17
CX31-P
}This adjustment brings the center of conoscopic image accurately on
the center of the field of view. It also ensures the rotation center of the
rotary stage to be matched perfectly after objective switching.
#The accuracy of the centering adapter for objective lens is guaran-
teed using the fixed combination of mount 1 and centering seat
2 by giving the same identification numbers. Do not change the
combination. (Example: 1 and U-CTAD1.)
1 Remove the specimen and engage the objective to be used in conoscopic
observation (one of 10x to 40x objectives) in the light path.
2. To set the reference light axis, engage the analyzer in the light path and
set to the cross-Nicol condition.
3. Set the Bertrand’s lens engaging/focusing knob to the ) (IN) position
and observe the conoscopic image.
To facilitate viewing of conoscopic image by brightening it, rotate the
analyzer slightly from the cross-Nicol position.
4. Insert the two centering knobs 4 provided with the centering adapter for
objective lens 3 into the two centering holes and turn the knobs so that
the center of the conoscopic image comes on the center of the cross
lines.
5. Set the Bertrand’s lens engaging/focusing knob to the ( (OUT) position
and disengage the analyzer from the light path.
6. Place the specimen on the stage and perform the operation in “ 2 Cen-
tering the Rotary Stage”.
7. Engage an objective other than the reference objective.
and, without
centering the rotary stage, turn only the centering knobs of the cen-
tering adapter for objective lens so that the rotation center coincides
with the center of field even when the rotary stage is rotated.
Fig. 25
Conoscopic image
3
(Figs. 25 to 27)
Fig. 26
Fig. 27
1
2
3
4
Adjusting the Centering Adapter
for Objective Lens
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