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- W2003524721 abstract "The Ronchi grating is applied to measure the large-aperture aspheric surfaces in a quantitative way on the basis of self-made software which includes Ronchi null grating design, collection of Ronchi graph, and data processing. The measured concave parabolic mirror has a diameter of 630 mm and an F number of 1.34. The measurement result is approximately the same as that of the ZYGO interferometer. This analysis software and test method establish a good foundation for the quantitative measurement of the big error about the large-aperture aspheric surfaces of the next generation telescope." @default.
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- W2003524721 date "2009-01-01" @default.
- W2003524721 modified "2023-10-14" @default.
- W2003524721 title "Quantitative measurement of Phi630 mm F/1.34 parabolic surfaces with Ronchi grating test method" @default.
- W2003524721 doi "https://doi.org/10.3788/col20090707.0590" @default.
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