Zeiss Stemi 305, Руководство по эксплуатации

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Stereo microscope OPERATION ZEISS
Stemi 305 Setting reflected-light illumination
09/2017 435063-7144-008 29
Engl
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4.2.2 Spot illuminator
•
Push spot illuminator in the guide to the
required height (Fig. 21/
2
).
In the lower positions, an oblique light
effect is created to produce cast
shadows for enhancing surface struc-
tures.
•
Set the angle (Fig. 21/ 1 ) via the pivot of the
spot illuminator so that the object is optimally
illuminated.
•
Set size and brightness of the spot by axially
shifting the focusing unit (Fig. 21/
3
)
(illumination zoom).
For switching the illumination intensity ON
and OFF and adjusting the illumination
intensity refer to section 4.2.1, page 28.
4.2.3 Double spot illuminator
•
Move the microscope body to its uppermost
position via the focusing knob (Fig. 22/
1 ). Push
double spot illuminator (Fig. 22/ 2 ) to the
required level within the guide.
•
Bend the two goose necks (Fig. 22/
3
) to adjust
the spots so that the specimen is optimally
illuminated.
For switching the illumination intensity ON
and OFF and adjusting the illumination
intensity refer to section 4.2.1, page 28.
Here again, an oblique light effect can
be produced in the lower positions with
the goose neck set horizontally.
The spot illuminator and the double spot illuminator have a thread M24 for placing
polarization filters in front. The appropriate analyzer is screw-fastened in the M52x1.0 thread
of the microscope body (Fig. 7/
4
).
By turning the spot polarizers, overexposure reflexes on the specimen can be reduced.
Fig. 21 Setting the spot illuminator
Fig. 22 Double spot illuminator