Monochromators and SPE · Imaging Monochromator
Omni-λ2042i
Imaging Monochromator | UV coating based on Omni-λ2002i
Product range
Where Omni-λ2042i fits
Omni-λ2042i is listed in the Imaging Monochromator family. The local catalog record provides these first selection fields: Focal length: 200 mm; Aperture ratio: f/3.5; Resolution (PMT): 0.15 nm.
Specifications
| Focal length | 200 mm |
|---|---|
| Aperture ratio | f/3.5 |
| Resolution (PMT) | 0.15 nm |
| Resolution (CCD, 26 µm) | 0.27 nm |
| Dispersion | 3.58 nm/mm |
| Measurement conditions | 1200 g/mm grating at 435.8 nm, 10 µm slit width; PMT at 4 mm slit height, CCD with 26 µm pixels |
| Wavelength accuracy | ±0.2 nm |
| Wavelength repeatability | ±0.1 nm |
| Step size | 0.01 nm |
| Stray light | 5×10⁻⁵ |
| Focal plane size | 30 (w) × 14 (h) mm |
| Optical axis height | 146 mm |
| Slit | Width 0.01–3 mm, motorised or manual; height 2, 4 or 14 mm selectable |
| Grating size | 50 × 50 mm |
| Interface | USB 2.0 |
| Dimensions | 300 × 216 × 213 mm |
| Weight | 14 kg |
Product comparison
Check a reference product
Considering Omni-λ2042i for an existing setup? Send us the reference product number and your required specifications. Our engineers can help check the function, configuration, dimensions and interfaces.
Ask our engineers →System integration
Integration and compatibility
Use these checks to connect Omni-λ2042i to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
- Spectral range and resolution
- Resolution (PMT): 0.15 nm · Resolution (CCD, 26 µm): 0.27 nm
- Resolution is a budget, not a property: focal length, groove density, slit width, diffraction order and detector pixel pitch all enter it, and the quoted figure applies only at the wavelength and slit width it was measured at.
- Grating and dispersion
- Focal length: 200 mm · Dispersion: 3.58 nm/mm
- Confirm the installed gratings, their blaze wavelength and the turret population. A shared chassis name does not imply the same grating set, and blaze position decides efficiency far more than groove density alone.
- Slits and optical ports
- Aperture ratio: f/3.5 · Slit: Width 0.01–3 mm, motorised or manual; height 2, 4 or 14 mm selectable
- Match the input f-number to the instrument, not the other way round. Overfilling the acceptance cone adds stray light and no signal; underfilling wastes throughput you have already paid for in aperture.
- Detector interface
- Focal plane size: 30 (w) × 14 (h) mm · Interface: USB 2.0
- Match the detector active height and pixel pitch to the focal-plane dispersion before committing to a mount, then confirm wavelength calibration, scan repeatability and trigger behaviour for the acquisition you intend.
Technical FAQ
Integration questions for Omni-λ2042i
What spectral range and resolution does the Omni-λ2042i cover?
Resolution (PMT): 0.15 nm · Resolution (CCD, 26 µm): 0.27 nm. Resolution is a budget, not a property: focal length, groove density, slit width, diffraction order and detector pixel pitch all enter it, and the quoted figure applies only at the wavelength and slit width it was measured at.
Which gratings does the Omni-λ2042i take?
Focal length: 200 mm · Dispersion: 3.58 nm/mm. Confirm the installed gratings, their blaze wavelength and the turret population. A shared chassis name does not imply the same grating set, and blaze position decides efficiency far more than groove density alone.
What slit and port configuration does the Omni-λ2042i have?
Aperture ratio: f/3.5 · Slit: Width 0.01–3 mm, motorised or manual; height 2, 4 or 14 mm selectable. Match the input f-number to the instrument, not the other way round. Overfilling the acceptance cone adds stray light and no signal; underfilling wastes throughput you have already paid for in aperture.
Which detectors mount to the Omni-λ2042i?
Focal plane size: 30 (w) × 14 (h) mm · Interface: USB 2.0. Match the detector active height and pixel pitch to the focal-plane dispersion before committing to a mount, then confirm wavelength calibration, scan repeatability and trigger behaviour for the acquisition you intend.
Model selection
Nearby series comparison
Compare Omni-λ2042i with the closest available models in the Imaging Monochromator family.
| Selection parameter | Omni-λ2042i (current) | Omni-λ2019i | Omni-λ2043i |
|---|---|---|---|
| Spectral range | ±0.2 nm | ±0.2 nm | ±0.2 nm |
| Resolution | 0.15 nm | 0.15 nm | 0.15 nm |
| Focal length / f-number | 200 mm | 200 mm | 200 mm |
| Grating | 50 × 50 mm | 50 × 50 mm | 50 × 50 mm |
Related products
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