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Optional accessories
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44
Focusing rod
Fig. 19
Focusing rod
The focusing rod can be installed in hole (
8
, Fig. 6). The focusing rod can be
used for determining the individual diopter setting on the eyepieces to
compensate for ametropia of the observer or possible instrument myopia.
The exact adjustment of the eyepieces is a prerequisite for good examination
results and is necessary when using a video or photographic camera on a slit
lamp or when using the slit lamp as laser slit lamp.
•
To use the focusing rod, install it in the hole at the axis with the black
observation plane towards the stereomicroscope. Push the rod as far as it
will go.
•
Adjust the slit width to approx. 1 mm and set the illumination angle to 0°
(i.e. slit projector in middle position).
•
Set the magnification to 12x.
•
While carefully monitoring the slit image, a sharply focused image must
be set for each eye separately by turning the diopter scale on the
eyepiece (starting with high + values).
The eyepieces can be adjusted even more exactly using the
optional micrometer eyepiece with length and angle scales.
Содержание SL 120
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