A glass substrate carrying a layer of deposited aluminum that has been pressure-ruled with a large number of fine equidistant grooves, using a diamond edge as a tool. Light falling on such a grating is dispersed into a series of spectra on both sides of the incident beam, the angular dispersion being inversely proportional to the line spacing.
Changchun Fortune Optronics Inc. could manufacture various Diffraction Gratings: Original Diffraction Gratings and Replicated Diffraction Gratings.
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