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4.
Adjust the vertical position of the reflected image
using V1 to centre the image. The vertical field aper-
ture size can be adjusted at this point to optimise the
sensor use.
5.
Adjust the vertical height of the transmitted image
using V3 to centre.
6.
Adjust the horizontal position of the transmitted
image using H3 so the outer edge of the image is just
inside the sensor edge. If the images overlap, or there
is a large gap between them, then adjust the horizon-
tal field aperture size to optimise the sensor use, then
readjustment of the split control will allow the outer
edges of the images to be repositioned.
3.5
Locating the OptoSplit images on the camera
If the OptoSplit III controls have been badly misaligned, the images can
show significant aberrations, or in extreme cases only a single image
may be observable for any setting of the ‘Split’ control. In these cases
the following procedure will enable the device setup to be reconfig-
ured.
Locating the Reflected Image
1.
Fit the system calibration cube & shutter the transmit-
ted and centre illumination pathways using the shutter
Direction
of light
Reflected image
Centre image
Transmitted image
Split control
