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R-4106.A
MECHANISM
ANO
PRINCIPLE
2.
F·tube
2.
F·tube
• Depression
angle
of binocular body 30°
• Tube magnification: 1 X
• Spring type eyepiece
sleeve
will
cause
no
slack
of
the
eyepiece.
• Special beam splitter offers brighter
images.
•
Owing
to Siedentopf type adopted,
even
though the interpupillary distance
is
changed (within a
range
of
51
-
75
mm),
for
which
prism
cover @
is
vertically tumed
and
moved,
the
tube
length remains constant
ali
the times.
• Diopter adjustment
is
perforrned not with the adjustment collar, but with the eyepiece with a
range
of
-8
-
+5
dptr.
• Two-step optical-path change-over system sending a light mtensity of 100%
for
observation or
100%
for
photography.
For observation,
the
1 X
relay
lenses
are
brought into the optical·path,
and
for
photography,
when
the
binocular body
is
tumed 60° to the left,
relay
lenses
@ and @
and
depression
prism
@
are
swung
out, thus
ali
the optical elements
for
photo-tube being taken out
of
the
optical·path.
Oenm
split prism
Op
Relay lcnscs
Fig.
13
• lmages are produced at
OL
and
OR
by
the parallel
ray
bearns between
@,
@
and
@,
@.
(
-18-