Inspection system and method for obtaining an adjusted light intensity image
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United States of America Patent
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Jul 11, 2017
Grant Date -
Jun 9, 2016
app pub date -
Dec 3, 2015
filing date -
Dec 4, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
An inspection system for obtaining an adjusted light intensity image includes a light source, an image capturing device and a controller. A field of view of the image capturing device is adjusted within an illumination area of the light source. A plurality of light emitting units of the light source are turned on in sequence. The image capturing device captures a calibration image when each of the light emitting units is turned on to obtain a plurality of the calibration images. The controller adjusts the light emitting intensities of the light emitting units respectively according to the light intensity distributions of the calibration images to obtain a specific intensity distribution of an inspection image in the field of view and compensate a vignette effect of the image capturing device.
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