机载折反式光学系统的无热化设计

廖劲峰; 丁亚林; 姚园

doi:10.3788/YJYXS20193401.0039

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机载折反式光学系统的无热化设计

材料与器件 | 更新时间：2020-07-05

- 机载折反式光学系统的无热化设计
- Athermalization design of airborne mirror-lens optical system
- 液晶与显示 2019年34卷第1期页码：39-46
- 作者机构：
  
  1.中国科学院长春光学精密机械与物理研究所航空光学成像与测量重点实验室, 吉林长春 130033
  2.中国科学院大学, 北京 100049
- 作者简介：
  
  [ "廖劲峰(1995-), 男, 四川富顺人, 硕士研究生, 2016年于哈尔滨工业大学(威海)获得学士学位, 主要从事光学设计方面的研究。E-mail:liao_jin_feng@163.com" ]
  [ "丁亚林(1964-)，男，吉林长春人，研究员，博士生导师，1994年于东北大学获得硕士学位，主要研究方向为航空遥感成像。主要从事航空相机总体设计方面的研究。E-mail:dingyl_1964@126.com" ]
- 基金信息：
- DOI：10.3788/YJYXS20193401.0039
  中图分类号： TH74
- 收稿日期：2018-08-20，
  
  录用日期：2018-11-12，
  
  纸质出版日期：2019-01-25
- 稿件说明：
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廖劲峰, 丁亚林, 姚园. 机载折反式光学系统的无热化设计[J]. 液晶与显示, 2019,34(1):39-46.

Jin-feng LIAO, Ya-lin DING, Yuan YAO. Athermalization design of airborne mirror-lens optical system[J]. Chinese journal of liquid crystals and displays, 2019, 34(1): 39-46.
廖劲峰, 丁亚林, 姚园. 机载折反式光学系统的无热化设计[J]. 液晶与显示, 2019,34(1):39-46. DOI： 10.3788/YJYXS20193401.0039.

Jin-feng LIAO, Ya-lin DING, Yuan YAO. Athermalization design of airborne mirror-lens optical system[J]. Chinese journal of liquid crystals and displays, 2019, 34(1): 39-46. DOI： 10.3788/YJYXS20193401.0039.

摘要

为了消除在实际飞行过程中温度变化对机载折反式光学系统成像质量的影响，对该系统的光学元件、机械结构等部分进行热分析，实现机载折反式光学系统的无热化设计。首先，根据透镜的光焦度公式推导透镜的光焦度温度函数，列出透镜组的消热差方程。接着，在考虑支撑结构的影响时引入轴向放大率，以此表现折反式系统部分元件间隔变化对系统焦距影响大的特点。最后，结合前两者确定完整的消热差方程来指导无热化设计。仿真结果表明，工作在486~656 nm波段，焦距为1 850 mm的机载折反式可见光光学系统在0~40℃之间成像良好，调制传递函数下降不到0.1。

Abstract

In order to eliminate the influence of temperature change on the imaging quality of the airborne mirror-lens optical system during the actual flight

thermal analysis of the optical components and mechanical structures of the system was carried out to realize the athermal design of the airborne mirror-lens optical system. First

the power temperature function of the lens was derived from the power formula of the lens

and the athermal equation of the lens group was listed. Then

the axial magnification was introduced when considering the influence of the support structure

so as to show that the variation of the component spacing of the mirror-lens system had a great influence on the focal length of the system. Finally

the complete athermal equation was determined in conjunction with the former two to guide the athermal design. The simulation results show that the airborne mirror-lens visible optics system with a focal length of 1 850 mm works well in the 486~656 nm band between 0~40℃

and the modulation transfer function decreases by less than 0.1.

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Keywords

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