5 Polarization and Conoscopy |
5.4 Performing Polarization Examinations with Transmitted Light
Primotech | Document 430055-9044-008 V.1.0; 03 / 2014
37
5.4 Performing Polarization Examinations with
Transmitted Light
Prerequisites
¢
You are using Primotech D/A POL or Primotech D/POL Conoscopy
¢
The sample is illuminated by transmitted light only
¢
No polarizers or analyzers are in the beam path
¢
The objectives are centered
(see Centering the Objectives [
33])
Procedure
1
Turn the polarizer ring under the sample to the 0° position.
1
3
5
2
If desired, observe the sample in the polarized light, for example to determine
the fracture direction of a material.
3
Insert the fixed analyzer into the horizontal slot of the intermediate tube.
Alternatively, insert the rotatable analyzer, set to the 0° position, into the slot.
4
Rotate the stage and observe how the sample changes color.
5
To investigate the sample further, insert a compensator in the 45° slot on the
microscope stand.
5.5 Performing Polarization Examinations with
Reflected Light
Prerequisites
¢
The sample is illuminated by reflected light only
¢
No polarizers or analyzers are in the beam path
Procedure
1
Insert the fixed polarizer into the vertical slot of the intermediate tube.
2
1
2
Insert the rotatable analyzer, set to the 0° position, into the horizontal slot of
the intermediate tube.
3
If desired, rotate the sample and observe how the sample changes.
