Method for manufacturing diffraction grating
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United States of America Patent
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Aug 12, 2014
Grant Date -
Oct 25, 2012
app pub date -
Jun 29, 2012
filing date -
Nov 5, 2007
priority date (Note) -
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Abstract
A method for manufacturing a diffraction grating comprises below steps. Firstly providing a substrate which having a first surface and a second surface opposite to the first surface. Then providing a first predetermined function associated with arrangement of the grooves of the first grating and a second predetermined function associated with arrangement of the grooves of the second grating. Thirdly transforming the first function into a first Fourier series and transforming the second function into a second Fourier series. Fourthly forming the first grating on the first surface of the substrate using a fast tool sever system according to the first Fourier series. Lastly forming the second grating on the second surface using the fast tool sever system according to the second Fourier series.
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