4.2 μm negative filter
| angle of incidence | 0° |
| Substrate | Ge |
| Spectrum | T>90%@3.6μm~4.06μm T>90%@4.48μm~4.9μm OD>1.5@4.15μm~4.4μm |
| Finish | 40/20 |
Measured Data
measured spectral curve
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