www.cnoec.com.cn [email protected]
A) Application:
This series microscope is a high precision instrument designed
and produced by our company. It is specially designed for clinical
examination and teaching demonstration in medical and health
establishments, laboratories, agricultural science and technology
field, research institutes. It is used for routine work and research in
biology, bacteriology cytology and pharmacology. Providing with
some optional accessories, the microscope will be enlarged its
functions in demonstrating, collecting, saving and analyzing of the
miro-image.
B) Principle:
The principle of the microscope is showed in Fig 1. The lamp(a)
illuminates. The light from lamp is introduced to the condenser( b)
and then converged on the specimen (c) by the condenser. The
image of the specimen(c) is first magnified by the objective(d) and
then further magnified by the eyepiece(f). The prism(e) is used to
change the direction of the light.
Total magnification=
（
magnification of objective
）
multiply
（
magnification of eyepiece
）
C) Structure and main specifications:
The structure of microscope is showed in Fig 2.
1. Eyepiece(1):
Usually,the microscope is only equipped with wide-field and
plano-scope eyepiece WF10X. If you need, we will also provide
you wide-field eyepieces as WF5X, WF6X, WF12.5X, WF15X,
WF16X, WF20X, or Huygenian eyepieces as 5X, 6X, 10X, 12.5X,
15X, 16X. The specifications of WF10X are showed as following:
P.1
a
b
e
c
d
f
Fig 1.The Principle Draft
In this microscope, the standard outfit of the objective system is DIN achromatic objectives which are
4X, 10X, 40X (spring loaded), 100X (spring loaded, oil immersion). The objective 100X is a immersion lens.
When the 100X objective is used, between its top and the cover glass, should drop some immersion oil and
be sure to make the air bubble out. If there is some air bubble in oil, you may rotate the nosepiece once
more, or add more oil again. After finish observing, the top of the objective(100X and 40X) and the cover
glass should be cleaned at once. Otherwise the remained dry oil will impair the imaging quality in the next
observing. According to your requirement, we can also provide you infinity system plane-scope achromatic
objectives, infinity system achromatic objectives, plane-scope achromatic objectives, and semi-plan
achromatic objectives.
The specifications of the DIN achromatic objective system are showed as following:
with point
Magnification
WF10X
Wide Field Plane-
scope Eyepiece
10
18mm
Diameter of
Viewing Field
24.95mm
Working
Distance
Remark
DIN Achromatic
Objective
R
emark
Numerical
Aperture
Focal
Distance
37.5mm
31.04mm
4X
10X
40X
100X
Working
Distance
100
40
10
4
0.10mm
0.25mm
0.65mm
1.25mm
17.13mm
4.65mm
2.906mm
7.316mm
0.632mm
0.198mm
Cover Glass
Thickness
0.17mm
0.17mm
0.17mm
0.17mm
Spring
Spring, Oil
2. Objective(4):
Magnification
