具有实入瞳的远心离轴三反系统研究与设计

采用远心离轴三反成像系统的空间遥感仪器前有光束限制装置时，要求系统具有实入瞳与之匹配。为了满足这一需要，研究了孔径光阑位于主镜前与系统物方焦平面重合的离轴三反系统的设计问题，推导了主镜和三镜共面时离轴三反系统结构参数计算式及物方焦点与主镜间隔表达式，确定了实现系统物方焦点为实焦点的条件及其解法。据此，针对光谱范围为1.0～2.5 μm、F数为4、有效焦距为360 mm、视场为5°的设计要求，设计出整个波段全视场像质接近衍射极限的具有实入瞳的远心离轴三反系统，系统非球面最高次数为4次。设计结果表明，这种设计方法可用于实入瞳远心离轴三反成像系统的设计。

Abstract

If in the telecentric off-axis three-mirror imaging system there is a beam-limited device in front of space remote instrument, a real entrance pupil to match is required. To meet this need, optical design of off-axis three-mirror system whose aperture stop coincides with the object focal plane in front of the primary mirror is studied. The expressions of configuration parameters and the interval between the object focus and the primary mirror of off-axis three-mirror system are deduced in case that the primary mirror and the tertiary mirror are coplanar. The condition and solution of achieving real object focus are defined. Based on the method, with the specific requirements of 1.0～2.5 μm spectral range, F-number 4, 360 mm focal length, 5° field of view (FOV), a telecentric off-axis three-mirror system with real entrance pupil is designed. And the imaging quality of system approaches the diffraction limit at full FOV in the required wave band. The highest aspheric order is four. The result indicates that this method can be used in design of telecentric off-axis three-mirror imaging system with real entrance pupil.

参考文献

[1] Roland GEYL. Design and abrication of a three mirror flat field anastigmat for high resolution earth observation[C]. SPIE, 1994, 2210: 739～746

[2] 常军, 翁志成, 姜会林等. 用于空间的三反射镜光学系统设计［J］. 光学学报, 2003, 23(2): 216～219

Chang Jun, Weng Zhicheng, Jiang Huilin et al.. Design on three-reflective-mirror system used in space［J］. Acta Optica Sinica, 2003, 23(2): 216～219

[3] 郭永祥, 李英才, 梁天梅等. 一种大视场离轴三反射光学系统研究［J］. 光学学报, 2010, 30(9): 2680～2683

Guo Yongxiang, Li Yingcai, Liang Tianmei et al.. Optical design of the uncoaxial three-mirror system with wide field of view［J］. Acta Optica Sinica, 2010, 30(9): 2680～2683

[4] 郭永祥, 李英才, 吕保斌等. 一种新型无遮拦三反射光学系统研究［J］. 光学学报, 2010, 30(4): 1144～1146

Guo Yongxiang, Li Yingcai, Lü Baobin et al.. Design of new-style unobscured three-mirror optical system［J］. Acta Optica Sinica, 2010, 30(4): 1144～1146

[5] Takayuki Nakano, Yasuhisa Tamagawa. Configuration of an off-axis three-mirror system focused on compactness and brightness［J］. Appl. Opt., 2005, 44(5): 776～783

[6] 李旭阳, 李英才, 马臻等. 大F数长焦距空间相机光学系统设计［J］. 光学学报, 2010, 30(7): 2093～2097

Li Xuyang, Li Yingcai, Ma Zhen et al.. Optical system design of space camera with large F number and long focal length［J］. Acta Optica Sinica, 2010, 30(7): 2093～2097

[7] 李旭阳, 李英才, 马臻等. 消畸变、长焦距相机光学系统设计［J］. 光学学报, 2010, 30(9): 2657～2661

Li Xuyang, Li Yingcai, Ma Zhen et al.. Optical system design of space camera with long focal length and correction of image distortion［J］. Acta Optica Sinica, 2010, 30(9): 2657～2661

[8] Zhao Xiaoxia, Xie Yongjun, Zhao Wei. Broadband and wide field of view foveated imaging system in space［J］. Opt. Engng., 2008, 47(10): 103202

[9] Alexander F. H. Goetz, Gregg Vane Jerry E. Solomon, Barrett N. Rock. Imaging spectrometry for earth remote sensing［J］. Science, 1985, 228(4704): 1147～1153

[10] Kunihiro Tanikawa, Toshihiro Okamura, Jun-ichi Kudo. Multi-spectral sensor using off-axis three-mirror reflective optics for airborne surveillance[C]. SPIE, 1998, 3498: 390～399

[11] Jun-ichi Ishigaki, Toshihiro Okamura, Kunihiro Tanikawa et al.. Designing and testing of off-axis three-mirror optical system for multispectral sensor[C]. SPIE, 1997, 3061: 356～369

[12] 李欢, 向阳. 10°远心离轴三反消像散望远系统的光学设计［J］. 光子学报, 2009, 38(9): 2256～2259

Li Huan, Xiang Yang. Design of 10° FOV telecentric off-Axis three-mirror anastigmatic telescope［J］. Acta Photonica Sinica, 2009, 38(9): 2256～2259

[13] 黎明,吴清文, 余飞. 基于热光学分析的光学窗口玻璃厚度的优化［J］. 光学学报, 2010, 30(1): 210～213

Li Ming, Wu Qingwen, Yu Fei. Optimization of optical window glass thickness based on the thermal optical analysis［J］. Acta Optica Sinica, 2010, 30(1): 210～213

[14] 李欢, 向阳, 冯玉涛. 运动补偿成像光谱仪的地面分辨率［J］. 光学精密工程, 2009, 17(4): 745～749

Li Huan, Xiang Yang, Feng Yutao. Ground resolution for imaging spectrometer with motion compensation［J］. Opt. Precision Engng., 2009, 17(4): 745～749

[15] 潘君骅. 光学非球面的设计加工和检验［M］. 苏州: 苏州大学出版社, 2004. 130～141

Pan Junhua. The Design, Manufacture and Test of the Aspherical Optical Surfaces［M］. Suzhou: Soochow University Press, 2004. 130～141

刘晓梅, 向阳. 具有实入瞳的远心离轴三反系统研究与设计[J]. 光学学报, 2011, 31(11): 1122002. Liu Xiaomei, Xiang Yang. Research and Design of Telecentric Off-Axis Three-Mirror System with Real Entrance Pupil[J]. Acta Optica Sinica, 2011, 31(11): 1122002.

具有实入瞳的远心离轴三反系统研究与设计

关于本站 Cookie 的使用提示

全站搜索

具有实入瞳的远心离轴三反系统研究与设计

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索