EP1138516B1 - Procédé pour former une gravure dans la masse d'un corps plat et appareil pour la réalisation dudit procédé - Google Patents

Procédé pour former une gravure dans la masse d'un corps plat et appareil pour la réalisation dudit procédé Download PDF

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Publication number
EP1138516B1
EP1138516B1 EP01107685A EP01107685A EP1138516B1 EP 1138516 B1 EP1138516 B1 EP 1138516B1 EP 01107685 A EP01107685 A EP 01107685A EP 01107685 A EP01107685 A EP 01107685A EP 1138516 B1 EP1138516 B1 EP 1138516B1
Authority
EP
European Patent Office
Prior art keywords
flat body
engraving
internal
measuring device
flat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01107685A
Other languages
German (de)
English (en)
Other versions
EP1138516A2 (fr
EP1138516A3 (fr
Inventor
Andreas Wienkamp
Remy Renaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vitro Laser GmbH
Original Assignee
Vitro Laser GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vitro Laser GmbH filed Critical Vitro Laser GmbH
Publication of EP1138516A2 publication Critical patent/EP1138516A2/fr
Publication of EP1138516A3 publication Critical patent/EP1138516A3/fr
Application granted granted Critical
Publication of EP1138516B1 publication Critical patent/EP1138516B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/262—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used recording or marking of inorganic surfaces or materials, e.g. glass, metal, or ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used

