Olympus CHA Buku Petunjuk - Halaman 10
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C. Interpupillary Distance and Diopter Adjustments (Binocular tube)
(
(
1) Hold the knurled dovetail slides Q) of the right and
left eyepiece tubes with both hands and push the
tubes together, or pull them apart laterally, which-
ever is required, while looking through the eyepieces
with both eyes, until perfect binocular vision is
obtained (Fig. 21.
21 Rotate the tube length adjustment ring
®
on the
right eyepiece tube to match your interpupillary
distance setting which you obtained from the scale
@.
3) Look at the image through the right eyepiece with
your right eye and focus on the specimen with the
coarse and fine adjustment knobs.
Fig.2
4) Next, looking at the image through the left eyepiece with your left eye rotate the tube
length adjustment ring
@
to focus on the specimen without using the coarse and fine
adjustment knobs.
D. Tension Adjustment of Coarse Adjustment Knobs
,
A tension adjustment ring
CD
is provided next to the
right hand coarse adjustment knob. With this device the
tension of the coarse adjustment is freely adjustable for
either heavy or light movement depending on operator
preference. However, do not loosen the tension adjust-
ment ring too much, because this may cause
thE~
stage to
drop or the fine adjustment knobs to slip.
The arrow mark indicates increase of the tension.
*
Be careful not to rotate the right and left coarse adjust-
ment knobs in the opposite directions simultaneously.
E.
Automatic Pre·focusing Lever
This lever
CD
is provided to prevent possible contact
between specimen and objective as well as to simplify
coarse focusing. The lever is locked after coarse focus
has been accomplished. This prevents further upward
travel of the stage by means of the coarse adjustment
knobs, and automatically provides a limiting stop
if the stage is lowered and then raised again. The
automatic pre-focusing lever does not restrict fine focus-
ing. (Fig. 4)
8
Fig. 3
Fig.4