Olympus bx40 - Page 160

U-BI30
B.
DESCRIPTION
OF
MECHANISM
5,
OPTICS
ADJUSTMENT
MECHANISM
5-1 Optical axis
BIC unit
@
Revolving
axis
and
left/right
? :
Optical
axis
of
the
wh
i
optical
axis
of
the
sleeve
©
Eg
email
with the BI unit installed
Adjust
the
optical
axis
at
the
above
two
points.
The
internal
prism
position
is
adjustment-free
in
principle.
Adjustment ©
Adjust the revolving axis in the right sleeve. ("Revolving axis"
means the mechanical rotation center upon interpupillary distance
adjustment and the phenomenon which occurs when the optical axis is
displaced. The optical axis mentioned here is the center of the
sleeve. Align the optical axis with the mechanical rotation center
by changing the sleeve position so that the image in the field of
view does not move upon observation.)
The left sleeve is used to adjust only the left/right optical axis.
(Align the right sleeve center with a point of a specimen beforehand,
then match the left sleeve center with the point of a specimen.)
Adjustment @)
Almost
the
same
as
the
adjustment
method
performed
for
installation
of
the
BI
unit
of
the
conventional
BH2-BI.
Mount
the
standard
objective
on
the
adjusted
frame.
Mount
the
BI
unit
with
the
standard
eyepiece
attached
to
the
right
sleeve
on
the
frame.
Change
the
BI
unit
mounting
position
so
that
the
cross
center
of
a
specimen
co-
incides
with
the
cross
hairs
center
of
the
standard
eyepiece.)
5-2 Optical tube length
Left
sleeve
Right
sleeve
©
EY
©
This
adj.
ring
is
screwed
inside
Adjust
the
helicoid
and
turned
to
adjust
the
optical
tube
scale to zero. length.
©