Nikon L-ke Руководство по эксплуатации - Страница 11
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Печатать страницуm e d i a t e l y after f i n i s h i n g t h e w o r k , clean off t h e r e m a i n i n g oil f r o m t h e lens
u s i n g a soft c o t t o n cloth w e t t e d w i t h xylor. Never use alcohol or i m m e r s e
t h e t o p of t h e objective in xylor.
Be c a r e f u l
not to
use
i m m e r s i o n
oil t h a t has
been t h i c k e n e d by age.
The r e f r a c t i v e index of t h e i m m e r s i o n oil s h o u l d be 1.515.
7.
L o n g W o r k i n g R a n g e o f t h e
S t a g e
The m i c r o s c o p e
L-Ke is
designed t o p e r m i t large-
range l o w e r i n g of its stage
( 7 1 m m ) for
c o n v e n i e n c e
in o b s e r v i n g a t h i c k speci-
men such as for metallurgy
or c u l t u r e . Unlock t h e lock
screw beneath t h e stage
( F i g . 17), and t h e
stage
can
be
lowered
3 3 m m
^ ^ ^ ^ ^ ^ ^
and by m a n i p u l a t i o n
of
^^W^^^^^gnm^^j^^^^
'[J
the coarse f o c u s i n g k n o b
f a r t h e r 3 8 m m .
The stage lowered to s u c h a g r e a t e x t e n t m a y
be u s e f u l in m a c r o p h o t o -
g r a p h y or w h e n a special stage is u s e d .
8 .
E x c h a n g i n g t h e
S t a g e
Lower t h e stage by m e a n s of t h e coarse
f o c u s i n g
knob and t h e n unlock
t h e stage lock screw.
The stage, t h e n , can be r e m o v e d .
MOVING THE SPECIMEN ON THE STAGE
C l i p
1 .
R e c t a n g u l a r M e c h a n i c a l S t a g e '*R"
This
stage
enables
fine
crosswise
t r a v e l l i n g of t h e
slide
in t h e
range
of 5 0 X 7 5 m m , a l l o w i n g r e a d i n g
of t h e m o v e m e n t down to 0.1
m m by the use of t h e vernier
p r o v i d e d .
For s e c u r i n g
t h e slide on the
stage
in
p o s i t i o n ,
open
the
clip.
Each t r a v e l l i n g
is
p e r f o r m e d
by r o t a t i o n of t w o coaxial knobs
i D c a t e d one above t h e o t h e r on
t h e
v e r t i c a l
rod
p r o t r u d e d
below
on t h e
left
side
f r o m
t h e f r o n t , t h e u p p e r knob being
- - 1 9 —
for l o n g i t u d i n a l and t h e lower
one
for
lateral t r a v e l of
t h e
slide on t h e stage.
In
f l u o r e s c e n c e
m i c r o s c o p y
or in u s i n g oil i m m e r s i o n ob-
j e c t i v e s ,
w h e r e t h e clearance
b e t w e e n
t h e
c o n d e n s e r
a n d
t h e
slide
also s h o u l d be oil-
i m m e r s e d ,
s t i f f e n e d
oil
may
cause u n s m o o t h t r a v e l of t h e
slide.
In t h i s case, r e m o v i n g
19
of t h e c i r c u l a r
o p e n i n g
plate
at t h e center of t h e stage or
f a s t e n i n g of t h e c l a m p
screw
will
be h e l p f u l
to
a
positive
t r a v e l of t h e slide ( F i g . 18).
By u n l o c k i n g the lock knob on
t h e edge of t h e stage t h e stage
can be r o t a t e d h o r i z o n t a l l y for
c o n v e n i e n c e in t h e o b s e r v a t i o n
from t h e opposite
side of
t h e
m i c r o s c o p e ( F i g . 19), w h e r e t h e
eyepiece t u b e is to be r o t a t e d
180°. This r o t a t i o n of t h e stage
m a y o f t e n be of use in photo-
m i c r o g r a p h y , w h e n t h e p i c t u r e
f o r m a t is c h a n g e d f r o m verti-
cal to h o r i z o n t a l or vice versa.
It is r e c o m m e n d e d to use t h e
slide
a d a p t e r
on
t h e
stage
( F i g . 2 0 ) for a s u f f i c i e n t longi-
t u d i n a l t r a v e l
of t h e slide in
such reversed p o s i t i o n .
2 .
C i r c u l a r F l o a t i n g
S t a g e
The
c i r c u l a r
f l o a t i n g
stage
( F i g .
21)
glides
and
r o t a t e s
s m o o t h l y and precisely in any
desired
d i r e c t i o n
s i m p l y
by
p u s h i n g t h e r i m of t h e stage
by t h e f i n g e r s , wichin a circle
of 1 8 m m in d i a m e t e r .
To f a s t e n t h e f l o a t i n g
stage
in p o s i t i o n , p r e s s i n g t h e stage