Olympus IX2 RFAEVA2 - Manual (Page 19)

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IX2-RFAEVA-2
Fig. 9
Fig. 7
3 Field Iris Aperture Diaphragm (Fig. 7)
}To prevent progress of specimen fading, stop down the field iris aperture
diaphragm to cover only the observed area.
· The field iris diaphragm can be stopped down by pulling out the field iris
diaphragm lever @.
Fig. 8
Centering the Field Iris Diaphragm (Figs. 7 & 8)
1. Place a specimen on the stage and bring the specimen image displayed
on the monitor into focus.
2. Pull out the field iris diaphragm lever @ so that the field iris diaphragm
image ² is displayed on the monitor screen.
3. Insert the Allen screwdriver, provided with the microscope frame, alter-
nately into the two centering screws ³ to bring the field iris diaphragm
image ² at the center of the monitor screen.
4. After completing centering, push in the field iris diaphragm lever @ until
the field iris diaphragm image ² circumscribes the monitor screen.
}If the TV camera uses image pickup devices that are larger than 2/3 inch,
the field iris diaphragm image will not circumscribe the monitor screen
even when the field iris diaphragm is opened at maximum.
4 Filter Slider (Fig. 9)
}The filter slider has the same structure with both the straight light illumina-
tor and fiber light illuminator, allowing either the shutter or filter pocket to
be engaged in the light path according to the left and right sliding of the
slider.
}When observation is not performed, engage the shutter in the light path
to prevent the specimen from fading.
1. Pull out the filter slider @ in the direction of the arrow to engage the
shutter in the light path.
2. The filter pocket accepts brightness adjustment ND filters, which can be
dropped into the pocket for insertion.
· Up to five ND filters, including the 32ND6, 32ND12, 32ND25 and 32ND50
can be inserted.
If the ND filters in the fiber light illuminator are tilted, irregularities due
to interference of laser beam may be observed in the field of view. To
prevent this, keep the ND filters vertical by means of the ring spring
inside the filter pocket.
The filter slider becomes very hot when the system has been on for a
long period. Be careful not touch the filter slider parts other than the
knob.
@
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²
@
@