CALIBRATING A SCANNER DEVICE
    4.
    发明申请

    公开(公告)号:US20190270161A1

    公开(公告)日:2019-09-05

    申请号:US16408557

    申请日:2019-05-10

    Abstract: The present disclosure relates to calibrating scanner devices for positioning laser beams in a processing field, and includes, e.g.: arranging a retroreflector in the processing field of the scanner device, the processing field being formed in a processing chamber for irradiating powder layers; detecting laser radiation reflected back into the scanner device when the laser beam passes over the retroreflector; determining an actual position of the laser beam in the processing field using the detected laser radiation; and calibrating the scanner device by correcting a laser beam target position specified for the scanner device in the processing field using the determined actual position of the laser beam in the processing field.

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