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Optical system |
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Optical scheme |
Horizontal–symmetrical, astigmatism-compensated |
|
F-number |
1/3.3 |
|
Focal length |
99.3 mm |
|
Objectives |
Achromatized, distortion-compensated |
|
Flat field |
28 x 8 mm (20 x 8 mm with C-mount adapter) |
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Diffraction grating size |
40 x 40 x 6 mm |
|
Stray light (20 nm from 632.8 nm laser line) |
9 х 10-4 |
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Imaging |
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Horizontal magnification |
1.2 |
|
Vertical magnification |
1 |
|
Vertical spatial resolution |
50 μm |
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Spectral slits |
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Control |
Manual, with micrometer screw |
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Opening width |
Smoothly regulated from 0 up to 2.0 mm |
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Parallelism |
± 1 µm |
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Accuracy (slit width 1 mm) |
± 10 µm |
|
Repeatability |
± 1.5 µm |
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Reading accuracy (micrometer) |
2 µm |
|
Optics |
||
SL100M |
SL100M-UV |
|
Diffraction grating |
400 l/mm 500 nm |
400 l/mm 300 nm |
Wavelengths range limited by the constructive parameters |
360 – 1100 nm |
200 – 1100 nm |
Wavelengths range with diffraction grating efficiency >40% |
265 – 1000 nm |
200 – 600 nm |
Reciprocal linear dispersion (at blaze wavelength) |
18.38 nm/mm |
19.21 nm/mm |
Spectral resolution |
<0.35 nm |
<0.37 nm |
Repeatability |
± 0.1 nm |
± 0.1 nm |
Wavelength accuracy |
± 1 nm |
± 1 nm |
Dimensions and weight |
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Overall sizes (L x W x H) |
190 х 175 х 160 mm |
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Weight |
2 kg |