Possible Errors; Incident Light Techniques - Leica DM LSP Bedienungsanleitung

Biaxially positive crystals:
The interference fringes move from the convex
to the concave side of the isogyres when a com-
pensator is operated.
Biaxially negative crystals:
The interference fringes move from the concave
to the convex side.

Possible errors

Polarizers damaged (discoloured) by powerful
light sources or dirty.
Objectives or condenser strained through
mechanical damage.
Beamsplitter or filter between the polarizers.
Mounting medium for transmitted light speci-
mens is birefringent. Further sources of error
p. 34.
Incident light
techniques
Fluorescence
DM LS manual.
Polarization:
Incident light brightfield and polarization are
possible with the
However, the max. specimen height is limited
to approx. 20 mm. Description and operation
Supplementary manual for DM LP/DM LM
LUP incident light illuminator
BF (45°) or Smith incident light reflector
Lamphousing 106 or 106z or 107
Transformer for 12 V 100 W halogen lamp
following components.
15