Definitions

  • the invention relates to a method for introducing at least one inner engraving into a flat body, in particular made of transparent material, preferably in a flat glass, which has a mechanical bias or which subsequently receives a mechanical bias.
  • the invention also relates to a device for introducing at least one inner engraving into a flat body, in particular made of transparent material, preferably in a flat glass, which has a mechanical bias or subsequently receives a mechanical bias comprising at least one radiation source for generating the beam of high power density , a focusing optics for focusing the beam and a holding device for the flat body, in particular for carrying out the aforementioned method.
  • Flat bodies preferably flat glasses, are mechanically biased for certain applications. By pre-stressing, a higher mechanical strength is achieved. The biasing also causes the setting of a specific crumbly breakage behavior, to prevent a risk of injury when breaking the flat body.
  • portions of opposite mechanical stresses are generated in a flat body.
  • the surface or surfaces of the flat body and the portions immediately below are under compressive stress while the core portion of the flat body is under tension.
  • Methods of the type mentioned are known for technical marking or for the decoration of three-dimensional bodies. For example, by internal engraving compact glass body, such as glass cubes or glass beads, decorated or marked.
  • the invention has for its object to provide with a method of the type mentioned also biased flat body or provided for a bias flat body, in particular made of transparent material with an inner engraving. Furthermore, a device for carrying out the method will be shown.
  • At least one beam with high power density is used for introducing the inner engraving, which is focused in an effective volume immediately below the surface of the flat body.
  • a jet of high power density is used for introducing the inner engraving.
  • This beam preferably a laser beam
  • an inner engraving point is formed. Due to the focusing just below the surface of the flat body, the produced inner engraving point is also located immediately below the surface of the flat body.
  • the inner engraving is preferably formed from a plurality of separate inner engraving points, each inner engraving point being formed by an effective volume.
  • the inner engraving points are located in the portion of the flat body which is under compressive stress. It is thus avoided to arrange inner engraving points in the core region of the flat body, for example a flat glass pane, which is under tension.
  • the inventive method is also applicable to a flat body, which is mechanically biased after introduction of inner engraving points. Also in this body is to proceed according to the inventive method, so the inner engraving points are to be arranged directly below its surface.
  • the inner engraving points are arranged according to the inventive method just below the surface of the flat body so that the inner engraving points are within a layer whose thickness is about 25% of the total thickness of the body.
  • the high power density beam is thus focused so that the effective volumes are formed in the upper quarter of the body to be treated, whereby the surface of the body is not injured.
  • Each inner engraving point is preferably formed with a diameter which is approximately equal to the distance of adjacent engraving points. Too close arrangement of adjacent inner engraving points would lead to a weakening of the engraved material, which could lead to the breaking of the material, in particular at a bias. Then a local destruction would continue to tear when tensile stresses occur and the body would be destroyed.
  • the diameter of a réellegravurstructures example, 100 to 300 microns.
  • At least three inner engraving points can be arranged three-dimensionally relative to one another. It is thus possible to form two-dimensional and three-dimensional interior engravings in a flat body. Care must be taken to ensure that all inner engraving points of a three-dimensional marking are located within the section under compressive stresses.
  • Each interior engraving point is located below the surface of the flat body in a two-dimensional or three-dimensional interior engraving.
  • each interior engraving point be formed equidistant from the surface below the surface of the flat body.
  • a device of the aforementioned Genus has a measuring device for measuring the distance between the focusing optics and the surface of the flat body.
  • the effective volumes from which the inner engraving dots are formed be introduced into the portion of compressive stress.
  • this section has a small height of about one quarter of the thickness.
  • the measuring device is provided for measuring the distance between the focusing optics and the surface of the flat body. With this, the distance between the focusing optics and the surface can be measured accurately and it can be done if necessary, a correction of the distance.
  • Corrections are particularly necessary when the surface of the flat body deviates significantly from a flat surface. Due to the equipment of particular flat glasses with often large dimensions and in relation to small thicknesses occur bulges and bends of the flat body in total, which affect the distance between the surface of this flat body and the focusing optics. This effect is particularly important when multiple internal engraving points are formed, while the beam is relatively moved to the treating flat body. This movement can be achieved by moving the focusing optics or by moving the flat body to be treated with the holding device, e.g. B. with a holding table, or done by movements of both units to each other. During the introduction of the inner engraving points, the distance between the surface of the flat body and the focusing optics is continuously measured and it is z. B. due to bumps and bends the predetermined distance immediately set again.
  • This setting can be done by changing the distance between the body surface and the focusing optics or by changing the focal length of the focusing optics.
  • the measuring device is associated, for example, the focusing optics. It may be a non-contact measuring device, preferably a laser measuring device. In addition to flat glass, flat plastic panes can also be treated.
  • a flat body 1 which is approximately plate-shaped, provided with one or more inner engravings 2.
  • Each inner engraving 2 consists of a plurality of each separate inner engraving points, which are formed in the illustrated embodiments approximately along a line within the flat body 1.
  • a beam 3 high energy density (Fig. 1) or a Jet deflected by galvanometer mirror 3 high energy density (Fig. 2).
  • Each beam 3 is a laser beam and is generated in a schematically illustrated laser beam source 4 and directed via one or optionally a plurality of deflecting mirrors 5 in the direction of the flat body 1.
  • an adjusting device 6 for changing the focal length of the beam 3 is arranged.
  • the galvanomirror arrangement 7 is arranged below the adjusting device 6 for changing the focal length.
  • the beam 3 is guided through a focusing optics 8. With this focusing of the beam 3 is such that it is focused in an area immediately below the surface 9 of the flat body.
  • the focusing optics 8 is designed, for example, as a planar field objective (f-theta optic) or as a telecentric optic.
  • Each of the devices also has a measuring device 10 which is associated with the respective focusing optics 8. With this measuring device 10, the distance z between the focusing optics 8 and this facing surface 9 of the flat body 1 is continuously measurable.
  • the measuring device 10 preferably operates without contact.
  • the flat body 1 is arranged in each case on a table, not shown. With the arrows x and y is shown that the body 1 with the table in a horizontal plane is freely movable.
  • the focusing optics 8 with respect to the surface 9 of the flat body 1 in the direction of the arrow marked z be arranged changeable. Also, the focusing optics 8 may be freely movable in a plane parallel to the plane of the table according to the arrows x and y.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laser Beam Processing (AREA)
  • Surface Treatment Of Glass (AREA)
  • Adornments (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Claims (10)

