Olympus VMT-4F-W Buku Petunjuk - Halaman 6

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Fig. 3
. Specimen on the Stage Plate
OPERATION
The stage plates fit into the circular opening
in the base.
The clear plate can be used for
both
reflected
and
transmitted
illumination.
Colored
background
can
be achieved
by
placing
suitable
material
beneath
the
plate,
for contrast, etc.
The
frosted
plate
is used
with
reflected
illumination,
The
plate is frosted white on
one side, and
black
on the
other.
If the specimen
is white
or
brightly
colored, use the black
side of the plate to
increase image contrast by darkening the background.
For dark or black specimens, reverse
the plate with the white frosted side facing the objective.
Tension Adjustment of Focusing Knobs
This
focusing
mechanism
makes
its motion
freely
adjustable
for
either
heavy
or
light
movement
depending
on
the
observer's
preference.
To adjust
the tension hold the two focusing knobs with both
hands
and
slightly
rotate
them
in
the
opposite
directions, at the same time.
(Fig. 1)
Place a specimen
in the center of the stage plate and
clamp it with the stage clips, if necessary.
(Fig. 2)
Interpupillary
Distance Adjustment
Hold
the
right
and
left eyepiece
tubes
with
both
hands
and
push
or
pull
the
tubes
in
the
arrow
directions until perfect binocular vision is obtained.
(Fig. 3)
Fig. 2
. Diopter Adjustment
a)
Looking
through
the right eyepiece
with your
right eye,
focus on
the specimen
with
the focusing
knobs.
NOTE:
In case of the Model VMT-W or Model VMZ-W, ascertain that the high magnifica-
tion objectives are used for this adjustment:
b) Look
at the
image
through
the left eyepiece with your left eye, and rotate the diopter
adjustment ring @ to focus on the specimen, without using the focusing knobs.
(Fig. 4)
NOTE:
If accurate
interpupillary
distance
and
diopter adjustments are not accom-
plished,
prolonged
observation
would
put considerable strain on the observer's
eyes.