© 2007-2012 Thorlabs GmbH
28 WFS Series
3.2
Exchanging the Microlens Arrays
Thorlabs Wavefront Sensors WFS150-5C, WFS150-7AR, WFS300-14AR and
WFS10-5C, WFS10-7AR, WFS10-14AR are equipped with exchangeable
microlens arrays MLA150M-5C, MLA150M-7AR and MLA300M-14AR, respectively.
Due to its precision patent pending magnetic holder it is very easy to switch between
different mounted MLAs. See chapter Parts List for details.
This Pickup-Tool is automatically supplied with your WFS instrument when you
have ordered it with more than one calibrated MLA or when you returned your WFS
instrument for adding calibration data for a second MLA.
Follow these steps to exchange an installed MLA1 with MLA2:
Screw the Pickup-tool into the MLA1 currently mounted within the WFS instrument
Pull MLA1 out of the instrument along its optical axis
Unscrew and remove the pickup-tool from MLA1
Pack MLA1 into a dust-proof storage box
Unpack MLA2 and screw the pickup-tool into it
Clean MLA2 using compressed air, keep a safety distance of at least 4
inches (10 cm)!
Insert MLA2 along the optical axis into the WFS instrument, whereas the pickup-
whole is up
Tell the WFS software that the MLA was changed
NOTE
It is essential for the wavefront measurement to set the name of the currently installed
MLA within the WFS software!
On startup of the WFS software use this dialog to define one of the selected MLA
your WFS instrument is calibrated for. See Start the GUI for details.
During WFS operation, go to the Wavefront Setup and select the actual
mounted MLA from the pull down list.
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