Measurement system having a camera with a lens and a separate sensor
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United States of America Patent
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Dec 30, 2003
Grant Date -
N/A
app pub date -
Dec 23, 1999
filing date -
Dec 23, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A measurement system (1) has a camera with a lens (12) and a separate sensor (10) mounted so that their planes (13,11) intersect at an object plane (3) according to the Scheimpflug principle. A reference camera(4) is normal and provides a 2D normal image which is used by an image processor (25) to determine a calibration image. This allows the image processor to determine height of the object (2). A single image capture provides an image of the full object, such as a ball grid array (BGA).
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