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Home > Products > Optics > Diffraction Gratings > Concave Constant-Deviation Monochromator Gratings

Concave Constant-Deviation Monochromator Gratings
Concave Constant-Deviation Monochromator Gratings

    • 1200 and 1500 g/mm
  • 82.38, 104.65, and 112.2 mm substrate radii
  • BK 7 substrate
  • 28, 32, and 42.4 mm square sizes

Product Description Catalog PDF
Product Description
Concave holographic gratings function as both a dispersing and focusing element for monochromators. Benefits of concave gratings include a reduction of optics in a system (compared to a lens system) and decreased optical aberrations such as coma and astigmatism.


Ordering Information

a = incidence angle
r = distance from entrance slit to grating center
b = diffraction angle
r' = distance from grating center to image
2K = angle from diffracted beam to incident beam


 Quantity Model Grooves per mm Substrate Radius
(mm)		 Imaging Range ml1, ml2
(nm)		 Blaze Wavelength
(nm)		 Reciprocal Linear Dispersion
(nm/mm)		 Entrance Slit r
(mm)		 Exit Slit r'
(mm)		 Deviation Angle 2K
(deg)		 Ruled Area
(mm)		 Substrate Dimensions
(mm)		 Input f/no Price
  13MG1200-200 1200 112.2 200-800 200 8.5 100 94 61.6 30 x 30 32 x 32 3.6 
  17MG1200-450 1200 104.65 350-1590 450 7 105 100 34.7 40 x 40 42.4 x 42.4 2.5 
  11MG1500-250 1500 82.38 200-800 250 8 74.73 80 47.1 26 x 26 28 x 28 3.7 
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