Method and system for use in inspecting and/or removing unsuitable objects from a stream of products and a sorting apparatus implementing the same
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United States of America Patent
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Oct 9, 2012
Grant Date -
Feb 25, 2010
app pub date -
Mar 27, 2008
filing date -
Mar 27, 2007
priority date (Note) -
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Abstract
Disclosed is a method and system for inspecting and sorting unsuitable or irregular objects in a stream of products, the system includes means for scanning the stream of products along a scan line. The scan line is formed by means of at least one light source directing light along the scan line, and means for detecting light beams reemitted by the product stream upon scanning. The scanning means includes a focusing means for concentrating the light in at least one dimension. The detecting means includes a focusing means for forming an image in an image plane. The detecting means is oriented towards the scan line such that points on the scan line form a projected scan line in the image plane and the image substantially located in the image plane is substantially focused in at least one dimension by the focusing means. The detecting means also includes a spatial filtering means that filters the image in substantially the direction perpendicular to the direction of the projected scan line.
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