Olympus JM Buku Petunjuk - Halaman 10
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5. Rot ate
the pr
ism
-boxes(r
i ght
and
left)
to adjust
the
interpupi
llary d
ist ance.
(
Fig .B)
(
Fi
g.B)
6.
Set the
variable m
agnif icat ion
in
dicat or
ri
ng
at
the required
magnification f
or obse
rva t ion.
(Fig.9)
Although
t
he
specimen m
ay
be
once set
on the
stage, il
lum inat ion eff ect may be
slight ly
d
ifferent
dep
ending upon
t
he
posi tion
of t
he
spec
imen.
In
such
a case, move
t
he sp
ecimen
slightly
wh
ile
keepi
ng
i
t
in
focus
by the focus
ing
'
knob
.
(
Fig .9)
7. Set the
bright/dark
field selector swich to D for the dark-fie
ld
illumination.
The iris
di
aph ragm
is used
to adjust the angle of
dark-field illumi nation.
The mo
re
the
iris
diaphragm is stopped down
,
the more the ill um inat ion is limited,
increasing
the effect
of
the dar k
-fielb
illumination.
8. For use of
t
he Epi
illuminator
,
set the
selector switch
of the power sourse unit to the
EPI posi
tion.
If it is used in combination with the brightfield or darkfield
illumination,
t
urn the switch to the EPI·DIA position.
The focus
ing
handle of the Epi
illum inator
is able to broaden or narrow down the
illuminated
area
.
g
.
Bulb Change:
When the
bulb
is
broken
replace it w
ith
a new one in the fo
llowing
menner :
(
For Bright
/
Dark
Fie
ld
Ill
umination
bulb)
a.
Remove
the eyepieces from the eyepiece tubes
and take off the whole
m
ic roscope body
fr
om
the arm.
b
.
Remove the specimen holder from the stage.
c
.
Lay down the stage, remove the socket ho
lde r
ri
ng,
and pull out the socket.
(
Fig. l O)
d. Remove the bulb by turning it
counterclock-
wise, and replace
it.
(
Fig . l O)
8