General Spectrometer Specifications
Optical Specifications
| VIS | VIS-NIR | |
| Spectral Range | 350-730 nm | 350-920 nm |
| Spectral Resolution (20 µm slit) | 1.3 nm | |
| Spectral Bands (20 µm slit) | 284 | 425 |
| F/# | 2.3 | |
| Focal Length | 157.7 mm | |
| Grating Dispersion | 51.8 nm/mm | |
| Grating Blaze | 575 nm | |
| Grating Groove Density | 401 g/mm | |
| Max Keystone | <15 µm | |
| Spectral Tilt 1 | <15 µm | |
| Smile | <15 µm | |
| Spectrometer Magnification | 1:1 | |
| RMS Spot Radius (at 500 nm) | <12 µm | |
| Max Spatial Image Height | 4 mm | |
| Wavelength Accuracy | <0.1 nm | |
Electronic Specifications
| VIS | VIS-NIR | |
| Sensor Model | IMX 226 | IMX 174 |
| Sensor Type | CMOS | CMOS |
| Digital Resolution | 0.09 nm/px | 0.29 nm/px |
| Pixel Size | 1.85 x 1.85 µm | 5.86 x 5.86 µm |
| Active Pixels 2 | 2160 x 4024 | 682 x 1936 |
| Dynamic Range | 65 dB | 71.7 dB |
| Full Well | 10.5 ke- | 30 ke- |
| Frame Rate 2 | 35 FPS (8 bit) | 220 FPS (8 bit) |
| 28.2 FPS (10 bit) | 167 FPS (12 bit) | |
| ADC | 8, 10 bits | 8, 10, 12 bits |
| Shutter | Rolling shutter, Global reset shutter | Global shutter |
| Power | USB bus power 5 VDC | |
Dimensions and Weight 3
| VIS | VIS-NIR | |
| Weight | 1.5 lbs (680 g) | |
| Dimensions (W x D x H) | 2 x 3.5 x 2 in (51 x 90 x 51 mm) | |
1 Versus a sensor row.
2 For the maximum 4 mm image height.
3 Not including a lens.
Spectral Resolution vs. Slit Size
| Slit Width 1 | 20 µm | 32 µm | 45 µm | 100 µm | 200 µm |
| Spectral Resolution 2 (FWHM) | 1.3 nm | 1.9 nm | 2.6 nm | 5.5 nm | 10.7 nm |
| Spectral Bands 3 (VIS) | 284 | 200 | 146 | 69 | 36 |
| Spectral Bands 3 (VIS-NIR) | 425 | 300 | 219 | 104 | 53 |
1 Custom slit widths available upon request.
2 Max spectral line width (FWHM) for all peaks in the image.
3 The number of spectral bands is the wavelength range/wavelength resolution (FWHM).
