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《Infrared Technology》 2011-01
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Lightweight Structure Design,Analysis and Test of Lager Aperture and Prime Focus Optical System

WANG Fu-guo,YANG Fei,CHEN Bao-gang,LI Yan-wei(Changchun Institute of Optics,Fine Mechanics and Physics,the Chinese Academy of Sciences,Changchun 130033,China)  
Based on the characteristic of prime focus optical system,we adopt modularization design of a ?700 mm polaxis telescope opticmechanical structure.Finite element analysis and optimization on primary mirror cell component,joint cylinder,corrective lens cylinder and the whole system structure were carried out.As a result,the whole system weight is less than 700 kg,and the system flexure doesn't exceed 4?.The system image quality is tested by collimator,and the result indicates that the system 80% energy concentrate degree is in 4×4 pixel;the system image quality is perfect,satisfying design target;the opticmechanical structure is reasonable;the modularization design makes the assembly and adjustment is convenient and simple.
【Fund】: 863计划资助项目
【CateGory Index】: TH74
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