[1]张发平,张华卫.基于二元衍射面的长波无热化光学系统设计[J].红外技术,2020,42(1):025-29.[doi:10.11846/j.issn.1001_8891.202001004]
 ZHANG Faping,ZHANG Huawei.Design of Long-wave Athermal Optical System Based on Binary Diffraction Surface[J].Infrared Technology,2020,42(1):025-29.[doi:10.11846/j.issn.1001_8891.202001004]
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基于二元衍射面的长波无热化光学系统设计
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《红外技术》[ISSN:1001-8891/CN:CN 53-1053/TN]

卷:
42卷
期数:
2020年第1期
页码:
025-29
栏目:
出版日期:
2020-01-23

文章信息/Info

Title:
Design of Long-wave Athermal Optical System Based on Binary Diffraction Surface
文章编号:
1001-8891(2020)01-0025-05
作者:
张发平张华卫
四川长虹电子科技有限公司
Author(s):
ZHANG FapingZHANG Huawei
Sichuan Changhong Electronics Technology Development Co., Ltd.
关键词:
二元衍射面无热化红外系统结构紧凑
Keywords:
binary diffraction surfaceathermalizationinfrared systemcompact structure
分类号:
TN216
DOI:
10.11846/j.issn.1001_8891.202001004
文献标志码:
A
摘要:
仅用3片透镜,设计了一款匹配640×512氧化钒非制冷长波焦平面探测器的红外系统。该系统焦距为100 mm,F数为1.1,总长为107 mm,工作波段范围为8~12um,引入一片二元衍射面实现无热化温度补偿功能。利用ZEMAX进行仿真设计,结果表明:在-40℃~+60℃温度范围内,系统奈奎斯特频率(30 lp/mm)处MTF均达到0.49,接近衍射极限。该系统具有焦距较长,相对孔径大、全视场像质优良、温度适应良好、二元面衍射效率高、易于加工和结构紧凑的特点。
Abstract:
Using only three lenses, an infrared system matching 640×512 uncooled vanadium oxide long-wave focal plane detector was designed. The system has a focal length of 100 mm, an F-number of 1.1, a total length of 107 mm, and a working band range of 8-12 ?m. A binary diffraction surface was introduced to realize the non-thermal temperature compensation function. The simulation design using Zemax shows that the modulation transfer function (MTF)value at the Nyquist frequency (30 lp/mm) of the system reached 0.49 in the temperature range of -40℃-+60℃, which is close to the diffraction limit. The system has the characteristics of a long focal length, large relative aperture, good image quality in the full field of view, suitable temperature adaptation, high binary diffraction efficiency, easy processing, and compact structure.

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备注/Memo

备注/Memo:
收稿日期:2019-04-02;修订日期:2020-01-06.
作者简介:张发平(1980-),男,四川乐至人,硕士,研究方向为红外光学系统设计和装调。 E-mail:420200590@qq.com。?
基金项目:四川省军民融合产业发展专项资金项目(D18/69-01004)。

更新日期/Last Update: 2020-01-20