R-4106.A
AOJUSTMENT
1.
Depression Prism Unit
AOJUSTMENT
1. Depression Prism Unit
1-1.
Adjustment
of
optical
axis
(rotation
axis
of
the tube
).
First, proceed
to
the optical
axis
adjustment of only
the
depression prism
•Jnlt,
:rnd
::-:~1.
:ifter
attaching the binocular body,
make
final
adjustment
by
means
of
prisms
@])
md
·§
for
B-tube
and F-tube or lenses ®
and
@
for
ER-tube and
UW-tube,
as
follows:
1)
Attach standard straight tube and Kellner eyepiece
028006)
to
the
tube of microscope (X, Y
or
S)
and
place
the test plate (check pattem micrometer)
on
the
stage, coinciding
the
center oi
the
test'
pia
te
to
that
of
the eyepiece viewfield,
using
1 O X objective.
2)
Remove
the standard straight tube (do not
move
the
test
pia
te), and attach the depression
prism
to the microscope.
3)
Pushing
the specific .straight
cube
(provided with Kellner eyepiece) against the depression
prism
unit with the hand,
see
a displacement
of
the center of
the
test
pia
te
from
that of the eyepiece
viewfield.
If
the displacement
is
r'ound
within a
range
of 5
scale
fines.
it
will
be
possible
by
attaching the binocular tube,
and
moving
the center of the viewfield, to
adjust the rotation axis.
D~prcmon
D~is1n
body
\
Fig.
30
<ln
the
Case
of
a Larger Displacement
of
the
Cent9r >
(B-tube)
1)
Moving
lens chamber
Q)
(with @ and @ inside)
make
the displacement within a
~'.m"?e
of
5 scale lines
in
the Kcllner eyepiece.
!tis
desirable to keep
lens
chamber
G)
at
the center
of
the hole.
-40-
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