Design method of the dual band shared-aperture cooled infrared system based on Gaussian Brackets

YANG Rui; JIANG Qichang

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Design method of the dual band shared-aperture cooled infrared system based on Gaussian Brackets

Optical Processing and Manufacturing | 更新时间：2025-09-22

- Design method of the dual band shared-aperture cooled infrared system based on Gaussian Brackets
- OPTICAL TECHNIQUE Vol. 51, Issue 5, Pages: 571-578(2025)
- 作者机构：
  
  1.运城职业技术大学信息技术应用创新学院，山西运城 044000
  2.运城学院物理与电子工程系，山西运城 044000
- 作者简介：
- 基金信息：
- DOI：
  CLC： O439
- Received：25 December 2024，
  
  Revised：2025-03-20，
  
  Published：20 September 2025
- 稿件说明：
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杨瑞,姜其畅.基于高斯矩阵参数解算的共口径双波段制冷型红外光学系统设计方法[J].光学技术,2025,51(05):571-578.

YANG Rui,JIANG Qichang.Design method of the dual band shared-aperture cooled infrared system based on Gaussian Brackets[J].OPTICAL TECHNIQUE,2025,51(05):571-578.
杨瑞,姜其畅.基于高斯矩阵参数解算的共口径双波段制冷型红外光学系统设计方法[J].光学技术,2025,51(05):571-578. DOI：

YANG Rui,JIANG Qichang.Design method of the dual band shared-aperture cooled infrared system based on Gaussian Brackets[J].OPTICAL TECHNIQUE,2025,51(05):571-578. DOI：

摘要

文章提出了一种基于高斯矩阵的初始结构参数解算方法，并将其成功应用于共口径双波段制冷型红外光学系统的设计中。方法首先结合系统结构特点构建了理论模型，并基于高斯矩阵方程推导出参数解算方法。在解算过程中，通过引入边界条件筛选出合理的初始结构参数，并在ZEMAX中基于解算结果搭建理想模型。随后，利用实际透镜替换理想透镜，并通过多轮迭代优化，最终获得了成像质量优异的系统设计。系统具备中波和长波两个工作波段，焦距分别为-600mm和-520mm，工作

数均为2.5。系统整体结构紧凑、性能稳定，具有较高的航空航天应用价值。与传统方法相比，该方法有效降低了共口径系统中前置镜组参数趋同的难度，显著提升了设计的可行性和效率。

Abstract

A Gaussian Brackets-based method for solving initial structure parameters is presented

successfully applied to a dual-band shared-aperture cooled infrared system. The method builds a theoretical model

derives Gaussian Brackets equations with boundary conditions

and calculates reasonable initial parameters. An ideal ZEMAX model is established

followed by real lens replacement and iterative optimization. The system operates in MWIR and LWIR bands with EFLs of -600mm and -520mm

and an F/# of 2.5. Featuring a compact structure and stable performance

it shows strong aerospace potential. This method streamlines front lens group parameter matching across bands

enhancing design feasibility and efficiency.

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Keywords

references

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