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Development of testing convex hyperbolic mirror using Hindle method based on stitching technology
Zi-bo Jiang; Xin-nan Li; Bo Ji
2012-09-13
会议录名称Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II
卷号8450
期号8450
页码Vol.8450 4Z-1-11
会议日期2012-7-1
会议地点Amsterdam, Netherlands
会议主办者The International Society for Optical Engineering
出版者SPIE
摘要
The test method of Large-diameter convex secondary mirror in development process is the key to making large telescope technology. Classical means HINDLE to test using of non-aberration points needs a spherical reflecting mirror which larger than the secondary mirror several times. This new Hindle test method based on stitching technology can significantly reduce their standard mirror’s size, drop the difficulty of processing and cut down the costs. In This paper, the Hindle testing basic principles which base on stitching technology is introduced firstly, then principle of stitching and least square method. Following the parameters of inside and outside standard mirrors are derived. Then translation and rotation transformation algorithm of different sub-aperture interferometer array data is given. Finally the preliminary results of the radial stitching experiments are given. The results showed that the relative error is RMS=6.1%, PV=5.11%. With improving and perfection, this method can be used in the E-ELT, CFGT convex secondary mirror telescope test.
关键词Hindle Method Aspherical Mirror Stitching Sub-aperture Convex Secondary Mirror
学科领域天文镜面(材料、加工、检测)
文献类型会议论文
条目标识符http://ir.niaot.ac.cn/handle/114a32/658
专题会议论文
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Zi-bo Jiang,Xin-nan Li,Bo Ji. Development of testing convex hyperbolic mirror using Hindle method based on stitching technology[C]:SPIE,2012:Vol.8450 4Z-1-11.
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