5. Using the focus screw of the collector lens ②,
put the image of the arc projected onto the paper.
The light spot must be brighter and sharper as
possible. (Fig. 63)
6. Using the centering screws ③ on the side of the
lamp housing, center the image of the arc. (Fig.
63-64)
7. Using the focusing screw of the collector lens
② enlarge the image until a homogeneous
illumination is achieved. (Fig. 65). At this point,
insert an objective into the optical path and, looking
into the eyepieces, optimize the illumination
always using the screws ② and ③.
8. After replacing the exhausted bulb, reset the
time counter on the power supply by pressing the
"Reset" button ①. (Fig. 66)
①
Page 39
Fig. 63
Fig. 64
Fig. 65
①
Fig. 66