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3.8.2 The fine mode
Press down the coarse movement OFF switch at the left side of the stage coarse movement
lever. The stage is now in the fine mode. Turn the stage fine movement knobs to move the
stage minutely in the X or Y direction.
Stage fine movement
knob for X-axis
3.9
Focusing target
When you are to observe a sample with a polished surface under the episcopic illumination,
the use of the focusing target will facilitate the focusing.
3.9.1 How to use the focusing target
Pull out the focusing target lever to put the focusing target in the optical path.
Pull out the focusing target lever and look into the eyepieces. You will find dark shadows at
4 corners of the viewfield. When the sample is out of focus, the edges of the shadows are
also blurred (see the figure below). Turn the focus knobs and focus on the edges of the
shadows until they look focused. After this adjustment, push in the focusing target lever to
remove the focusing target from the optical path and find out that the sample is just as well
in focus.
Pull out to put the focusing target
in the optical path.
3 Operation of Each Part
Press down the coarse
movement OFF switch
Figure-23 Fine mode
Figure-24 Focusing target
21
IC Inspection Microscope ECLIPSE L200ND / L200N Instructions
Coarse movement
OFF switch
Stage fine movement
knob for Y-axis
Out of focus
In focus
The edges
The edges
are blurred.
are sharp.
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