INTRODUCTION
6
AREX™ 400
OVERVIEW
The Fiber laser marker developed and manufactured by Datalogic employs the most
advanced technologies with regards to the opto-mechanical parts, the electronic con-
trol of laser beam power, communication and the overall safety of the entire marker.
The Arex™ 400 laser marker features a control rack and a scan head. The control rack
size is standard 19" 2.5U. The scan head compact dimensions make it easy to integrate.
All product connections are on the rear or front of the control rack.
Laser Source
On Arex™ 400 laser marker it is used a sealed fiber laser source. This source is based on
the new fiber solid state technology. It guaranties high stability, lower sensitivity to opti-
cal misalignment and a longer product lifetime.
Galvanometric scan head
The scan head features two deflection mirrors that deflect the beam in X and Y direc-
tions, depending on the graphics/pattern to be reproduced.
Operation of a laser marker with galvanometric scanning
During the marking the laser generates an invisible, high-energy infrared beam.
In order to obtain a more accurate focus, the laser beam is first enlarged using an optical
expansion system and then deflected by a scanning system consisting of two mirrors
mounted on galvanometric motors.
These mirrors deflect the beam in a controlled path along the X and Y axes; processing
of the product surface occurs by coordinating the movement of the two mirrors and the
turning on/off of the laser beam.
The deflected laser beam is focused by an F-Theta scan lens on the surface of the prod-
uct.
Generally speaking, the marking is carried out within the focus plane of the F-Theta scan
lens.
