NIAOT OpenIR  > 中国科学院南京天文光学技术研究所  > 会议论文
Wave-front Sensing and correction for 4-meter LAMOST
Xi Zhang; Deqing Ren; Yongtian Zhu; Jiangpei Dou
2009-09-17
Source PublicationAstronomical and Space Optical Systems
Volume7439
Issue7439
PagesVol.7439 0V-1-12
Conference Date2008-8-2
Conference PlaceSan Diego, CA
Funding OrganizationThe International Society for Optical Engineering
PublisherSPIE
Abstract
LAMOST is a 4m spectroscopic telescope recently operational at Xinglong, China. Several active optics are being used to remove optical aberration of the telescope, but large residual aberration exists since the active optics actuators on the telescope’s segmented mirrors cannot provide enough precision. We proposed a wave-front sensing system and the corresponding algorithm to measure this low frequency residual aberration. We developed a compact Shack-Hartmann wave-front sensor that can
use point source as well as extended structure images for wave-front sensing and can achieve good measurement accuracy. The wave-front sensing algorithm is realized by LabVIEW that is based on block-diagram programming and is suitable for rapid prototype development. Combined with deformable mirrors, the system will be able to provide a fine wave-front correction and therefore eventually remove the residual aberration for LAMOST. The wave-front sensor and the DMs will also be used for our high-contrast imaging coronagraph to remove speckle noise for the direct imaging of exoplanets.
KeywordWave-front Sensing Residual Aberration Lamost Labview
Subject Area郭守敬望远镜(lamost) ; 主动光学
Document Type会议论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/578
Collection中国科学院南京天文光学技术研究所_会议论文
天文光谱和高分辨成像技术研究室_会议论文
Recommended Citation
GB/T 7714
Xi Zhang,Deqing Ren,Yongtian Zhu,et al. Wave-front Sensing and correction for 4-meter LAMOST[C]:SPIE,2009:Vol.7439 0V-1-12.
Files in This Item: Download All
File Name/Size DocType Version Access License
Wave-front Sensing a(425KB) 开放获取CC BY-NC-NDView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xi Zhang]'s Articles
[Deqing Ren]'s Articles
[Yongtian Zhu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xi Zhang]'s Articles
[Deqing Ren]'s Articles
[Yongtian Zhu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xi Zhang]'s Articles
[Deqing Ren]'s Articles
[Yongtian Zhu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Wave-front Sensing and correction for 4-m eter LAMOST.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.