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8
The
aperture diaphragm is
adju
sted
with
th
e
lever
The
re is
a
scale
for
reproducible
setting of the
condenser diaphragm.
The slit
at
th
e s
ide
is inte
nded
fo
r
the
inse
rtion of slides with
annular
stops
for
simple
darkfieid
or
phase
contrast illumina
tion.
These
can
only
be
taken
out
of
condenser
no.
56
again
aft er
the
lever has
bee
n
presse d.
Condenser LK
The
LK
cond
e
nser
has
a
hinged
co
ndenser
top
S 1.1.
When
th
e
con
denser top isswung
out,
th
e
lower part
of the
cond
eoser can
illuminate
aU object fi
e lds
of
o
bjecti
ves
from
2.5x upwards
with field of
vie
w ind ex 20.
When
using objectives
o
f lOx and
higher the
condenser top
must
be swung in
.
This
is
done with
the handle (8.2).
Fig.
7b Condenser
no.
56
I.
Protective ring
2.
Locking
lever for
f>hd
e
with
difTu
sion
disc
and
ann ular stops
3.
Slil
ror
slide
with diffusion
di
sc and
annu
lar
stops
4.
Lever for adju stment
of
aperture
diaphragm
5.
Dovetail guide
With
co
ndenser top A 0.90 S 1.1 swung in, the
co ndense
r LK
works
with the numerical
aperture
A
0.90.
The
image
of
the
field
diaphragm
is
produced with
th
e conde nse
r
top S 1.1 in a
gla
ss
medium 1.2 mm
ove
r th
e stage surface.
The condenser
top of
the
LK cond enser
is
interchangeabl
e
via
a
threa
d with other
cond
ense
r top
s
with
a high er num
erical
ap
~ rlure
or
tops
with a
longer
working distan
ce.
Darkfi
eld
co
n
dens er tops
D
0.80 or
D
1.19
can also
be screwe
d on
ins
tead of
the
S
1.1
standard
top. Furth er information
on condenser
tops
can
be fo
und in th
e
tabl
e o
n page
10.
The
ape rture iris
diaphragm
is adjus
ted
with th
c leve
r
(8.3).
There
is
a
scale
for repr oducible
se
tting
of the
cond enser
diaphr
agm.
Fig.
8
Condenser LK
t
A
0.90 S
I.l
Co
ndenser top
2
H<lndle
to
swing
out
the
co
nd
enser
top
J
Lev
er for
adju stment of
the il perture diaphrn gm
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