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e
f
g
h
Rotate the collector lens focusing knob e to project the arc image
9 9
on U-CST. (Picture A)
If the arc image is not projected, rotate the burner centering knob f .
If it is difficult to use the collector lens focusing knob of the
TIP
mercury lamp housing because it is placed at the back of the
microscope, insert the extension handle (U-CLA) g in the
knob and use the knob.
Rotate the burner centering knob f to move the arc image to the
10
center of the right (or left) half of the field of view. (Picture B)
Fit the Allen screwdriver into the mirror focusing screw h on the rear
11
of the lamp housing and rotate the screw to bring the mirror arc image
into focus. (Picture C)
Rotate the burner-centering knob f to overlap the arc image with
12
mirror arc image. (Picture D)
In actual observation, rotate the collector lens focusing knob e to
adjust the observation field to be uniform.
A
The centering of the mercury burner is recommended after
TIP
the burner is replaced or when the unevenness is noticed in
the brightness of the observed image.
B
C
D
GX53
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