27
BX63
4-5 Observation Tube
1
Adjusting the Interpupillary Distance
(Fig. 34)
While looking through the eyepieces, adjust for binocular vision until the
left and right fields of view coincide completely. The index dot · indicates
the interpupillary distance.
} Note your interpupillary distance so that it can be quickly duplicated.
2
Adjusting the Diopter
(Fig. 35)
} The diopter adjustment makes it possible to reduce the specimen focusing
error even after the objective is switched. As the diopter varies between
individuals, the diopter adjustment is required for each person.
The eyepiece with diopter adjustment ring should always be
inserted into the observation tube without the diopter adjustment
ring.
1. Set the diopter adjustment rings on both sides to scale “0”.
2. Engage a high-power objective (40X or so) in the light path, look into the
right eyepiece with your right eye, and bring the sample into focus using
the FOCUS button/slider of the touch panel controller.
} Do not use an oil-immersion objective.
3. Engage a low-power objective (10X or so) in the light path, rotate only
the right diopter adjustment ring @ to bring the sample into focus. At this
time do not touch the FOCUS button/slider.
4. Looking into the left eyepiece with your left eye, rotate only the left diopter
adjustment ring
2
to bring the sample into focus.
} The above procedure adjusts the diopter with reference to the right eye,
but it is also possible to adjust with reference to the left eye. In this case,
read the above procedure by inverting “right” and “left.”
Using an eyepiece including a micrometer disk (Fig. 35)
1. Looking through the eyepiece with micrometer disk, turn the diopter
adjustment ring @ so that the micrometer in the field of view is sharply
visible.
2. Looking through the eyepiece with micrometer disk, focus on the sample
using the FOCUS buttons/slider of the touch panel controller so that both
the micrometer and sample are sharply visible.
3. Looking through the other eyepiece, turn only the diopter adjustment ring
2
to focus on the sample.
CAUTION
Fig. 35
1
2
Fig. 34
Summary of Contents for BX63
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