5. Assembling the microscope – condenser
• Using the condenser clamp, grip the light ring to be in-
stalled (the marking must be facing upwards and be leg-
ible), so that the cross piece of the light ring stands at
the center of the clamp’s lug and the upper edge of the
light ring is lying flat in the clamp holder. The numbering
should point to the top of the clamp. The light ring can be
grFiged by pressing down on the side prongs of the clamp
(Fig. 38).
• Two guiding ridges can be found on the bottom of the light
rings. These ridges must fit into the two grooves in the
opening.
The light ring must be inserted (condenser clamp from
above at a slight angle and at an angle of approx. 90° to
the housing) so that the mount is grips under the spring
clip of the holder (Fig. 38).
!
Caution!
Never press down on the spring clip. This can destroy the
clip or put the light ring in an unstable position.
Make sure that the light ring clicks into place (through ro-
tation) and loosen the clamp.
If necessary, carefully remove fingerprints (or dust) from
the prism.
• The light ring is precentered using the left centering
screw. The right centering screw must
never
limit the
range of movement.
• Write down the number of the opening and the light ring
designation so that the LAS software can be adjusted lat-
er.
• Remove the adjusting key and close the condenser again.
• Centering precision is achieved using the telescopic unit
after the microscope has been switched off.
For information on installing IC condenser prisms, continue
reading. Otherwise, jump ahead to
Page 28 Assembling
condensers.
Fig. 38: Inserting the prism
The designation must be visible when inserted and oriented to the cen-
ter of the condenser disk.
Otherwise, a DIC image cannot be produced.
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