Volume 5 Issue 6
Dec.  2012
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GONG Dun, TIAN Tie-yin, WANG Hong. Image quality testing of space remote sensing optical system under thermal environment[J]. Chinese Optics, 2012, 5(6): 602-609. doi: 10.3788/CO.20120506.0602
Citation: GONG Dun, TIAN Tie-yin, WANG Hong. Image quality testing of space remote sensing optical system under thermal environment[J]. Chinese Optics, 2012, 5(6): 602-609. doi: 10.3788/CO.20120506.0602

Image quality testing of space remote sensing optical system under thermal environment

doi: 10.3788/CO.20120506.0602
  • Received Date: 21 Sep 2012
  • Rev Recd Date: 23 Nov 2012
  • Publish Date: 10 Dec 2012
  • On the basis of the theoretical thermal optical analysis of off-axis three-mirror systems, the image quality of a space remote sensing optical system in different thermal environments was tested by using a thermal optical experiment. After the actually measured temperature was input into finite element model, the surface aberrations of mirrors with temperature gradients were obtained using finite element analysis software, and the surfaces with aberrations were fitted with the Zernike Polynomials. Then, Zernike coefficients were input into the optical design software, and the imaging qualities of system with difference temperature gradients were analyzed. Finally, the experimental results were compared. It shows that the theoretical analysis results are in agreement with the measured results, proving that the analysis is correct. Measured Modulation Transfer Functions(MTF) at Nquist frequency are 0.247 at 18 ℃ and 0.221-0.254 between 14-21 ℃, which meet the requirement of image quality.

     

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  • [1] 常军,翁志成,姜会林,等. 长焦距空间三反光学系统的设计[J]. 光学 精密工程 ,2001,9(4):315-318. CHANG J,WENG ZH CH,JIANG H L,et al.. Design of long focal length space optical system with three reflective mirror[J]. Opt. Precision Eng.,2001,9(4):315-318.(in Chinese) [2] 常军,翁志成,姜会林,等. 宽覆盖、离轴空间相机光学系统的设计[J]. 光学 精密工程 ,2003,11(1):55-58. CHANG J,WENG ZH CH,JIANG H L,et al.. Design of optical system for space camera with long focal length, wide coverage and high resolution[J]. Opt. Precision Eng.,2003,11(1):55-58.(in Chinese) [3] 徐亮, 赵建科, 周艳长,等. 长焦距、大视场空间观测相机光学系统设计[J]. 光学与光电技术 ,2010,8(6):64-66. XU L,ZHAO J K,ZHOU Y CH,et al.. Optical design of the space observation camera with long focal length and wide field of view[J]. Optics & Optoelectronic Technology,2010,8(6):64-66.(in Chinese) [4] LESNIEWSKI M. Simulation of the parameters for an optical system with coaxial radial thermal gradient[J]. SPIE,1999,3745:402-407. [5] 吴清文,卢泽生,卢锷,等. 空间光学遥感器热分析[J]. 光学 精密工程 ,2002,10(2):205-208. WU Q W,LU Z SH,LU E,et al.. Thermal analysis far a space optical remote sensor[J]. Opt. Precision Eng.,2002,10(2):205-208.(in Chinese) [6] 杨怿,张伟,陈时锦. 基于集成分析法的光机热一体化设计[J]. 光学技术 ,2005,31(3):394-397. YANG Y,ZHANG W,CHEN SH J. Thermal/structural/optical concurrent design based on integrated analysis technique[J]. Optical Technique,2005,31(3):394-397.(in Chinese) [7] 单宝忠,王淑岩,牛憨笨. Zernike多项式拟合方法及应用[J]. 光学 精密工程 ,2002,10(3):318-323. SHAN B ZH,WANG SH Y,NIU H B. Zernike polynomial fitting method and its application[J]. Opt. Precision Eng.,2002,10(3):318-323.(in Chinese) [8] 杨献伟,吴清文,李书胜,等. 空间光学遥感器热设计[J]. 中国光学 ,2011,4(2):139-146. YANG X W,WU Q W,LI SH SH,et al.. Thermal design of space optical remote sensor[J]. Chinese Optics,2011,4(2):139-146.(in Chinese) [9] 巩盾,王红,田铁印. 离轴三反射系统的热光学分析和温控指标的制定[J]. 光学 精密工程 ,2011,19(6):1213-1220. GONG D,WANG H,TIAN T Y. Temperature effect on imaging performance of three-line CCD satellite camera and temperature indicators affirmed[J]. Acta Optica Sinica,2010,30(8):85-90.(in Chinese) [10] 王家琪.光学仪器总体设计[M]. 长春:中国科学院长春光学精密机械与物理研究所,1998:3-5. WANG J Q. Total design of Optical Instrument[M]. Changchun:Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,1998:3-5.(in Chinese) [11] 张以漠.应用光学[M]. 北京:机械工业出版社,1987:375-378. ZHANG Y M. Applied Optics[M]. Beijing:Machine and Industry Publishing Company,1987:375-378.(in Chinese) [12] MALACARA D. Optical Shop Testing[M]. New Jersey:John Wiley & Sons,Inc.1978.
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