公开(公告)号：EP1112483B1

公开(公告)日：2006-05-24

申请号：EP99951377.3

申请日：1999-09-10

Applicant: Robotic Vision Systems Inc.

Inventor： STERN, Howard

IPC: G06K7/10

CPC classification number: G06K7/10742 ,  G06K7/10732

Abstract: An illumination apparatus (80) is provided for a hand-held imager (30) preferably to provide diffuse illumination for encoded symbology carried directly upon an article, component, etc., or upon a substrate carried by an article. The illumination apparatus (80) is disposed proximate the front of the hand-held imager (30) and is configured to permit light reflected from the target to pass through the illumination apparatus (80) and onto a CCD image receiver (60). An array of unlensed LEDs (114) is disposed to cast approximately or substantially lambertian illumination in a direction away from the target to be imaged and into the hand-held housing (32) to impinge upon surfaces of an illuminator (82) to receive the illumination and, in turn, project efficient and diffuse dark field illumination through the array of unlensed LEDs (114) and towards and onto a location where a target to be imaged would be disposed. The illumination apparatus (80) further includes a bright field illumination source (166) including a plurality of forward facing, towards the target, lensed LEDs (162).

公开(公告)号：EP1112522B1

公开(公告)日：2003-10-29

申请号：EP99948229.2

申请日：1999-09-13

Applicant: Robotic Vision Systems Inc.

Inventor： FANTONE, Stephen, D. ,  FIGARELLA, Luis, A. ,  IMRIE, David, A. ,  MCKINLEY, Harry ,  PLUMMER, William, T. ,  STERN, Howard ,  VAN TASSELL, Jon, E.

IPC: G02B7/04 ,  G06K7/10

CPC classification number: G02B26/0875 ,  G02B7/04 ,  G06K7/10811

公开(公告)号：EP1016028B1

公开(公告)日：2003-09-17

申请号：EP97946611.7

申请日：1997-11-07

Applicant: Robotic Vision Systems Inc.

Inventor： STERN, Howard ,  MAALI, Fereydoun

IPC: G06K9/00 ,  G06T1/00

CPC classification number: G06T5/50 ,  G01N21/8806 ,  G01N21/9501 ,  G01N21/95607 ,  G01N2021/8825 ,  G01N2021/95646 ,  G02B21/367 ,  G06T1/00 ,  G06T1/0007 ,  G06T7/0002 ,  G06T7/0004 ,  G06T2200/32 ,  G06T2207/30148 ,  G06T2207/30152

公开(公告)号：EP1060432A1

公开(公告)日：2000-12-20

申请号：EP99905800.1

申请日：1999-02-05

Applicant: Robotic Vision Systems Inc.

Inventor： STERN, Howard ,  LIU, Kuo-Ching ,  BLOSSER, Robert, C.

IPC: G02B26/10 ,  G01B11/00 ,  G01N21/00

CPC classification number: G01B11/00 ,  G01N21/88 ,  G02B26/10

Abstract: A system and method for correcting a scan pattern of a moving optical scanning system (110) that scans an object or pattern (130). A gantry (120) moves the optical system at a constant rate in a first direction. Using a light source and a first deflector, the scanning system quickly sweeps a light beam in a direction orthogonal to the motion of the gantry (120) by changing the angle of deflection of the first deflector linearly with time. To compensate for the gantry motion, the optical system includes a second deflector that deflects the light at a deflection angle determined as a function of the velocity of the gantry. The deflected light is focused on the object or pattern. Accordingly, the object or pattern is scanned along a corrected scan line orthogonal to first direction. The optical scanning system may also perform 'selected' scanning and 'look ahead/look behind' scanning.