[1]李瑞瑶,付跃刚,刘智颖.紧凑型中波红外成像系统无热化设计[J].红外技术,2018,40(2):119-124.[doi:10.11846/j.issn.1001_8891.201802004]
 LI Ruiyao,FU Yuegang,LIU Zhiying.Athermalization Design of Compact Medium-wave Infrared Imaging System[J].Infrared Technology,2018,40(2):119-124.[doi:10.11846/j.issn.1001_8891.201802004]
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紧凑型中波红外成像系统无热化设计
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《红外技术》[ISSN:1001-8891/CN:CN 53-1053/TN]

卷:
40
期数:
2018年第2期
页码:
119-124
栏目:
出版日期:
2018-02-20

文章信息/Info

Title:
Athermalization Design of Compact Medium-wave Infrared Imaging System
文章编号:
1001-8891(2018)02-0119-06
作者:
李瑞瑶付跃刚刘智颖
长春理工大学 光电工程学院,吉林 长春 130022
Author(s):
LI RuiyaoFU YuegangLIU Zhiying
School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China
关键词:
中波红外成像卡塞格林系统光学设计紧凑型消热差
Keywords:
MW infrared imaging infraredCasey Grain systemoptical designcompactathermalization
分类号:
TN216
DOI:
10.11846/j.issn.1001_8891.201802004
文献标志码:
A
摘要:
红外成像光学系统应用日益广泛,并且对小型化有了更高要求,因此提出一种紧凑型中波红外成像系统的无热化光学设计。首先针对需求对光学参数进行了分析与计算,根据参数要求采用卡塞格林系统缩短系统纵向尺寸,然后用中继透镜组校正像差,考虑到透镜易于加工、成本低,中继透镜组采用全球面面型,最终实现了卡塞格林系统的次镜到红外探测器之间的尺寸小于47 mm,使系统足够紧凑。通过合理选择材料以及光焦度的分配,推导光学被动消热差方程,计算出系统的初始结构,利用Zemax光学设计软件进行优化,最终实现波段为3.7~4.8 mm,视场为3°×3°,温度范围-40℃~+50℃消热差结果,在空间频率17 lp×mm-1处,各视场光学调制函数(MTF)值均大于0.5。
Abstract:
 As the infrared imaging optical system is used more and more widely with higher requirement to miniaturization, an athermal optical design for a compact medium wave infrared imaging system has been proposed. At the beginning, the optical parameters were analyzed and calculated based on the requirements, the vertical size of system was shortened by utilizing Casey Green system in accordance with the parameter requirement, and then the relay lens set was used to correct the aberration. Considering the lower processing cost of the lens, a full global surface type was adopted for the relay lens set, which finally shortened the size between the secondary lens of Casey Green system and the infrared detector by 47 mm, making the system sufficiently compact. Through the rational selection of material and distribution of focal power, the optical passive differential equation of heat elimination was derived and the primary structure of the system was calculated consequently. By means of optimization of Zemax optical design software, the heat dissipation results, such as 3.7-4.8 mm of wave, field of view of 3°×3° and the temperature range of -40℃-+50℃, were eventually realized. Moreover, in a place with space frequency of 17 lp×mm-1, the optical modulation transfer function (MTF) values of each field of view were all greater than 0.5.

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备注/Memo

备注/Memo:
收稿日期:2017-07-20;修订日期:2017-09-18.
作者简介:李瑞瑶(1992-),女,在读硕士研究生,研究方向:光电信息工程。E-mail:1014660893@qq.com。
通信作者:付跃刚(1972-),男,教授,博士生导师。主要从事光学设计及检测技术方面研究。E-mail:Fuyg@cust.edu.cn。
更新日期/Last Update: 2018-02-12