超高倍变焦光学系统设计

设计了一套焦距f′=8 mm~2 400 mm的超高倍变焦光学系统，对可见光波段成像。采用多组元全动型变焦结构，在实现高变倍比的前提下不增加系统尺寸；在普通衍射透镜的基础上，分析了谐衍射元件的成像特性及色散，减小长焦距所引入的色差和二级光谱；给出了新型非球面方程及特性，解决了普通非球面方程项数选取复杂的问题。在上述理论基础上，利用Zemax光学设计软件对系统进行仿真，引入4个谐衍射面和4个新型非球面。设计结果表明，在奈奎斯特频率50 lp/mm时，调制传递函数曲线均在0.5以上，成像质量较好，可广泛应用于**、航天等领域。

Abstract

An ultra-high zoom optical system with the focal length of 8 mm~2 400 mm was designed for visible light band imaging. Using multi-component fully dynamic zoom structure,it does not increase the size of system on the premise of high variable ratio.Based on the ordinary diffractive lenses,the imaging characteristics and dispersion of harmonic diffractive element were analyzed,as well as the chromatic aberration and secondary spectrum introduced by reducing the long focal length. The new aspherical equations and characteristics were given, which could solve the problem of complex selection of the number of ordinary aspherical equations.On the basis of the above theory, the system was simulated by Zemax optical design software, and 4 harmonic diffraction surfaces and 4 new aspheric surfaces were introduced. The design results show that, at the Nyquist frequency of 50 lp/mm, the modulation transfer function curves are all above 0.5. The imaging quality is good, and it can be widely used in military and aerospace fields.

参考文献

[1] 袁旭沧.应用光学［M］.北京:国防工业出版社,1988:291.

YUAN Xucang. Applied optical ［M］. Beijing: National Defense Industry Press, 1988:291.

[2] 张存武.变焦距光学系统设计［D］.长春：长春理工大学,2006.

ZHANG Cunwu. Zoom optical system design ［D］.Changchun:Changchun University of Science and Technology, 2006.

[3] 李林,安连生.计算机辅助光学设计的理论与应用［M］.北京:国防工业出版社,2002.

LI lin,AN Liansheng.The theory and application of computer aided optical design ［M］. Beijing: National Defense Industry Press,2002.

[4] 陶纯堪.变焦距光学系统设计［M］.北京:国防业出版社,1988:2-3.

TAO Chunkan. Zoom optical system design ［M］. Beijing:National Defense Industry Press, 1988:2-3.

[5] 温同强.变焦距光学系统的研究与设计［D］.江苏:江苏大学,2009.

WEN Tongqiang. Research and design of zoom optical system ［D］. Jiangsu: Jiangsu University, 2009.

[6] 郁道银,谈恒英.工程光学［M］.北京:机械工业出版社,2006.

YU Daoyin,TAN Hengying. Engineering optics ［M］. Beijing: Machinery Industry Press,2006.

[7] 颜树华.衍射微光学设计［M］.北京：国防工业出版社，2011.

YAN Shuhua. Diffractive microoptics design ［M］. Beijing: National Defense Industry Press, 2011.

[8] 裴雪丹,崔庆丰,冷家开,等.多层衍射光学元件设计原理与衍射效率的研究［J］.光子学报，2009,38(5):1126-1131.

PEI Xuedan,CUI Qingfeng,LENG Jiakai,et al. Study on the design principle and diffraction efficiency of multilayered diffractive optical elements ［J］. Acta Photonica Sinica, 2009,38 (5): 1126-1131.

[9] YOUNGSHIK Yoon.Design and tolerancing of achromatic and ansstigmatic diffractive-refractive lens systems compared with equivalent conventional lens systems［J］.Appl.Opt.,2000,39(16):2551-2558.

[10] RIGLER A K, VOGL T P.Spline functions: an alternative representation of aspheric Surface ［J］.Appl.Opt.,1971, 10:1648-1651.

[11] HYUN S K, HANG W K, SEOK M H. Compact mid-wavelength infrared zoom camera with 20:1 zoom range and automatic athermalization ［J］. Optical Engineering,2002,41(7):1661-1667.

[12] 候晓萍.高连续变倍比体视显微镜变倍物镜的光学设计［D］.南京:南京理工大学,2006:11-14.

HOU Xiaoping. Optical design of a high continuous variable magnification microscopes variable magnification lens ［D］.Nanjing:Nanjing University of Science and Technology,2006:11-14.

张欣婷, 亢磊, 吴倩倩. 超高倍变焦光学系统设计[J]. 应用光学, 2018, 39(4): 466. Zhang Xinting, Kang Lei, Wu Qianqian. Design of ultra-high zoom optical system[J]. Journal of Applied Optics, 2018, 39(4): 466.

超高倍变焦光学系统设计

关于本站 Cookie 的使用提示

全站搜索

超高倍变焦光学系统设计

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索