Autofocus & Seam Tracking

By measuring the distance from the laser head to the work surface before, during and after processing, precise focus and position can be maintained even under unstable conditions.

Because the ICI system is immune to blinding by the process beam, no additional sensors are required around the processing region – the imaging beam shares the same optics as the process beam. The seam tracking measurement point’s proximity to the actual point of interaction is limited only by the size of the melt pool.

The LD-600 provides real-time feedback to indicate the lateral and vertical distance from the target.


Fillet welding with a 200 um spot. No prior knowledge of the seam path is required for tracking.


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Application Notes

If your application calls for immediate, automated quality control decisions for laser weld depth, please fill out the following form for immediate access to our Weld QC Application Notes.