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Locating the Centre Image
1.
Move the shutter from the centre channel to the
transmitted illumination pathway, the calibration
cube should remain in place.
2.
With the reflected & transmitted images located, it is
likely the centre image will be seen somewhere in the
field of view. If this is the case, small adjustments of
the H2 and V2 controls should be used to adjust this
image to mirror the location of the reflected image on
the camera chip.
3.
If no image is seen in the field, we will again scan the
image horizontally. For the centre channel image this
is achieved using the H2 control.
4.
If after scanning the horizontal axis no image can be
found, again open the input aperture slightly & repeat
step 3.
5.
Once the edges of the aperture have been found,
reduce the input aperture as previously, and centre
the image using H2 and V2.
Aligning the Split Images
1.
Remove the shutters from all pathways, keeping the
calibration cube in place. The images should be
approximately centred and overlaid at this point, so
the image splitting will occur centred on the system
optical axis.
2.
Separate the images by rotating the “split” control
counterclockwise until there are sited adjacent to
each other and separated by a narrow dark band.
3.
Fine adjustment of the images should be carried out
as described in section 3.2
The image splitter is now correctly aligned and ready
for use
