33
Slightly unscrew the clamp screw (28.7) if
necessary with the Allen key (1.5 or 1.4). Place
the transmitted light polarizer on the microscope
base with its straight outside edge parallel to
the right outside edge of the microscope base.
When you notice the orientation slot click into
position (left) retighten the clamp screw.
Reflected light polarizers
*
One of the following polarizers is used,
depending on the area of application. They are
inserted as far as possible into the stand from
the right (29 and 65.4) see also p. 99.
Attention:
Hg and Xe lamps can destroy the polarizer, so
use protective filter (29.6)
!
Polarizer R/P
For qualitative and quantitative reflected light
polarization (29.1). The interchangeable Pol filter
can be taken out and inserted in two positions:
÷
parallel to the longitudinal axis of the mount:
for polarized light microscopic examinations
with the analyser 360 (30.1). The analyser must
be set at 90.0
°
at the crossed position (see page
77).
◊
vertical to the longitudinal axis of the mount:
this position is always used with analyser IC/P
(30.5) 45
°
, analyser 360 only. For ICR up to fov 20
only!
Polarizer with whole-wave compensator
For qualitative reflected light polarization (29.2).
The rotatable whole-wave compensator permits
extremely sensitive colour contrast, e.g. for
microscopy of anisotropic ores and metals such
as aluminium.
Polarizer ICR
With fixed vibration direction (N – S) (29.5), due
to built-in MgF
2
plate up to fov 25, but not for
polarized light. For reflected light interference
contrast ICR the ICR reflector with polarizer,
analyser and MgF
2
plate can be used instead.
!
Fig. 29a
Reflected light polarizers*
1
Polarizer R/P (switchable vibration direction),
2
Polarizer
with whole-wave compensator,
3
Polarizer rotation,
4
Whole-
wave compensator rotation,
5
ICR polarizer
Fig. 29b
Protection filter* for Hg and Xe lamps in polarized
light*
1
2
3
4
5
a
b
