Polarized Light Analysis; Polarized Light + Darkfield Analysis - Optika Italy OPTIGEM Serie Manuel D'utilisation

5. Switch on the LED ring illuminator (position "b", Fig. 17).
• If you want it is possible to put your gem directly on the dia-
phragm, after closing it to a proper diameter. (Fig. 25)

10.2 Polarized light analysis

• ST-202 is needed.
1. Repeat steps 1-4 of chapter 10.1 for the installation of ST-
202. (Fig. 26)
2. Screw the analyzer on the bottom of the microscope body.
(Fig. 27)
3. Holding your sample with the jewel clip, you can rotate both
the polarizer and analyzer to perform polarization analysis.
10.3 Polarized light + Darkfield analysis
• ST-201 + ST-202 are needed.
1. Install ST-201 as described in chapter 10.1.
2. Screw another spacer on both rods.
3. Stack ST-202 and fix it with another spacer. (Fig. 28)
4. Screw the analyzer on the bottom of the head. (Fig. 27)
5. Holding your sample with the jewel clip, you can rotate both
the polarizer and analyzer to perform polarization analysis.
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