光学精密工程2012，Vol.20Issue(12)：2619-2625,7.DOI:10.3788/OPE.20122012.2619
双向大视场消畸变低温红外目标模拟光学系统设计
Design of cryogenic infrared target simulation system with bidirectional and wide field for eliminating distortion
摘要
Abstract
To overcome the shortcomings of off-axis Three Mirror Anastigmatic (TMA) optical systems in larger sagittally FOVs and smaller meridionally FOVs, this paper designs a bidirectional TMA optical system for cryogenic infrared target simulation system based on the symmetric rule of optical system. Both the sagittally and meridionally FOVs are 5°,the larger FOV optical system at 3-5μm has a focal length of 400 mm and a F number of 8. By using the structural parameters of the optical system and the non-spherical coefficients of the mirrors to adjust and correct the eccentric and tilt of the three-mirror and to eliminate distortion and other aberrations, the system shows that the MTF is better than 0. 71 at 6. 5 lp/mm, the aberration of the whole FOV is λ/250(RMS) and the maximum radius of diffuse point is less than 7. 0 /nm(RMS), which achieves diffraction limit. Moreover, the maximum distortion in the whole FOV is less than 0. 04%. Finally, it proves that the optical system has good imaging quality both in the visible and infrared spectral regions.关键词
红外目标模拟/光学设计/离轴三反射系统/大视场/消畸变Key words
infrared target simulation/ optical design/ off-axis Three Mirror Anastigmatic (TMA) system/ wide field/ eliminating distortion分类
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赵文才,马军..双向大视场消畸变低温红外目标模拟光学系统设计[J].光学精密工程,2012,20(12):2619-2625,7.基金项目
国家863高技术研究发展计划资助项目(No.863-2-5-1-13B) （No.863-2-5-1-13B）
吉林省科技发展计划资助项目(No.20100524) （No.20100524）
科技部国际合作项目(No.2011DFA50590) （No.2011DFA50590）
