Zeiss Standard 25 ICS, Руководство по эксплуатации

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Standard 25
ICS
B 40-029 e 01/98 3-9
3.5 Setting of transmitted-light polarization contrast
As described in chapter 2, the microscope is ready for operation and switched on according to section
3.1.
Transmitted-light polarization contrast requires the
following equipment:
- polarizer, oriented in EAST-WEST direction,
(453615) (3-9/ 3 ), mounted on swing-out
carrier.
- analyzer (3-9/ 1 ), oriented in NORTH-SOUTH
direction, and lambda plate (3-9/ 2 ) are
mounted on two separate sliders (453692) and
integrated into the stand head. To enable the
function to be performed, the sliders must be
pushed in.
Settings:
First, set a suitable object in brightfield as
described in section 3.2.
Swing the polarizer (3-9/ 3 ) in the beam path.
If only the analyzer slider (3-9/ 1 ) is pushed in,
black-and-white polarization contrast is
produced; the
additional insertion of the
lambda plate (3-9/ 2 ) makes the objects appear
in colored polarization contrast.
The sliders containing the analyzer and the lambda plate must always be pushed in until stop
to make them fully effective and to avoid the field if view to be cut off.
Retrofitting of the polarization equipment can be performed by the Zeiss service agency (see
section 4.4).
Fig. 3-9 Setting of polarization contrast