J01568);福建省中青年教师教育科研项目(JAT190590,JAT190567);莆田市科技计划(2020GP004)。

摘　　要：为了使变焦光学系统能够实现超大视场以及大孔径高分辨率成像,提出一种能够有效指导此类系统的设计方法。通过分析变焦光学系统的原理以及比较其变焦补偿方式,确定采用全动型补偿方式来实现整个系统的变焦。根据初级像差的理论并结合ZEMAX软件得到系统较合适的初始结构参数,对其进行优化设计可以得到一款由14片折射透镜组成的大孔径以及超大视场变焦系统,该系统的工作波段为400~700 nm,焦距范围为6.54~17.00 mm,变倍比为2.6,全视场角范围为60°~178°,F数为2.8,调制传递函数值在奈奎斯特频率55.6 lp/mm处均大于0.40,说明系统的成像质量较好且满足设计要求。A design method is proposed for achieving ultra-wide field of view and high-resolution imaging in an optical system including a zoom lens with a large aperture.By analyzing the principle of the optical system and comparing the mode of zoom compensation,an all-motion mode of compensation is adopted to enable zoom motion in the entire system.The primary aberration theory and the ZEMAX software program are applied to determine the initial structure parameters.The optimized design includes 14 components for the refraction lens aperture and large field of view zoom system.The parameters include a system working band of 400-700 nm,focal length range of 6.54-17.00 mm,changing time ratio of 2.6,full field of view angle ranges of 60°-178°,and F-number of 2.8.The modulation transfer function value in the Nyquist frequency,at 55.6 lp/mm,is greater than 0.40;therefore,the imaging quality of the proposed system very good and meets the design requirements.

关 键 词：几何光学 变焦系统 大孔径 超大视场 光学设计 

分 类 号：O439[机械工程—光学工程]