Patent ID: 6974084

Claim:
A method of scanning an item being passed through a scan volume, comprising the steps of arranging a housing with a first housing section containing a first aperture oriented in a first plane and a second housing section containing a second aperture oriented in a second plane generally orthogonal to said first plane, said first and second apertures facing the scan volume from generally orthogonal directions; generating laser light; scanning said laser light to generate a first set of scanning beams, a second set of scanning beams, and a third set of scanning beams; directing said first set of scanning beams through said first aperture to project a first scan pattern of a plurality of pairs of intersecting scan lines onto a side of the item facing said first aperture; directing said second set of scanning beams through said second aperture to project a second scan pattern of a plurality of pairs of intersecting scan lines onto a side of the item facing said second aperture; directing said third set of scanning beams through said second aperture to project a third scan pattern of a plurality of pairs of intersecting scan lines onto a side of the item facing opposite said first aperture.