This filter screws into the front end of our OPM150 free beam heads. It may also be fitted into any of our OPM150 filter mounts.
This item is used to extend the power range of OPM150 free beam and integrating sphere detector heads by a factor of approximately 1000x. This is done by attenuating the input beam through absorption in the filter glass. The actual attenuation is wavelength dependant.
The filter is delivered with its own filter file matching the serial number of the filter. This filter file may then be loaded into the OPM150 software for calibrated measurement when the filter is mounted.
The adapter is fitted by hand.