Machine vision inspection system and method
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United States of America Patent
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N/A
Issued Date -
Sep 9, 2004
app pub date -
Mar 5, 2004
filing date -
Mar 7, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A machine vision system has an illumination head (1) with seven rings of LEDs 2-8, each having a different elevational angle. Each ring is configured with a particular current level, thereby setting its intensity. Rings 3 and 4 are green and blue, the other rings being red. A controller controls illumination by varying one or a combination of elevation, azimuth quadrant (or 45.degree. octant), intensity, and colour. For example an image may be captured with fully surrounding, North quadrant, South quadrant, East quadrant, and West quadrant illuminations. Alternatively, there may be both North-South illumination for one image and East-West for another.
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