18
The laser beam dump underneath of the scanner is used during the internal laser power
measurement process.
Fig.4.5 Beam Delivery System
Deflection mirrors scan the laser beam according to a specified pattern similarly to a hand
writing process. 200 mm objective focuses the beam on the tablet surface. The laser fires 50000
shots per second leaving one permanent marking dot on the surface per shot. The dot diameter
varies from about 100 to 200um and mostly depends on the laser pulse energy, focusing
objective, and surface composition. The distance between the dots is completely programmable
and depends on the speed of the moving mirrors and laser repetition rate. The system allows
imprinting any information on the wire surface including logos, pictures, barcodes, and
alphanumeric messages.
Laser is equipped with locking key switch. During the operation the key should be in ON
position and laser shutter should be open. The laser is externally controlled by the scanner board.
All laser parameters are downloaded from the computer.
Warning !!!
Do not press any buttons and/or change any settings on the
laser power supply unless instructed by authorized personnel.
When laser is powered, warmed up and ready to operate it produces a low power pilot
beam when switched to the alignment mode (offset). The beam footprint should be visible on the
loaded wire or on a piece of white paper under the beam. For detailed laser description refer to
Appendix A.
Scanner
To the
Scanalone
Board
Objective
Shutter
To the
Safety
Relays
Beam
Path
Laser
Exit Beam
Opening
Telescope
defocusing
lens
Telescope
focusing
lens
Содержание M100LFG-TT/150
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Страница 73: ...73 14 List of Appendices A Laser Manual B Cooler Manual C Scanner Manual D ScanaloneCard Manual ...