Method and device for local stabilization of a radiation spot on a remote target object
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United States of America Patent
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Aug 8, 2017
Grant Date -
Jun 23, 2016
app pub date -
Dec 18, 2015
filing date -
Dec 19, 2014
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Abstract
A method for local stabilization of a radiation spot formed by a high energy laser beam includes receiving radiation reflected by the target object, where the radiation reflected by the target object passes through the same optical path as the high energy laser beam. An image processing is performed by analyzing and comparing the image of the illuminated target object or part of the illuminated target object to at least one image of the illuminated target object or part of the illuminated target object produced at a prior point in time. A correction signal is computed, with which an optical correction device is actuated. A filter correction signal is produced by a filter device, while a controller correction signal is produced by a fine tracking controller. Finally, the correction signal is formed from the filter correction signal and the controller correction signal.
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