53
GX53
Rotate the collector lens focusing knob e to project the arc image
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
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
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
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
mirror arc image. (Picture D)
In actual observation, rotate the collector lens focusing knob e to
adjust the observation field to be uniform.
A
B
C
D
The centering of the mercury burner is recommended after
the burner is replaced or when the unevenness is noticed in
the brightness of the observed image.
99
TIP
10
11
12
TIP
e
f
h
g
