对焦式着陆探测相机光学系统设计

贺应红; 杨建峰; 马小龙; 吕娟; 薛彬; 李婷; 焦莹

doi:doi:10.3788/gzxb20144304.0422004

光子学报, 2014, 43 (4): 0422004, 网络出版: 2014-05-04

对焦式着陆探测相机光学系统设计

Optical System Design of Lander Camera with Focusing Type

论文大纲

贺应红 ^*杨建峰马小龙吕娟薛彬李婷焦莹

作者单位

中国科学院西安光学精密机械研究所, 西安 710072

深空探测光学设计对焦系统宽光谱测绘相机 Deep space exploration Optical design Focusing system Wide spectrum range Mapping camera

摘要

根据深空探测任务中对着陆器相机要求宽探测范围的需求，设计了一种对焦结构可见/近红外相机光学系统.系统采用准远心光学结构，由前固定组和后对焦组组成，前固定组属于一个无焦系统，后对焦组放于固定组后，当对远近目标成像时，移动对焦组可在像面上获得清晰成像，并且不同距离的目标对焦过程中，系统的焦距不发生改变.实验测得系统焦距为50 mm，F数为8，谱段范围为400~1 000 nm，能实现探测范围从0.8 m到无穷远目标的清晰成像; 成像质量高，光学传递函数接近衍射极限，畸变优于1%.对光学系统的公差进行了分析，表明该光学系统公差在现有加工水平下均能保证良好的成像性能，具有工程可实现性.研究表明该光学系统可应用于月球、火星、小行星等深空探测中着陆器的中等焦距的立体测绘相机.

Abstract

A optical system of lander optical payload was designed for the requirement of focusing on objects. A noval focusing type was made that the optical system could keep fixed focal length during focusing. An approaching telecentric optical structure is designed, the optical system was made up of front fixing lens unit and rear focusing lens unit. The front fixing lens is a kind of afocal optical system. The rear focusing lens is at the back of fixing lens unit. The optical can image objects from 0.8 m to infinity in focus by moving rear focusing lens unit. The optical system with spectral range from 400 to 1 000 nm, fixed focal length of 50 mm and F number of 8 can focus on objects located within the range of 0.8 meter to infinity. At last, The modulation transfer function of the optical system can reach to diffraction limit, and distortion is less 1%. The image quality can meet the requirement to the optical system. By the analysis of optical system tolerance, the optical system can keep good imaging quality after fabrication. The optical system can be used to explore moon, mars and asteroids.

参考文献

[1] SMITH P H. Imager for Mars Pathfinder experiment (IMP) a multispectral stereo imaging system［C］. SPIE, 1998, 3295: 4-9.

[2] SMITH G H, HAGEROTT E E C, SCHERR L M, et al. Optical designs for the Mars ′03 rover cameras［C］. SPIE, 2001, 4441: 118-131.

[3] GHAEMI F. Design and fabrication of lenses for the color science cameras aboard the Mars Science Laboratory rover［J］. Optical Engineering, 2009, 48(10): 1-15.

[4] REYNOLDS R O, SMITH P H, CROWE D G, et al. Design of a stereo multispectral CCD camera for Mars pathfinder［C］. SPIE, 1995, 2542: 197-206.

[5] EISENMAN A, LIEBE C C, MAIMONE M W, et al. Mars exploration rover engineering cameras［C］. SPIE, 2001, 4540: 288-297.

[6] 赵葆常, 杨建峰, 贺应红,等.探月光学［J］.光子学报, 2009, 38(3): 461-467.

ZHAO Bao-chang, YANG Jian-feng, HE Ying-hong, et al. Lunar exploration optics［J］. Acta Photonica Sinica, 2009, 38(3): 461-467.

[7] 欧阳自远, 李春来, 邹永廖, 等.我国月球探测一期工程的科学目标［J］.航天器工程, 2005, 14(1): 1-5.

OUYANG Zhi-yuan, LI Chun-lai, ZOU Yong-liao, et al. The scientific object of the first phase project of Chinese lunar exploration［J］. Spacecraft Engineering, 2005, 14(1): 1-5.

[8] 欧阳自远. 月球探测对推动科学技术发展的作用［J］. 航天器工程, 2007, 16(6):5-8.

OUYANG Zhi-yuan. Effect of lunar exploration for the development of science and technology［J］. Spacecraft Engineering, 2007, 16(6): 5-8.

[9] PINETA P, CERRONIB P, JOSSETC J. The advanced Moon micro-imager experiment (AMIE) on SMART-1: Scientific goals and expected results［J］. Planetary and Space Science, 2005, 53: 1309-1318.

[10] 李晓艳,钟伯亮. 内调焦摄远镜头的光学设计［J］. 光学技术, 2002, 28(4):299-301.

LI Xiao-yan, ZHONG Bo-liang. Optical design of telephoto lens with inner focusing［J］. Optical Technique, 2002, 28(4): 299-301.

[11] 李开端,赵育良,李英杰,等.面阵CCD 航空相机的自动对焦技术研究［J］. 光电工程, 2002, 29(5):22-24.

LI Kai-duan, ZHAO Yu-liang, LI Ying-jie, et al. Study on automatic focusing technique based on planar array CCD for aerial camera［J］. Opto-Electronic Engineering, 2002, 29(5): 22-24.

[12] 刘莹奇,龙夫年.宽光谱长焦距物镜的复消色差设计［J］. 光学技术, 2009,35(3):419-425.

LIU Ying-qi, LONG Fu-nian. Optical design of apochromatic objective of wide spectral and long focal［J］. Optical Technique, 2009, 35(3): 419-425.

[13] 李玉瑶,唐勇,林昭珩,等. 基于大面阵CCD 的复消色差航空相机物镜设计［J］. 光学学报, 2009,29(11):3183-3185.

LI Yu-yao, TANG Yong, LIN Zhao-heng, et al. Design of apochromatism objective lens of aerial camera based on large frame array CCD［J］. Acta Optica Sinica, 2009, 29(11): 3183-3185.

[14] 陈立武,杨建峰,洪庆华,等. 宽谱段折射式长焦光学镜头［J］.光子学报, 2004, 33(9): 1123-1126.

CHEN Li-wu, YANG Jian-feng, HONG Qi-hua, et al. Wide bands long focal refracting lens［J］. Acta Photonica Sinica, 2004, 33(9): 1123-1126.

[15] 陈立武,赵葆常,杨建峰等. 折射率、色散变化量与宽谱段傅氏镜二级光谱变化量的分析［J］. 光子学报, 2005, 34(9): 1355-1358.

CHEN Li-wu, ZHAO Bao-chang, YANG Jian-feng, et al. Analysis on increment of index of glass and increment of secondary spectrum of the wide bands FT lens［J］. Acta Photonica Sinica, 2005, 34(9): 1355-1358.

贺应红, 杨建峰, 马小龙, 吕娟, 薛彬, 李婷, 焦莹. 对焦式着陆探测相机光学系统设计[J]. 光子学报, 2014, 43(4): 0422004. HE Ying-hong, YANG Jian-feng, MA Xiao-long, LV Juan, XUE Bin, LI Ting, JIAO Ying. Optical System Design of Lander Camera with Focusing Type[J]. ACTA PHOTONICA SINICA, 2014, 43(4): 0422004.

对焦式着陆探测相机光学系统设计

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