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タイトルRadius of Curvature Measurement of Large Optics Using Interferometry and Laser Tracker
本文(外部サイト)http://hdl.handle.net/2060/20110011965
著者(英)Hagopian, John; Connelly, Joseph
著者所属(英)NASA Goddard Space Flight Center
発行日2011-04-01
言語eng
内容記述The determination of radius of curvature (ROC) of optics typically uses either a phase measuring interferometer on an adjustable stage to determine the position of the ROC and the optics surface under test. Alternatively, a spherometer or a profilometer are used for this measurement. The difficulty of this approach is that for large optics, translation of the interferometer or optic under test is problematic because of the distance of translation required and the mass of the optic. Profilometry and spherometry are alternative techniques that can work, but require a profilometer or a measurement of subapertures of the optic. The proposed approach allows a measurement of the optic figure simultaneous with the full aperture radius of curvature.
NASA分類Technology Utilization and Surface Transportation
レポートNOGSC-15941-1
権利Copyright, Distribution as joint owner in the copyright
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/499714


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