RC telescope alignment based on out-of-focus stellar image

SUN Jing-wei; CHEN Tao; WANG Jian-li; ZHANG Jin-kai

doi:10.3788/OPE.20111904.0728

您当前的位置：

首页 >

文章列表页 >

RC telescope alignment based on out-of-focus stellar image

Article | 更新时间：2020-08-12

- RC telescope alignment based on out-of-focus stellar image
- Optics and Precision Engineering Vol. 19, Issue 4, Pages: 728-736(2011)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
  2. 中国科学院研究生院,北京 100039
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111904.0728
  CLC： TH743
- Received：20 April 2010，
  
  Revised：28 May 2010，
  
  Published Online：26 April 2011，
  
  Published：26 April 2011
- 稿件说明：
移动端阅览
孙敬伟, 陈涛, 王建立, 张金凯. 基于离焦星点图的RC式望远镜装调技术[J]. 光学精密工程, 2011,19(4): 728-736

SUN Jing-wei, CHEN Tao, WANG Jian-li, ZHANG Jin-kai. RC telescope alignment based on out-of-focus stellar image[J]. Editorial Office of Optics and Precision Engineering, 2011,19(4): 728-736
孙敬伟, 陈涛, 王建立, 张金凯. 基于离焦星点图的RC式望远镜装调技术[J]. 光学精密工程, 2011,19(4): 728-736 DOI： 10.3788/OPE.20111904.0728.

SUN Jing-wei, CHEN Tao, WANG Jian-li, ZHANG Jin-kai. RC telescope alignment based on out-of-focus stellar image[J]. Editorial Office of Optics and Precision Engineering, 2011,19(4): 728-736 DOI： 10.3788/OPE.20111904.0728.

摘要

为了实现大口径望远镜的装调

基于离焦星点图的图像处理和分析

研究了RC式望远镜的装调技术。首先

根据横向几何像差分析离焦像点图像和系统装调误差之间的关系

重点讨论了横向误差中离心和倾斜导致的偏心彗差和内外轮廓圆的圆心位置偏离距离的关系

以及彗差消除后残余的像散导致外轮廓椭圆的偏心率随长轴增大而逐渐减小的特点。然后

分析了主次镜之间纵向误差导致的球差和最小圆半径大小的关系。最后

应用Zemax建模仿真验证了上述分析

总结了如何应用离焦星点图指导装调过程以及图像处理的方法。实验结果表明:无论是横向误差还是纵向误差

应用该方法得到的实验结果和理论分析值均符合得很好

其中通过倾斜调整彗差和偏心率调整像散误差均可控制在5%以内。

Abstract

In order to realize the alignment of large aperture telescopes

the RC telescope alignment techniques were investigated based on the image processing and analysis of out-of-focus stellar images. Firstly

the relationship between the disalignment comas due to decentered or tilted errors and the centers of contour circle was analyzed according to transversal aberration. The decrease of ellipse eccentricity with the increase of major axis length caused by residual astigmatism were investigated after removing the coma. Then

the dependence of spherical aberration caused by longitudinal errors on the least circle radius of defocused stellar image was analyzed. Finally

the analysis above was verified by the emulation of Zemax modeling and how to use the out-of-focus stellar image to guide the alignment process and how to process the image were discussed. Experimental results indicate that both the lateral and longitudinal errors are well consistent with the theoretically analyzed results. The precision errors of coma and astigmatism adjusted respectively by tilt and eccentricity are both less than 5%.

关键词

Keywords

references

赵勇志,张景旭,吴小霞,等. 1 m望远镜俯仰轴系精度检测误差的修正[J]. 光学精密工程, 2009,17(10):2401 -2405. ZHAO Y Z, ZHANG J X, WU X X,et al.. Modification of altitude axis errors for 1 m aperture telescopes [J]. Opt. Precision Eng.,,2009,17(10):2401 -2405. (in Chinese)[2] 陈浩,宣丽,胡立发,等. 1 200 mm望远镜开环液晶自适应光学系统设计[J]. 光学精密工程,2010,18(1):29 -36. CHEN H, XUAN L, HU L F, et al.. Design of open-loop liquid crystal adaptive optical system for 1200mm telescope [J]. Opt. Precision Eng., 2010,18(1):29-36.(in Chinese)[3] 明名,王建立,张景旭,等. 大口径望远镜光学系统的误差分配与分析[J]. 光学精密工程,2009,17(1):104-108. MING M, WANG J L, ZHANG J X, et al.. Error budget and analysis for optical system in large telescope [J]. Opt. Precision Eng., 2009,17(1):104-108.(in Chinese)[4] LIU J F, LONG F N, ZHANG W. Study on computer-aided alignment method[J]. SPIE, 2005,5638:674-681.[5] 马品仲. Shack-Hartmann法在4.3 m望远镜中的应用设计[J]. 光学技术,1994,3(4):28-38. MA P J. Shack-Hartmann wavefront sensor for 4.3 m telescope[J]. Optical Technique, 1994,3(4):28-38.(in Chinese)[6] RODDIER C, RODDIER F. Wave-front reconstruction from defocused images and the testing of ground-based optical telescopes[J]. Optical Society of America, 1993,10(11):2277-2287.[7] ANASTACIS M, DONALD W, SCOT S, et al.. Curvature wavefront sensing performance evaluation for active correction of the large synoptic survey telescope[J]. Optics Express, 2010,18:1528-1552.[8] LUNA E, CORDERO A, VALDEZ J, et al.. Telescope alignment by out-of-focus stellar image analysis[J]. The Astronomical Society of the Pacific, 1999,111:104-110.[9] Alignment of the Pan-Starrs PS1 prototype telescope optics[J]. SPIE, 2008,7012:1-15.[10] SCHMID T, THOMPSON K, ROLLAND J. Alignment of two mirror astronomical telescopes(the astigmatism component)[J]. SPIE, 2008,7017:1-12.[11] WILSON R N. Reflecting Telescope optics I: Basic Design Theory and its Historical Development[M]. Germany: Springer, 1996.[12] WILSON R N. Reflecting Telescope optics II: Manufacture Testing Alignment Modern Techniques[M]. Germany: Springer, 1996.[13] WETHERELL W B, RIMMER M P. General analysis of aplanatic cassegrain, gregorian, and schwarzschild telescopes[J]. Applied Optics, 1972,11(12):2817-2832.

Views

770

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Optimization and reconstruction of progressive addition free-form surface lens

Alignment of multi-beam laser emission system

Anastigmatic design of imaging spectrometer with varied line-space convex grating

Design and alignment of support structure for off-axis multi-mirror system

Optical alignment of all-reflective afocal ZH optical system

Related Author

ZHANG Dawei

ZHENG Zexi

WANG Yaqiong

XIANG Huazhong

ZHANG Yunjin

Chao YANG

He-fei LIU

Yang LI

Related Institution

School of Health Science and Engineering，University of Shanghai for Science and Technology

School of Mechanical Engineering， University of Shanghai for Science and Technology

School of Optical-Eletrical and Computer Engineering，University of Shanghai for Science and Technology

Beijing Institute of Space Mechanics & Electricity

Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176855 Email：gxjmgc@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