Leica FSC manuel dutilisation Polarization Devices

9. Accessories

9.7 Polarization Devices

Polarizing devices are available for the compari-	(Fig. 58) must be inserted. This receptacle al-
son macroscope for both the oblique incident il-	lows 90° horizontal rotation of the polarizer with
lumination and the transmitted light equipment.	lambda plate for setting the desired polarization
	contrast.
For both polarizing devices, the analyzers in the	For activation and deactivation of the lambda
slider (Fig. 56) are identical. They are inserted	plate, the polarizer must be rotated 180°.
into the filter receptacles of the macroscope
holders (55.1). Their use is not necessary if the
device for coaxial illumination is installed with a
fixed analyzer between the macro-objectives
and the comparison device.
When using the rotating polarizers for the ob-	Fig. 57 Rotating stage ø 118 mm
lique incident illumination, the focusing lenses	1 Filter slot for polarizer
must be installed on the ends of the light guides
first. Then screw the rotating polarizers onto the
threads provided in front of the focusing lenses.
By rotating the polarizers, you can reduce dis-
ruption from points of light generated by shiny
object structures.	1
To use the polarizers with lambda plates for set-
ting up the transmitted light illumination, first
assemble the rotating stages ø 118 mm on the
cross-stages (→ page 31). In the bottom of the
rotating stages, there is a filter holder (57.1),
into which the polarizer with the lambda plate
Fig. 56 Analyzers	Fig. 58 Polarization filter for transmitted light

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