Carl Zeiss
Axiotech and Axiotech
vario
3-10
B 40-020 e 06/99
3.4.2
Setting of reflected-light darkfield
The reflected-light darkfield technique is ideal for
the inspection of surfaces. The illumination light
coming from the reflected-light illuminator is
directed into the darkfield channel of the HD
objective ( 3-9/
4
) via a component combined of a
prism system (3-9/
2
) and a ring mirror ( 3-9/
3
).
After passing a ring-shaped concave mirror, the
light rays are directed on the sample surface
(3-9/
5
) by glazing incidence. Only the diffracted
and scattered light bundles which are so important
for image production return to the objective, while
the directly reflecting light bundles are guided past
the objective. This is one of the reasons why even
fine structures can be resolved and appear bright
on a dark background although they partially lie
below the resolving power of the light microscope.
•
Perform steps described in sections 3.2 and 3.3.
Fig. 3-9
Reflected-light darkfield
illumination
Summary of Contents for Axiotech
Page 1: ...Axiotech and Axiotechvario Materials Microscopes Operating Manual...
Page 14: ...Carl Zeiss Axiotech and Axiotechvario XIV B 40 020 e 06 99...
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