LAMBDA DG-4 & 5 PLUS/USB OPERATION MANUAL – REV.
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cabinet and the output adapter. Insert the end of the light guide into the light guide port
until the top of the black end sleeve is even with the top of the light guide port. Tighten the
locking screw on light guide port to secure the end of the light guide in position. This should
result in maximal or near-maximal light output from the light guide. Minor adjustments up
from this position may improve output; the adjustments can be easily made once the system
is fully installed.
Figure 2-3. Liquid light guide installation.
2.3.3
Optical Holder
The free end of the light guide slides into one end of the optical holder tube (shown below).
The other end of the optical holder tube has a UV grade fused silica lens system (in the
“short cup”). By sliding the light guide toward or away from these lenses, the light guide
output can be collimated or brought to a focus. The optical holder, in turn, slides into the
dovetail adapter, which has a “dovetail” collar on one end. This collar is used to fasten the
entire assembly to the microscope system using an adapter (not shown) that is specific to the
microscope make and model. Refer to the documentation included with each microscope
adapter for further installation instructions.
Figure 2-4. Light guide optical holder.
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