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Grating Links Catalogue Definitions Specifications Equations OEM Links OEM Products Gratings Spectrographs Monochromators Detectors Assemblies Design Table 6, Monograph Gratings A monograph is defined as a hybrid monochromator and spectrograph - that is, a spectrograph with a rotatable grating. Monograph gratings are aberration-corrected holographic concave gratings. See the optical diagram above for geometry and definition of length LA. MONOGRAPH GRATINGS Grooves per mm Disper. (nm/mm) Wavelength Range Spectrum Length (mm) LA (mm) F/# Size (mm) Reference Number 600 7.8 200-800 25 210 4.3 45 x 40 523 00 350 213 47 600-1200 6 99 2.9 34 dia. 523 00 330 400 12 480-1000 25 211 3 70 dia. 523 00 360 1200 2.3 250-800 25 271 3.8 70 dia 533 00 370

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