Nikon ECLIPSE L200ND / ECLIPSE L200N, Инструкция по эксплуатации

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3 Operation of Each Part
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IC Inspection Microscope ECLIPSE L200ND / L200N Instructions
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
Stage fine movement
knob for Y-axis
Coarse movement
OFF switch
Press down the coarse
movement OFF switch
Figure-23 Fine mode
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.
Figure-24 Focusing target
Out of focus In focus
The edges
are blurred.
The edges
are sharp.