  1. Procédé de réalisation d'une gravure intérieure au moins dans un corps plat, en particulier en une matière transparente, de préférence dans un verre plat, lequel corps plat présente une précontrainte mécanique ou reçoit ultérieurement une précontrainte mécanique,
    caractérisé en ce que
    un faisceau (3) d'une puissance volumique élevée est employé pour la réalisation, faisceau qui est mis au point dans un volume efficace immédiatement au-dessous de la surface du corps plat (1).
  2. Procédé selon la revendication 1, caractérisé en ce que le faisceau (3) de puissance volumique élevée est mis au point dans une couche au-dessous de la surface du corps plat (1), l'épaisseur de ladite couche correspondant à 25 % environ de l'épaisseur totale du corps (1).
  3. Procédé selon les revendications 1 ou 2, caractérisé en ce que la gravure intérieure (2) est formée par plusieurs points de gravure intérieure respectivement séparés les uns des autres, chaque point de gravure intérieure étant conçu à partir d'un volume efficace.
  4. Procédé selon la revendication 3, caractérisé en ce que chaque point de gravure intérieure est conçu avec un diamètre qui est à peu près égal à la distance entre des points de gravure voisins.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'au moins trois points de gravure intérieure sont disposés de manière tridimensionnelle les uns par rapport aux autres.
  6. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que chaque point de gravure intérieure est conçu au-dessous de la surface (9) du corps plat (1) à distance égale par rapport à ladite surface (9).
  7. Dispositif de réalisation d'une gravure intérieure au moins dans un corps plat, en particulier en une matière transparente, de préférence en un verre plat, lequel corps plat présente une précontrainte mécanique ou reçoit ultérieurement une précontrainte mécanique, comprenant au moins une source de faisceau pour la production du faisceau de puissance volumique élevée, une optique de mise au point pour la mise au point du faisceau et un dispositif de maintien pour le corps plat, en particulier pour la réalisation du procédé selon l'une des revendications 1 à 6,
    caractérisé en ce que
    il présente un dispositif de mesure (10) pour mesurer la distance entre l'optique de mise au point (8) et la surface (9) du corps plat (1).
  8. Dispositif selon la revendication 7, caractérisé en ce que le dispositif de mesure (10) est associé à l'optique de mise au point (8).
  9. Dispositif selon la revendication 7 ou 8, caractérisé en ce que le dispositif de mesure (10) est un dispositif de mesure sans contact (10), de préférence un dispositif de mesure au laser (10).
  10. Dispositif selon l'une des revendications 7 à 9, caractérisé en ce que la source de faisceau est une source de faisceau laser.
EP01107685A 2000-03-29 2001-03-28 Procédé pour former une gravure dans la masse d'un corps plat et appareil pour la réalisation dudit procédé Expired - Lifetime EP1138516B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10015702A DE10015702A1 (de) 2000-03-29 2000-03-29 Verfahren zum Einbringen wenigstens einer Innengravur in einen flachen Körper und Vorrichtung zum Durchführen des Verfahrens
DE10015702 2000-03-29

Publications (3)

Publication Number Publication Date
EP1138516A2 EP1138516A2 (fr) 2001-10-04
EP1138516A3 EP1138516A3 (fr) 2003-07-23
EP1138516B1 true EP1138516B1 (fr) 2006-02-22

Family

ID=7636891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01107685A Expired - Lifetime EP1138516B1 (fr) 2000-03-29 2001-03-28 Procédé pour former une gravure dans la masse d'un corps plat et appareil pour la réalisation dudit procédé

Country Status (3)

