宽谱段红外消热差光学系统设计

付跃刚; 黄蕴涵; 刘智颖

宽谱段红外消热差光学系统设计

长春理工大学测控分析中心,吉林长春 130022

详细信息

通讯作者:
付跃刚（1972-），男，吉林人，教授，博士生导师，主要从事光学设计及检测技术方面的研究。 Email: Fuyg@cust.edu.cn

中图分类号: TN202;TH703
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出版历程
- 刊出日期: 2014-05-14

Design of multispectral infrared athermal optical system

Test,Control&Analysis Centre,Changchun University of Science and Technology ,Changchun 130022,China

摘要

摘要: 宽谱段红外光学系统可以获取宽谱段的图像信息并增大目标信息获取程度。从红外光学系统的简洁性出发，对红外光学系统进行设计，系统仅由4片球面透镜组成，实现了4.4 m~8.8 m波段清晰成像， F#为2.68，达到了100%的冷光阑效应。采用被动消热差方式通过合理选择镜片材料及公式推导最终实现了各个波段内的消热差，镜筒材料为钛合金，透镜采用硒化锌（ZnSe），锗（Ge）及硫化锌（ZnS）材料，给出20 lp/mm处系统在各个波段在-40 ℃~60 ℃的工作温度下的调制传递函数（MTF），以及各个波段下的光学系统畸变值。实验结果表明：设计的宽谱段红外光学系统结构简单，满足设计要求。
- 宽谱段 /
- 红外 /
- 消热差 /
- 光学设计
Abstract: The infrared multi-band optical system can track the band information stretching from mid-wave infrared to long-wave infrared ,which can greatly improve the information acquisition capability. A infrared multi-band optical system composed of 4 spherical lenses was designed based on the compact principle. It could image clearly at 4.4 m~8.8 m continuously , the F# was 2.68 which strictly matched with the cold light bar so that the cold light bar effect reached 100% . The system used the passive athermalization method to get rid of temperature compensation problem and finally realized athermalization for continuous bands through selection of lens materials and formula derivation. The tube was made of titanium alloy,the lens was made of ZnSe,Germanium and ZnS materials.The modulation transfer funtion(MTF) at 40 ℃ to 60 ℃ was given, as well as the distortion over every wavebands.The result shows that the design of the system structure is relatively simple, which satisfies the requirements of a standard infrared thermal imager.
- wide band /
- infrared /
- athermalization /
- optical design

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参考文献(1)

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宽谱段红外消热差光学系统设计

通讯作者:
付跃刚（1972-），男，吉林人，教授，博士生导师，主要从事光学设计及检测技术方面的研究。 Email: Fuyg@cust.edu.cn

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Design of multispectral infrared athermal optical system

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宽谱段红外消热差光学系统设计

通讯作者: 付跃刚（1972-），男，吉林人，教授，博士生导师，主要从事光学设计及检测技术方面的研究。 Email: Fuyg@cust.edu.cn

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Design of multispectral infrared athermal optical system

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通讯作者:
付跃刚（1972-），男，吉林人，教授，博士生导师，主要从事光学设计及检测技术方面的研究。 Email: Fuyg@cust.edu.cn