25
9. Simple Polarization Set
9.1 Components Name
9.2 Installation and Use
9.1.1 Polarization Set
（
Fig.38
）
Polarization
observation
has
two
necessary components: polarizer
①
and
analyzer
②
.The analyzer can be rotated
at 0-90°. In orthogonal polarization
observation, it is necessary to turn the
analyzer to make the vibration directions
of the polarizer and the analyzer
perpendicular to each other and the filed
of view is darkest.
9.2.1Installing
Polarization
Set
（
Fig.39-41
）
1. Place the polarizer directly over the
collector, as shown in figure 39;
2. Open the stopple on the nosepiece and
insert the analyzer, as shown in figure
41.
9.2.2 Process of Observation
◎
When the polarizer and the analyzer
enter the optical path, the specimens
can be detected by turning the analyzer
to the darkest filed of view(completely
extinct state).
2. Place the specimen on the stage and
focus it;
3. Adjust the filed stop until the filed stop is
circumscribed with filed;
4. Contrast can be increased by reducing
the
aperture iris diaphragm.
◎
Remove the entire polarization set after
use.
Fig.38
Fig.40
Fig.41
Fig.39
③
①
②
