Long Pass Filter for Fluorescence applications
499 DM
Iridian DM series filters can be described as polarisation insensitive dichroic beamsplitters. They are typically used at angle of incidence of 45° ±1.5° to reflect (or transmit) excitation light to a sample, and transmit (or reflect) the emitted signal to a detector.
The DM filters have very high and flat reflection and transmission bands separated by a steep edge, making them ideal for applications that require beam splitting or wavelength separation.
| Specifications |
| Pass Band (nm) |
508 to 675 |
| Pass Band Level (%) |
> 90 avg. |
| Reflection Band (nm) |
470 to 490 |
| Reflectance (%) |
> 90 avg. |
| Angle of Incidence |
43.5° to 46.5° |
| Cone Half Angle |
2° |
| Width (mm) |
35.6 ±0.1 |
| Height (mm) |
25.2 ±0.1 |
| Thickness (mm) |
1.05 ±0.05 |
| Clear Aperture (%) |
80 elliptical |
| Flatness |
2λ |
| Parallelism |
180″ |
| Surface Quality |
60/40 |
| |
Iridian website
