THORLABS BC106-UV, Operation Manual

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© 2011 Thorlabs
66 Thorlabs Beam 4.0
3.4.5 Ambient Light Correction
In general, it is highly recommended to shield ambient light from entering the
entrance aperture and use the supplied ND attenuation filters.
However, a considerably high ambient light level may occur within the camera
image. In such case, the interfering ambient light can be compensated.
Note
It is recommended to proceed with the ambient light correction after a 30min warm-
up time and repeat it if needed (e.g., ambient light conditions changed).
Open 'Options' 'Device Settings ...' from the Menu or click on within the
toolbar to open the Device Settings Panel. Select the right tab 'BC106 Settings' and
there the tab "Corrections"
Click "Start Correction", a dialog opens:
Make sure the laser is blocked, but not the ambient light, click "OK"; the correction
starts.
Note
Thorlabs Beam software uses a unique approach for Ambient Light Correction -
please see details in section
Application Notes .
When ambient light power is changed or a different ND filter is used, a new
correction is required, otherwise beam profiles are displayed using an unreal
(positive or negative) offset and accuracy of measurement data can be highly
reduced.
Any software restart, reconnect of a camera beam profiler or change of the ND
filter settings in the software disables ambient light correction.
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