Changchun Realpoo Photoelectric Co.,Ltd.
What is Flat Field Holographic Concave Gratings?
Flat Field Concave Holographic Gratings are aberration corrected holographic gratings. The spectral images of the entrance slit are focused on a flat plane, so a flat detector array can detect the spectral intensity information simultaneously.
Flat surface holographic concave grating is a reflection grating made by double-beam interference method, the main use is small flat spectrometer and fully automatic biochemical analysis instrument, the grating does not need to rotate only the incident slit, the receiver is CCD triode array can be, the spectral range can be from ultraviolet to near infrared band.
Catalogue for Flat Field Holographic Concave Grating
Item
Size(mm)
Groove Density(L/mm)
LA(mm)
LH(mm)
Included Angle(Degree)
Spectrum Length(mm)
Wavelength Range(nm)
1
Dia 48 x 10
200
84.92
63.91
41.954
20
200-800
2
Dia 48 x 10
217
84.9
64
40.5
20
400-450
3
Dia 42 x 39 x 8
925
83
83
3
12.5
195-325
4
Dia 33.5 x 30 x 5
925
83
83
3
12.5
195-325
5
Dia 30 x30 x10
800
86.3
85.9
0
40
340-850
6
Dia 30 x 30 x10
780
86.3
85.9
0
200-800
7
Dia 20, Dia 40, Dia 50, Dia 70
230
137.357
126.75
14.7
23.3
400-1100
8
Dia 20, Dia 40, Dia 50, Dia 70
405
137.357
130.86
11.05
24
380-780
9
Dia 20, Dia 40, Dia 50, Dia 70
285
137.357
130.86
8.72
25.1
190-800
10
20 x 20
730
103.28
87.39
37
36.5
340-800
