Nikon LABOPHOT-POL Instructions Manual - Page 10

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1) Turn
the
brightness control dial
(including
power switch)
to light
the lamp.
2) Bring the
analyzer and
the Bertrand lens out
of
the
optical
path.
(Refer
to
P.
13
& 14)
3) Place the specim en on the stage and swing the
10X objective into position. Focus on
specimen.
4) Adjust
the
interpupillary distance
and
diopter.
(Refer to
P.
8)
5)
Place the filter on
the
field lens.
6)
Carry out the centering procedure
for
the
objective.
(Refer
to P. 8)
7) Carry
out
the
centering
procedure for the
con­
denser. (Refer to P. 9)
8) Bring the analyzer into the optical path.
9) Swing in the objective to be used and refocus on
specimen.
1 '0) Brightness
voltage.
IS
adjusted by changing the lamp
Table 1
Ortho
sco
pic
microscopy
Conoscopic
micro
scopy
Top
lens
o~
lO
X
or
higher
IN
IN
co
ndenser
4
X
or
lower
OUT
Bertrand
lens
OUT
IN
Aperture
diaphragm
lO
X
or
higher
70% --
80%
of the
numerical aperture
of the objective
Circumscribed
the circumfer
·
enee
of
the
conoscopic
field of view
(or fully
opened)
4
x
or
lower
Fully opened
Field
diaphragm
lO
X
or
higher
Circumscribed the
ci
rcumference
of
the
eyepie ce field
of
view
Circumscribed
the
circum
fer·
enee
of
the
orthoscopi
c
field
of
vi ew
4
x
or
lo
wer
Fully opened