Olympus GX41 Інструкція з експлуатації - Сторінка 19

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SIMPLIFIED POLARIZED LIGHT OBSERVATION

Fig. 26

Fig. 27

Fig. 28

}Engage an analyzer and polarizer only when simplified polarized light

observation is to be performed. Make sure they are both disengaged in

ordinary observation since significant loss of light intensity occurs. (It is

also required to insert the dummy slider in the analyzer inlet for ordinary

observation.)

1. Remove the dummy slider @.

The dummy slider helps preventing penetration of dust when the ana-

lyzer is not used. Retain it carefully for use in ordinary observation.)

2. Push in the analyzer ² to bring it into the light path. (Fig. 26)

3. Fit the polarizer ³ into the nearest slot of the filter holder with the protru-

sion | pointing right above. (The direction perpendicular to the protru-

sion is the vibration direction of illumination.) (Fig. 27)

4. Place an object with high reflective surface and minimized polarization,

like a mirror, on the stage plate.

5. Slightly rotate the polarizer ³ until the field of view is at its dimmest level

so that the cross-Nicol position is obtained. (Fig. 27)

(The illumination unit is adjusted to achieve the cross-Nicol position when

the protrusion points directly above.)

6. Place the specimen to be observed on the stage plate. Turn the speci-

men to perform polarized observation.

}When a stage center plate is in use, the specimen can be turned by

rotating the center plate with the thick of your finger.

7. Rotate the polarizer ³ to change the vibration direction of illumination. To

activate the open-Nicol position, rotate the polarizer until the protrusion

points the right. (Fig. 27)

How to remove the polarizer

1. Rotate the polarizer ³ until the protrusion | touches the edge of the slot.

Then rotate the polarizer a little more and hold it,

2. When the polarized is rotated and held, the side opposite the protrusion

lifts, allowing you to remove the polarizer easily. (Fig. 28)

GX41