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Method and apparatus for calibrating a control apparatus for deflecting a laser beam
Method and apparatus for calibrating a control apparatus for deflecting a laser beam
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机译:用于校准使激光束偏转的控制设备的方法和设备
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摘要
In a method for calibrating the deflection control of a laser beam a light-sensitive medium (5) is exposed to a laser beam (2) at predetermined positions for generating a test pattern (20), thereafter digitized partial pictures of pattern portions (21) of the test pattern (20) are produced and the digitized partial pictures are composed to a digitized overall picture of the test pattern (20). The correction data for the control (4) for deflecting the laser beam (2) are calculated on the basis of a comparison of actual positions of the laser beam (2) on the digitized overall picture with predetermined desired coordinates.
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