Zeiss Axio Vert.A1, Руководство по эксплуатации

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OPERATION
Carl Zeiss Illumination and Contrast Techniques in Reflected Light Axio Vert.A1
92 431030-7044-001 05/2012
4.12.4 Reflected Light Polarization
Reflected light polarization is another contrasting option for polished faces of ore minerals, coal, ceramic
products, certain metals and metal alloys, as those often exhibit a different reflection behavior in linearly
polarized light, depending on the orientation of the crystals or object details.
The polarizer polarizes the illumination light linearly and transmits it, via the objective, onto the specimen
surface, where it is reflected. There, the light rays experience structure-related path differences or
polarization optical rotations, which present themselves as different gray values when passing the
analyzer.
Requirements
−
The microscope must have properly been put into operation, as described in Section 3.
−
The microscope must be switched on.
−
VIS-LED or HAL 100 reflected light illumination
−
Objectives for polarization (designation: Pol)
−
DIC P&C reflector module in the reflector turret;
or
Pol P&C reflector module plus analyzer slider A 12x35 mm, rotatable 90 degrees, with compensator
Lambda;
or
analyzer slider A 12x35 mm, rotatable 90 degrees, with compensator Lambda plus polarizer slider A
6x30 mm
Setting Polarization with the DIC P&C Reflector Module
• Set up the microscope, as described in Section 4.12.1, for bright field in reflected light. If the DIC
slider is still in place, remove it, as appropriate.
• Rotate in the DIC P&C reflector module on the reflector turret.
The analyzer and polarizer are fixed in crossed position in the DIC P&C reflector module.