[1]陈潇.大面阵长波红外光学无热化镜头的设计[J].红外技术,2018,40(11):1061-1064.[doi:10.11846/j.issn.1001_8891.201811007]
 CHEN Xiao.Design of Long-wavelength Infrared Athermalization Lens for Large-array Detector[J].Infrared Technology,2018,40(11):1061-1064.[doi:10.11846/j.issn.1001_8891.201811007]
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大面阵长波红外光学无热化镜头的设计
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《红外技术》[ISSN:1001-8891/CN:CN 53-1053/TN]

卷:
40
期数:
2018年第11期
页码:
1061-1064
栏目:
出版日期:
2018-11-21

文章信息/Info

Title:
Design of Long-wavelength Infrared Athermalization Lens for Large-array Detector

文章编号:
1001-8891(2018)11-1061-04
作者:
陈潇
南京邮电大学通达学院 电子工程学院
Author(s):
CHEN Xiao
Tongda College of Nanjing University of Post & Telecommunications
关键词:
大面阵无热化非球面长波红外光学设计
Keywords:
large-arrayathermalizationaspheric surfacelong-wavelengthoptical design
分类号:
O439
DOI:
10.11846/j.issn.1001_8891.201811007
文献标志码:
A
摘要:
红外成像随着红外探测器技术及红外材料的发展,一方面是走向大面阵,另一方面是走向无热化。文中设计了一款用于大面阵(1024×768,17 um)长波红外光学无热化镜头。系统由4片透镜组成,采用两种红外材料组合设计和两面非球面校正系统像差设计,焦距为90 mm,相对孔径为1:1,全视场角为13.8°,总长为108 mm。设计结果表明:在空间频率为30 lp/mm,0视场的MTF值大于0.45,接近于衍射极限,1视场的MTF大于0.35,在-60℃~+100℃温度范围内,各视场MTF值与常温变化不大,满足光学无热化设计。该镜头结构简单、紧凑、工艺性良好,易于加工,易于实现。
Abstract:
With the development of infrared detector technology and infrared materials, infrared imaging has two orientations; on the one hand, it orients toward the large-array detector, and on the other hand, it orients toward non-thermalization. This paper designed an infrared athermalized lens for use in a large-array detector (1024×768, 17 um) with a long wavelength. The lens is composed of four pieces, using two kinds of infrared materials for a combination design and two aspheric surfaces for aberration correction. The focal length is 90 mm, the relative aperture is 1:1, the full field of view angle is 13.8°, and the total length is 110 mm. The final design shows that the MTF value of 0 view is greater than 0.45 at the spatial frequency of 30 lp/mm, which is close to the diffraction limit; the MTF value of full-view is greater than 0.35(at 30 lp/mm). The MTF values for the entire field view changed little in the working temperature range(-60℃ to+100℃), compared with the normal temperature design. The lens structure is simple, compact, and is easy to use, process, and implement.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-04-02;修订日期:2018-06-27.
作者简介:陈潇(1985-),女,陕西西安人,工程师(讲师),主要研究方向为光学设计及红外光学。E-mail:chenxiao.45678@163.com。
基金项目:国家自然科学基金孵化项目(NY218094)。

更新日期/Last Update: 2018-11-20