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1. WO2020096857 - LASER MARKING THROUGH THE LENS OF AN IMAGE SCANNING SYSTEM WITH MULTIPLE LOCATION IMAGE CALIBRATION

Publication Number WO/2020/096857
Publication Date 14.05.2020
International Application No. PCT/US2019/059126
International Filing Date 31.10.2019
IPC
B41J 2/44 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
435characterised by selective application of radiation to a printing material or impression-transfer material
44using single radiation source, e.g. lighting beams or shutter arrangements
B23K 26/03 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
03Observing, e.g. monitoring, the workpiece
B23K 26/352 2014.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
352for surface treatment
B23K 26/362 2014.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
36Removing material
362Laser etching
B23K 26/082 2014.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
08Devices involving relative movement between laser beam and workpiece
082Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
G06T 3/40 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
3Geometric image transformation in the plane of the image
40Scaling of a whole image or part thereof
CPC
B23K 26/032
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
03Observing, e.g. monitoring, the workpiece
032using optical means
B23K 26/082
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
08Devices involving relative movement between laser beam and workpiece
082Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
B23K 26/352
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
352for surface treatment
B23K 26/362
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
36Removing material
362Laser etching
B41J 2/442
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, ; e.g. INK-JET PRINTERS, THERMAL PRINTERS; , i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
435characterised by selective application of radiation to a printing material or impression-transfer material
44using single radiation source ; per colour; , e.g. lighting beams or shutter arrangements
442using lasers
B41J 2/47
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, ; e.g. INK-JET PRINTERS, THERMAL PRINTERS; , i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
435characterised by selective application of radiation to a printing material or impression-transfer material
47using the combination of scanning and modulation of light
Applicants
  • ALLTEC ANGEWANDTE LASERLICHT TECHNOLOGIE GMBH [DE]/[DE]
  • BENAYAD-CHERIF, Faycal [US]/[US]
  • BAHNS, Christopher [US]/[US]
Inventors
  • BENAYAD-CHERIF, Faycal
  • BAHNS, Christopher
Agents
  • LANDO, Peter, C.
  • GERSTENZANG, Gregory, K.
Priority Data
62/755,86505.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LASER MARKING THROUGH THE LENS OF AN IMAGE SCANNING SYSTEM WITH MULTIPLE LOCATION IMAGE CALIBRATION
(FR) MARQUAGE AU LASER À TRAVERS LA LENTILLE D'UN SYSTÈME DE BALAYAGE D'IMAGE À ÉTALONNAGE D'IMAGE À EMPLACEMENTS MULTIPLES
Abstract
(EN)
A laser marking system includes a laser, an image capture device, a marking head including electromagnetic energy deflectors and a lens, beam paths of the laser of the image capture device both passing through the lens, and a computer system. The computer system is programmed to perform a method including generating an image calibration model at each of multiple areas across a marking field of the laser marking system, adjusting the electromagnetic energy deflectors to direct the beam path of the image capture device to multiple different locations within the marking field of the laser marking system, and capturing image tiles at each of the multiple different locations with the image capture device, wherein at each of the multiple different locations, if a location corresponds to an area at which an image calibration model was generated, correcting the image tile according to the image calibration model generated at the location.
(FR)
L'invention concerne un système de marquage au laser comprenant un laser, un dispositif de capture d'image, une tête de marquage comprenant des déflecteurs d'énergie électromagnétique et une lentille, des trajets de faisceau du laser du dispositif de capture d'image traverssant la lentille, ainsi qu'un système informatique. Le système informatique est programmé pour mettre en oeuvre un procédé consistant à générer un modèle d'étalonnage d'image au niveau de chacune des zones multiples sur un champ de marquage du système de marquage laser, à régler des déflecteurs d'énergie électromagnétique pour diriger le trajet de faisceau du dispositif de capture d'image vers des emplacements différents multiples dans le champ de marquage du système de marquage laser, et à capturer des tuiles d'image au niveau de chacun des emplacements différents multiples avec le dispositif de capture d'image, au niveau de chacun des emplacements différents multiples, si un emplacement correspond à une zone dans laquelle un modèle d'étalonnage d'image a été généré, corrigant la tuile d'image selon le modèle d'étalonnage d'image généré au niveau de l'emplacement.
Latest bibliographic data on file with the International Bureau