Olympus CHA-P Manual de instrucciones - Página 15
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VI. OPTICAL DATA
Immersion objective.
Resolving power is obtained when the objective is used at
full
aperture
diaphragm.
ObJective
Magnification
P04X
P010X
W 2 0 X
P040X
* W 1 0 0 X
0.10
0.25
0 . 1 1 0
0.65
1.30
W. D.
(mm)
18.77
6 . 7 8
1 -58
0.61
0.1 1
F w l length
(mml
28.45
16.08
8.1
3
4.33
1.81
Resolving pwver
(id
3.4
1.3
0.84
0.52
0.26
(Spring
(Spring
loaded)
loaded)
T k
eyepieces
K5X and WFlOX incorporate a sliding
eye
shield.
This shield can be
pulled
our to prevent glare
and
loss
of contrast caused
by
ambient tight hitting the
we.
K5X
(Field
number 21)
WFlOX
(18)
0
W.D. (Working
distance):
The
distance benveen
the
swimen crr cover
glass
and
the
nearsst
point of
the objective.
0
N.A.
(Numerical aprture):
The numerical
aperture
represents
a
performance
number
which could
be compared
to
the relative aperture (f-number) of
a
camera lens.
M.A. values can
t~
used for dimtly
comparing the m l v i n g
powers of all
types
of objectives. The
larger
N.A, the
higher
the
resolving power.
Total magnification
Focfll
demh
IN)
Field
of view Irnrn)
Total magnification
Focal
depth
( p )
Field of viaw (mm)
0 Resolving power:
The ability of a lens to register small details. The resolving
power
of a tens
is measured
by
its ability
to separate two
points.
0
Foal
depth:
The
distance between the upper and
lower limits af
sharpness in the
image
f o n d by an
optical system.
20X
300.0
5.25
40X
172.6
4.5
0
Field
number:
A number that represents the
diarne'ter in
mm
of the image of the field diaphragm that
i s
f o r d
by the
lens in front of it.
0
Field of view d i a d a r :
The actual
size
of
the
field
of view
in mm.
50X
48.0
2.1
1KiX
27.60
1.8
lOOX
t 556
1.05
2 0 0 X
9.19
0 . 9
200X
4
.W
0.53
400X
3 . 0 3
0.45
500X
1.05
0.21
1 ,000X
0.66
0.1
8