RAYLASE SUPERSCAN IV-10 Manual page 14

3 PRODUCT DESCRIPTION
3.2.2 F-Theta lens
The optional F-Theta lens is specially designed for use with 2-axis deflection units. It focuses the laser
Optional
beam at maximum quality on any position in the processing area. At the same time, it partially optically
compensates for the barrel-shaped distortion that is unavoidably produced by 2-axis deflection units.
The remaining distortion (see figure) must be compensated by the deflection unit.
Distortion caused by XY
deflection
3.2.3 Protective window
For operation of the deflection unit without F-Theta lens it is strongly recommended to use a
Optional
protective window for safety reasons and in order to protect the mirrors from contamination. If the
protective window itself becomes contaminated, it must be cleaned (see page 39, Cleaning the
protective window).
Fig.3: Protective window variations 1 and 2
Fig. 4: Protective window variation 3
© 2022 RAYLASE GmbH SUPERSCAN IV
Distortion caused by F-Theta
lens
MN105-en / v1.0.12
Distortion caused by XY
deflection with F-Theta lens
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