Country Link
EP (1) EP1138516B1 (fr)
AT (1) ATE318217T1 (fr)
DE (2) DE10015702A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007004524A1 (de) 2007-01-24 2008-07-31 Carl Zeiss Vision Gmbh Verfahren zur Erzeugung einer sichtbaren Struktur mit mehreren nebeneinander angeordneten Gravurpunkten in einem transparenten Gegenstand sowie transparenter Gegenstand
DE202008017478U1 (de) 2008-07-17 2009-09-17 Schott Ag Photovoltaik-Modul mit teilvorgespannter gläserner Abdeckscheibe mit Innengravur
DE102009025671A1 (de) 2008-06-19 2009-12-24 Andreas Mader Verfahren zur Bearbeitung eines insbesondere transparenten und/oder lichtdurchlässigen Elements
US7825350B2 (en) 2000-09-13 2010-11-02 Hamamatsu Photonics K.K. Laser processing method and laser processing apparatus
DE102009059015A1 (de) * 2009-12-17 2012-03-01 Heraeus Quarzglas Gmbh & Co. Kg Quarzglasbauteil mit opaker Innenzone sowie Verfahren zur Herstellung desselben
US8247734B2 (en) 2003-03-11 2012-08-21 Hamamatsu Photonics K.K. Laser beam machining method
US8263479B2 (en) 2002-12-03 2012-09-11 Hamamatsu Photonics K.K. Method for cutting semiconductor substrate
US8304325B2 (en) 2002-03-12 2012-11-06 Hamamatsu-Photonics K.K. Substrate dividing method
DE102011106097A1 (de) 2011-06-09 2012-12-13 Cero Gmbh Verfahren und Vorrichtung zum Bearbeiten eines Werkstückes
CN101987554B (zh) * 2009-08-07 2013-04-17 深圳市大族激光科技股份有限公司 一种激光雕刻装置
US8673745B2 (en) 2002-03-12 2014-03-18 Hamamatsu Photonics K.K. Method of cutting object to be processed
US8685838B2 (en) 2003-03-12 2014-04-01 Hamamatsu Photonics K.K. Laser beam machining method
EP3263271A1 (fr) 2016-06-30 2018-01-03 Cero GmbH Procédé de traitement de la surface de verres précontraints

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI326626B (en) 2002-03-12 2010-07-01 Hamamatsu Photonics Kk Laser processing method
DE10356223A1 (de) 2003-12-02 2005-06-30 Mtu Aero Engines Gmbh Verfahren, Vorrichtung und Probekörper zum Prüfen eines Bauteils, sowie Verwendung des Verfahrens und der Vorrichtung
ES2383915T3 (es) 2006-01-12 2012-06-27 Ppg Industries Ohio, Inc. Panel pantalla con características de redirección de la luz producida por láser
US8629610B2 (en) 2006-01-12 2014-01-14 Ppg Industries Ohio, Inc. Display panel
IT1394940B1 (it) * 2009-01-13 2012-07-27 Bottero Spa Metodo per la codifica di una lastra di vetro stratificata e lastra di vetro stratificata ottenuta con tale metodo
DE102012013683B4 (de) 2012-07-11 2021-04-29 Carl Zeiss Vision International Gmbh Brillenlinse, Verfahren zu deren Herstellung, Computerprogramm sowie Vorrichtung zur Herstellung einer Brillenlinse
DE102014205066A1 (de) 2014-03-19 2015-10-08 Schott Ag Vorgespannter Glasartikel mit Laserinnengravur und Herstellverfahren
GB2527553B (en) 2014-06-25 2017-08-23 Fianium Ltd Laser processing

