Functional Description; Laser Beam Deflection Unit - RAYLASE MINISCAN II Manual

Functional description

4 FUNCTIONAL DESCRIPTION
4.1

Laser beam deflection unit

The deflection unit can be used to deflect a laser beam in X and Y directions. This produces a
two-dimensional area within which a laser can be directed at any position. This area is known
as the "marking field" and is shown in Fig. 2. Deflection is performed by two mirrors, each of
which is moved by a galvanometer scanner. The deflection unit has a beam input, into which
the laser beam is fed, and a beam output, through which the laser beam is emitted from the
unit after deflection. Only suitable lasers can be fed into the beam input. Refer to the corre-
sponding data sheet in the appendix for details. Depending on the version, the beam output is
either open or fitted with an F-Theta lens or protection window ( page 16, F-Theta lens).
Fig. 2
Functional
principle
1 Beam input
2 Galvanometer scanner with mirror
MN071 / v1.0.0
3 Beam output
4 Marking field
2-Axis Subsystems for Laser Beam Deflection
Chapter 4
15