Dichroic Edge Pass, Long Edge Wide Angle Filter for Raman applications
785 LPF Wide Angle
Iridian Edge Pass filters are used to isolate one band of wavelengths from another by reflection or transmission. In Raman spectroscopy, edge pass filters are used to separate the excitation source wavelength from the emission wavelengths.
These circular filters offers superior performance for wider angle of incidence and cone half angles (CHA), with angle tuneable capability. They are typically used anywhere between 0° and 2°.
| Specifications |
| Laser Line (nm) | 785 |
| Blocking Level (OD) | 6 |
| Transition Width: Laser Line at 50% (cm-1) | 126 |
| Edge Steepness: OD6 at 50% (cm-1) | 63.4 |
| Pass Band (nm) | 795 – 1770 |
| Pass Band Level (%) | 93 |
| Angle of Incidence | 0° - 2° |
| Cone Half Angle | 5° |
| Outer Diameter (mm) | 25 +0/-0.2 |
| Clear Aperture (CA) (mm) | 21 |
| Thickness (mm) | 2 ±0.1 |
| Ring mounted | Yes |
| Ring Thickness (mm) | 3.5 ±0.1 |
| Scratch / Dig | 60/40 |
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