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FR2495982A1 (fr) * 1980-12-16 1982-06-18 Saint Gobain Vitrage Procede de traitement d'un vitrage feuillete, notamment pour y executer une marque non falsifiable et vitrages obtenus
DE3425263A1 (de) * 1983-07-22 1985-01-31 Friedrich Schiller Universität, DDR 6900 Jena Verfahren zum einschreiben von informationen in das volumen von materialien mittels laserstrahl
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WO1994014567A1 (fr) * 1992-12-18 1994-07-07 Firebird Traders Ltd. Procede et appareil de gravure d'une image dans un article solide
DE4326314A1 (de) * 1993-08-05 1995-02-09 Ver Glaswerke Gmbh Verfahren zum Beschriften einer eingebauten Autoglasscheibe
DE4407547C2 (de) * 1994-03-07 1996-05-30 Swarovski & Co Körper aus transparentem Material mit einer Markierung und Verfahren zu dessen Herstellung
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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8969761B2 (en) 2000-09-13 2015-03-03 Hamamatsu Photonics K.K. Method of cutting a wafer-like object and semiconductor chip
US8946589B2 (en) 2000-09-13 2015-02-03 Hamamatsu Photonics K.K. Method of cutting a substrate, method of cutting a wafer-like object, and method of manufacturing a semiconductor device
US7825350B2 (en) 2000-09-13 2010-11-02 Hamamatsu Photonics K.K. Laser processing method and laser processing apparatus
US8933369B2 (en) 2000-09-13 2015-01-13 Hamamatsu Photonics K.K. Method of cutting a substrate and method of manufacturing a semiconductor device
US8927900B2 (en) 2000-09-13 2015-01-06 Hamamatsu Photonics K.K. Method of cutting a substrate, method of processing a wafer-like object, and method of manufacturing a semiconductor device
US8304325B2 (en) 2002-03-12 2012-11-06 Hamamatsu-Photonics K.K. Substrate dividing method
US8673745B2 (en) 2002-03-12 2014-03-18 Hamamatsu Photonics K.K. Method of cutting object to be processed
US8409968B2 (en) 2002-12-03 2013-04-02 Hamamatsu Photonics K.K. Method of cutting semiconductor substrate via modified region formation and subsequent sheet expansion
US8263479B2 (en) 2002-12-03 2012-09-11 Hamamatsu Photonics K.K. Method for cutting semiconductor substrate
US8247734B2 (en) 2003-03-11 2012-08-21 Hamamatsu Photonics K.K. Laser beam machining method
US8685838B2 (en) 2003-03-12 2014-04-01 Hamamatsu Photonics K.K. Laser beam machining method
DE102007004524B4 (de) 2007-01-24 2022-02-03 Carl Zeiss Vision Gmbh Verfahren zur Erzeugung einer sichtbaren Struktur mit mehreren nebeneinander angeordneten Gravurpunkten in einem transparenten Gegenstand sowie transparenter Gegenstand
DE102007004524A1 (de) 2007-01-24 2008-07-31 Carl Zeiss Vision Gmbh Verfahren zur Erzeugung einer sichtbaren Struktur mit mehreren nebeneinander angeordneten Gravurpunkten in einem transparenten Gegenstand sowie transparenter Gegenstand
DE102009025671A1 (de) 2008-06-19 2009-12-24 Andreas Mader Verfahren zur Bearbeitung eines insbesondere transparenten und/oder lichtdurchlässigen Elements
DE202008017478U1 (de) 2008-07-17 2009-09-17 Schott Ag Photovoltaik-Modul mit teilvorgespannter gläserner Abdeckscheibe mit Innengravur
CN101987554B (zh) * 2009-08-07 2013-04-17 深圳市大族激光科技股份有限公司 一种激光雕刻装置
DE102009059015B4 (de) * 2009-12-17 2014-02-13 Heraeus Quarzglas Gmbh & Co. Kg Quarzglasbauteil mit opaker Innenzone sowie Verfahren zur Herstellung desselben
DE102009059015A1 (de) * 2009-12-17 2012-03-01 Heraeus Quarzglas Gmbh & Co. Kg Quarzglasbauteil mit opaker Innenzone sowie Verfahren zur Herstellung desselben
DE102011106097A1 (de) 2011-06-09 2012-12-13 Cero Gmbh Verfahren und Vorrichtung zum Bearbeiten eines Werkstückes
DE102011106097B4 (de) * 2011-06-09 2017-02-16 Cero Gmbh Verfahren und Vorrichtung zum Bearbeiten eines Werkstückes
WO2012167999A1 (fr) 2011-06-09 2012-12-13 Cero Gmbh Procédé et dispositif de traitement d'une pièce au moyen d'un laser scanné et pulsé
EP3263271A1 (fr) 2016-06-30 2018-01-03 Cero GmbH Procédé de traitement de la surface de verres précontraints

Also Published As

Publication number Publication date
EP1138516A2 (fr) 2001-10-04
DE50108969D1 (de) 2006-04-27
EP1138516A3 (fr) 2003-07-23
ATE318217T1 (de) 2006-03-15
DE10015702A1 (de) 2001-10-18

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