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| Brand | HORIBA |
|---|---|
| Origin | France |
| Model | FHR640 / FHR1000 |
| Focal Length | 640 mm (FHR640) / 1000 mm (FHR1000) |
| f-number | f/5.4 (FHR640) / f/9.0 (FHR1000) |
| Spectral Resolution | 0.016 nm (FHR640) / 0.010 nm (FHR1000) |
| Spectral Dispersion | 1.2 nm/mm (FHR640) / 0.8 nm/mm (FHR1000) |
| Grating Size | 110 × 110 mm (single) / 80 × 110 mm (dual) |
| Wavelength Accuracy | ±0.05 nm |
| Wavelength Repeatability | ±0.015 nm |
| Scan Speed | >300 nm/s |
| Optical Design | Monolithic cast aluminum body with in-axis grating scanning mechanism |
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