Series
17
(4)
Adjust centering telescope to get a clear
image of phase ring and halo in field of view (see
Fig. 38).
(5)
Center by phase contrast adjusting lever
③
until halo
④
center overlaps the phase ring
⑤
center (see Fig. 37 and 38).
(6)
Adjust phase ring and halo of other
magnification phase contrast objective according
to the above steps.
★
It cannot get the best phase contrast
microscopy observation effect if the halo is not
centered correctly.
Fig.38
Fig.39
4-5
Assembling and Operation of Dark Field
Flapper
(1)
Keep phase contrast flapper face up (upward
the face with word), insert it from left to right
into condenser flapper socket as the direction of
the arrow pointed (see Fig. 39).
(2)
Each diaphragm or hole has corresponding
position, when it sounds “ka-da” in dark field
flapper rotating, it indicates that one diaphragm
or hole is inserted into the center of optical path.
(3)
In dark field observation, adjust aperture
diaphragm adjusting ring to the maximum
position.
★
Dark field ring diaphragm is on the left
side of flapper.
Fig.40
4-6
Assembling and Operation of Simple
Polarizing
(1)
Simple polarizing includes analyzer
②
and
polarizer
③
(see Fig. 40).
(2)
Unplug analyzer dust-cover
①
from the arm,
and insert analyzer
②
face up.
(3)
Put the polarizer
③
into the condenser
④
groove as the figure shows.
(4)
Rotate the polarizer
③
can change the
orthogonal status of polarization.
★
When view field of eyepiece is the darkest,
it is polarization.
