Optical system design of star camera with high precision better than second level

	Optical system design of star camera with high precision better than second level
	Wu, Y.; H. Wu; J. Zhang; L. Wang; Y. Zhu and X. Zhang
	2015
发表期刊	Zhongguo Jiguang/Chinese Journal of Lasers
卷号	42 期号:7
摘要	In order to achieve accurate positioning measurement, high precision star camera is the key equipment of the space mapping or reconnaissance camera. The difficulties of optical system design about star camera with long focal length are analysized. The new structure type of dual Gauss transited to telephoto is adopted, a subsecond star camera optical system is designed with focal length of 200 mm, relative aperture of F/2, angel of 7.57.5, spectrum range of 500~800 nm. Due to the characteristics of stellar temperature in large range, the color correction of optical system is realized without the use of special dispersion glass, the consistency of centroid position is achieved under different color temperatures of stellar. In order to compensate thermal drifting, negative temperature coefficient of refract index of the crown glass is adopted, by which sub-second precision of athermalization is come true. It is shown that, the distortion of the optical system is better than 0.003%, the lateral color aberration is less than 1.5 m, the accuracy of centroid position is better than 0.2 in the range of 2600 K~9800 K. Between 0 and 30, the change of focal length is less than 5.1 m, the accuracy of centroid position is better than 0.4, except the 1 field. , 2015, Science Press. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56387
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wu, Y.,H. Wu,J. Zhang,et al. Optical system design of star camera with high precision better than second level[J]. Zhongguo Jiguang/Chinese Journal of Lasers,2015,42(7).
APA	Wu, Y.,H. Wu,J. Zhang,L. Wang,&Y. Zhu and X. Zhang.(2015).Optical system design of star camera with high precision better than second level.Zhongguo Jiguang/Chinese Journal of Lasers,42(7).
MLA	Wu, Y.,et al."Optical system design of star camera with high precision better than second level".Zhongguo Jiguang/Chinese Journal of Lasers 42.7(2015).

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