Olympus Pom Petunjuk Manual - Halaman 11
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Tube Length Adjustment Ring:
registration
pin slots
By means of a helicoid screw inside the adjustment ring, the tube
length will be adjusted from 1600101 (position OJ to 167mm (position 71.
For an orthoscopic observation, use
position
O.
For
an
orthoscopic
observation, use position O.
For a conoscopic observation, the position
of the interferential image will be different according to the objective
used and, therefore, the tube length must be adjusted so as to obtain
the clearest conoscopic image.
The most preferrable tube lengths according to each objeetive are
as follows:
OBJECTIVE
1------------- --
TUBE LENGTH
(Positionl
Registration Pin:
P020X
4.5-5.0
P040X
4-4.5
P0100X
I
I
0.7.1.~
Two slots for the registration pin are cut on the eyepiece tube
(of 300101 inner diameterl.
Facing from the observer, if the registration
pin is inserted in the righthand side siot, the cross line in the eyepiece-
will align with the vibrating di rection of the analyzer position 0 a nd the
poralizer position O.
If it is inserted into the other slot the cross line
will align diagonally.