Olympus BX45 Manual de instrucciones - Página 25

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4-3 Transmitted Light Simple Polarization Observation

}Polarized light observation requires the U-ANT analyzer (or any module incorporating an analyzer) and the BX45-PO

polarizer.

Fig. 36

Fig. 37

Mounting the BX-45PO Polarizer

1. Pull out the filter slider @.

2. Insert the BX45-PO polarizer ² into the hole all the way until stopped.

}The polarizer levers should extend in the lateral direction. This position is

the Cross-Nikol (dark) position.

Mounting the U-ANT Analyzer

1. Remove the rubber cap on the slider inlet on the upper part of revolving

nosepiece.

2. Hold the U-ANT analyzer ² so that the side with indications faces up,

then align index markings and drop the analyzer into the dummy slider

@ which is provided with the BX45-PO. (The analyzer will be clamped by

a magnet.)

3. Place the dummy slider with the U-ANT analyzer @, push the dummy

slider fully in to engage the analyzer in the light path.

}The analyzer can be disengaged from the light path by pulling the dummy

slider by one step.

Observation Procedure

1. Turn the turret (@ in Fig. 33) to select BF of the transmitted brightfield

observation light path.

2. Engage the objective in the light path.

# When a Ph objective is used, the contrast may be weakened.

3. Turn the polarizer lever slightly so that the field becomes darkest (Cross

Nikol position).

4. Place a specimen and focus on it.

5. Adjust the field iris diaphragm so that it circumscribes the field of view.

6. The contrast may be increased by adjusting the aperture iris diaphragm.

BX45

(Fig. 36)

(Fig. 37)