System and method for measuring reflected optical distortion in contoured glass sheets
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United States of America Patent
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Dec 19, 2017
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app pub date -
Sep 16, 2016
filing date -
Jun 26, 2015
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Abstract
A method for measuring optical distortion in a contoured glass sheet includes the steps of conveying the glass sheet in a first direction, employing at least one display to project a preselected multi-phase non-repeating contrasting pattern, and employing at least one camera, and uniquely pairing each one of the cameras one of the displays. The method may also include controlling each of the cameras to acquire the desired images, analyzing and combining the data acquired by the cameras to construct a definition of the surface of the glass sheet, and performing one or more optical processing operations on the surface data to analyze the optical characteristics of the glass sheet.
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