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Title:
SUPPORTING AND ADJUSTING METHOD FOR RESTRAINING ASTIGMATISM OF A LARGE MIRROR SURFACE
Document Type and Number:
WIPO Patent Application WO/2010/034144
Kind Code:
A1
Abstract:
A supporting and adjusting method for suppressing astigmatism of a large mirror surface (1) comprises the following steps: detecting the wave front distortion in a optical system which comprises the large mirror surface or detecting the surface profile of the large mirror surface; using a data fitting method to obtain the direction (b) and size of the astigmatism; after adjusting the mirror surface along the direction of the astigmatism using a cross shaped supporting and adjusting method, detecting the wave front distortion or the surface profile again; using the data fitting method to obtain the direction and size of the adjusted astigmatism; if the wave front distortion is reduced or the surface profile is closer to a design result, adjusting the mirror surface along the same direction again, and vice-versa; repeating the steps mentioned above until satisfying the design result.

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Inventors:
DUAN XUETING (CN)
ZHOU RENKUI (CN)
WEI SHUNGEN (CN)
CHE CHICHENG (CN)
LI YINGCAI (CN)
Application Number:
PCT/CN2008/002127
Publication Date:
April 01, 2010
Filing Date:
December 30, 2008
Export Citation:
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Assignee:
XI AN OPTICS PRECISION MECH (CN)
DUAN XUETING (CN)
ZHOU RENKUI (CN)
WEI SHUNGEN (CN)
CHE CHICHENG (CN)
LI YINGCAI (CN)
International Classes:
G02B7/185; G02B5/08; G02B7/183
Foreign References:
US20020089734A12002-07-11
CN1162754A1997-10-22
JPS5958402A1984-04-04
US20030147161A12003-08-07
JP2006011051A2006-01-12
US20040165287A12004-08-26
CN2473625Y2002-01-23
Attorney, Agent or Firm:
XI'AN ZHIBANG PATENT & TRADEMARK AGENT CO., LTD. (Xi'an, Shaanxi 8, CN)
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