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SCANpedia - welcome to the SCANLAB GmbH encyclopedia.

Here you'll find explanations and definitions of key technical terms from the fields of optics, scanner technology, laser technology and laser processing.

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Offset Error

Offset error is a shift of markings along one or both image field axes.

What causes offset error ?

When the axes are precisely set to 0°, the laser focus should lie in the system-defined center of the image field. Manufacturing tolerances can result in discrepancies.

Offset error is the angular deviation between the theoretical and actual null position, expressed as an optical angle .


Offset errors, i.e. deviations from the null position, can be corrected by manually determining an offset value or by applying software-assisted image field correction (e.g. with correXion pro).

Optical Angle

see Angle Terms

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