NP 120-2 Two-Channel Spectrograph
The NP 120-2 uses a modified Hill schematic with two pairs of off-axis parabolic
mirrors that form two independent optic channels. Besides selection of two spectrum
intervals by grating rotation, the Spectrograph allows quick change-over of gratings in
each channel.
Features
Diode arrays attachable
Contiuously variable slit
Small, compact and desingned to be easily mounted
Aspheric collimating and focusing mirrors
Easy grating interchange
Calibrated micrometer wavelength drives
Simultaneous detection of two independent spectra by single CCD-type detector
Specifications
| Focal Length (mm) |
125 |
| Aperture Ratio (input): |
parallel to the slit |
f/2.6 |
| normal to the slit |
f/6.9 |
| Aperture Ratio (exit) |
f/5.5 |
| Wavelength Range (nm) |
190 to 1200 |
| Resolution (nm)* |
0.3 |
| Wavelength Accuracy (nm)* |
<2 |
| Grating (G/mm) |
1200 |
300 |
| Blaze Wavelength (nm) |
400 |
500 |
| Dispersion (nm/mm)** |
6.37 |
25.59 |
| Focal plane (nm) |
17,5x8 |
| Width (mm) |
0 to 0.4 |
| Slit |
Scale division (mm) |
0.001 |
| Height (mm) |
1,2,3,4 |
| Micrometer screw |
Linear travel (mm) |
24 |
| Scale division (mm) |
0.01 |
| * With 1200 G/mm Grating |
|
