US 7,540,424 B2
Compact bar code symbol reading system employing a complex of coplanar illumination and imaging stations for omni-directional imaging of objects within a 3D imaging volume
C. Harry Knowles, Moorestown, N.J. (US); Xiaoxun Zhu, Marlton, N.J. (US); and Timothy Good, Clementon, N.J. (US)
Assigned to Metrologic Instruments, Inc., Blackwood, N.J. (US)
Filed on Jul. 19, 2006, as Appl. No. 11/489,259.
Application 11/489259 is a continuation in part of application No. 11/408268, filed on Apr. 20, 2006, granted, now 7,464,877.
Application 11/408268 is a continuation in part of application No. 11/305895, filed on Dec. 16, 2005.
Application 11/305895 is a continuation in part of application No. 10/989220, filed on Nov. 15, 2004, granted, now 7,490,774.
Application 10/989220 is a continuation in part of application No. 10/712787, filed on Nov. 13, 2003, granted, now 7,128,266.
Application 10/712787 is a continuation in part of application No. 10/186320, filed on Jun. 27, 2002, granted, now 7,164,810.
Application 10/186320 is a continuation in part of application No. 10/186268, filed on Jun. 27, 2002, granted, now 7,077,319.
Application 10/186268 is a continuation in part of application No. 09/990585, filed on Nov. 21, 2001, granted, now 7,028,899.
Application 09/990585 is a continuation in part of application No. 09/781665, filed on Feb. 12, 2001, granted, now 6,742,707.
Application 09/781665 is a continuation in part of application No. 09/780027, filed on Feb. 09, 2001, granted, now 6,629,641.
Application 09/780027 is a continuation in part of application No. 09/721885, filed on Nov. 24, 2000, granted, now 6,631,842.
Prior Publication US 2007/0080228 A1, Apr. 12, 2007
Int. Cl. G06K 7/10 (2006.01)
U.S. Cl. 235—462.42  [235/462.01; 235/462.24; 235/462.32] 17 Claims
OG exemplary drawing
 
1. An omni-directional image capturing and processing based bar code symbol reading system comprising:
a housing of compact construction having an imaging window formed in said housing; and
a plurality of coplanar illumination and imaging subsystems, disposed in said housing, for generating a plurality of coplanar light illumination beams (PLIBs) and field of views (FOVs), that are projected through and intersect above said imaging window to generate a complex of linear-imaging planes within a 3D imaging volume defined above said imaging window, for omni-directional imagine of objects passed through said 3D imaging volume,
wherein each said coplanar illumination and imaging subsystem includes an array of coherent light sources, and said plurality of coplanar light illumination beams (PLIBs) are generated by said array of coherent light sources.