Viewfield Center Adjustment; Rotation Axle - Nikon Optiphot Repair Manual

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R-4106.A
ADJUSTMENT
2.
Binocular
Body
2-3. Viewfield center adjustment
1) Moving the test pia te, bring its center into coincidence with the scale center oi the right side
Kellner eyepiece.
2) Move the Kellner eyepiece from the right to the lefteye sleeve, and change the position of s!eeve
metal
@ (
®)
to bring the eyepiece scale center into coincidence with the test plate
center. The displacement should be O.O outside, within 0.2mm inside, and O.lmm verticlaly
on the focal plane of eyepiece.
3) With the max. and min. interpupillary distance, make the displacement within the above
specified values. Jumping of the axle at the limits is caused by the slack of metal (requiring
the replacement).
4) Apply No. 350 to screw
§
(@ ),
used for attaching eyepiece sleeves
@
and
@
e@
and
@).
2-4. Rotation axle
Set the interpupillary distance to 64mm. Bring the center scale in the Kellner eyepiece into
coincidence with that of the test plate, and rotate the tube 180°. At this time, the center
displacernent should be within 0.2rnrn (both for the right and left) on the focal plane of
eyepiece.
(B-tubo)
1)
Keeping the retaining ring
8)
fastened,
move the metal containing
@)
and
@
a half of the movement of the
rotating
a.xle, as
shown in Fig. 27, for
coincidence.
2) Apply
No.
350 to stick mount
G),
len.s
charnber
Q)
and retaining ring
©·
- 45 -
Bring to
the ccntcr
with Q)
\
Position of moved imagc
aftcr 180° rotation
\
!
_.- Move the test platc
to this position.
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d · ·
ente rc posa uon
Fig. 36
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