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Gratings
Plane Ruled Gratings
High Energy Laser Gratings
Wide-Band Infrared Gratings
Echelle Gratings
Plane Holographic Gratings
Concave Holographic Gratings for Flat-Field Spectrograph
Concave Holographic Gratings for Monochromator
Transmission Gratings
Concave Holographic Gratings for Flat-Field Spectrograph

Aberration corrected flat field gratings are designed to focus a spectrum on a plane surface, making them ideal for use with linear or 2-D array detectors. These gratings are computer-optimized to form near-perfect images of the entrance slit on the detector plane. The relative location of grating to detector is kept fixed.

Part
Number
Grooves
(l/mm)
Spectral Region
(nm)
Spectrum Length
(mm)
Ruled Area
(HW mm2)

(°)
La
(mm)
H21-001
489.86
200-800
25.32
30x30
-6.65
77.36
H21-002
454.31
285-720
25.39
60
-11.30
130.00
H21-003
217.15
400-950
20.15
50
-2.50
84.90

Part
Number
Lb1
(mm)
Lb2
(mm)
Lh
(mm)
1
(°)
2
(°)
h
(°)
H21-001
66.98
78.00
64.27
12.35
30.52
-4.00
H21-002
130.00
128.00
127.97
3.80
-7.60
-6.34
H21-003
85.67
111.55
64.00
7.50
14.48
-40.51

 

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