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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
Source PublicationModern Technologies in Space- and Ground-based Telescopes and Instrumentation II
Volume8450
Issue8450
PagesVol.8450 4Z-1-11
Conference Date2012-7-1
Conference PlaceAmsterdam, Netherlands
Funding OrganizationThe International Society for Optical Engineering
PublisherSPIE
Abstract
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.
KeywordHindle Method Aspherical Mirror Stitching Sub-aperture Convex Secondary Mirror
Subject Area天文镜面(材料、加工、检测)
Document Type会议论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/658
Collection中国科学院南京天文光学技术研究所_会议论文
大口径光学技术研究室_会议论文
Recommended Citation
GB/T 7714
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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