%0 Journal Article
%T Phase Retrieval on Site Testing for Large Mirrors<br>大镜面在位检测中的相位恢复技术研究
%A LI Sheng-yi
%A HU Xiao-jun
%A WU Yu-lie
%A <br>李圣怡
%A 胡晓军
%A 吴宇列
%J 光子学报
%D 2009
%I 
%X To meet the requirement of on site testing in the manufacture of large mirror surfaces,a new method using phase retrieval technology was developed.A phase retrieval testing system based on the wave field at defocus was established together with the phase retrieval algorithm that serves the system.The testing system is simple and free from vibration,based on which,the error sources with testing precision and scope were analyzed in detail.The reliability for practical testing was also studied according to the requirement of on sit testing.The testing for a ball mirror of 430 mm aperture was carried out,where the affection from different testing configuration was also studied.The testing result showed high consistency compared with the result from interferometer.It shows that this method is feasible for high accuracy and suit for the requirement of polishing process.
%K Applied optics
%K Phase retrieval
%K Mirror surface testing
%K On-site testing<br>应用光学
%K 相位恢复
%K 镜面面形测量
%K 在位检测
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=52373E2EE21C210B84DEC16F7A05B2CC&yid=DE12191FBD62783C&vid=16D8618C6164A3ED&iid=0B39A22176CE99FB&sid=683005D16807E4FE&eid=0918129209B14F3E&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=10