Scanlab has broadened its offering with ‘SCANalign,’ a vision system tailored specifically to the demands of laser processing steps used in solar cell fabrication.
With the SCANalign vision system, users can realise high-precision laser processing in low-precision environments.
The system automatically recognizes and locates fiducial markers or other features on work pieces, so that the laser beam can be very precisely positioned with respect to these fiducials. The result of the laser processing is thus more precise than any part or mechanical fixture in the machine itself. In addition, the vision system allows calibrating the working field and checking the result of the laser process. The SCANalign vision system takes pictures through the laser scan head and is easy to use and set up. By observing the work piece through the scan head, the system effectively corresponds to a camera with over 100 million pixels. This yields high precision for measuring features across the complete working field. Precision is higher and the working distance larger than in typical vision systems.
Laser processing steps used in solar cell fabrication steps.
The SCANalign system consists of a software package with an intuitive graphical user interface, a camera, a camera adapter, an illumination system and a high-precision calibration plate. A stand-alone and an OEM bundle will be made available. The vision system interfaces with Scanlab's laserDESK software. Training, installation and support, including in the domain of illumination, are provided.
January 2013 onwards.