Chapter 5 Laser Unit
5.4 LU4A Four-laser Module A
1-164
Figure 5.4-21
3. Loosen two hexagonal bolts at the slots of the green
HeNe laser adapters. And then, insert the green
HeNe laser into the sleeve of the laser adapters.
4. The laser emission port must contact the black ring
to prevent scattered light of laser from leaking. Press
the laser emission port against the black ring. The
ring becomes flattened. Confirm that the label on the
HeNe laser faces upward when installed.
Figure 5.4-22
5. Put a target such as a piece of paper in the optical
path away from the polarizer-equipped tool.
6. Manually open the L4 laser shutter to emit the laser
light. At this time, insert an Allen wrench into the
shutter to keep the shutter open.
Figure 5.4-23
7. Rotate the green HeNe laser body to adjust the laser
light on the target. The rotation of the laser body
must be stopped at the position where the laser light
is the darkest.
8. Tighten two hexagonal bolts at the slots of the green
HeNe laser adapters to fix the green HeNe laser.
Label Slot x 2
Press against the black ring
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