EP1138516B1 - Method for forming an internal engraved image in a flat body and apparatus for performing the method - Google Patents

Method for forming an internal engraved image in a flat body and apparatus for performing the method 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
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EP
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Prior art keywords
flat body
engraving
internal
measuring device
flat
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EP01107685A
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German (de)
French (fr)
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EP1138516A2 (en
EP1138516A3 (en
Inventor
Andreas Wienkamp
Remy Renaud
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Vitro Laser GmbH
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Vitro Laser GmbH
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    • 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.

Abstract

Method involves using high power density beam (3) to introduce the engraving (2) that is focused in a working region immediately below the surface of the flat body (1). The beam is focused in a layer below the flat body surface that is about 25 per cent of the thickness of the flat body. Independent claims are also included for the following: an arrangement for introducing at least one internal engraving into a flat body.

Description

Die Erfindung betrifft ein Verfahren zum Einbringen wenigstens einer Innengravur in einen flachen Körper insbesondere aus transparentem Material, vorzugsweise in ein Flachglas, der eine mechanische Vorspannung aufweist bzw. der nachfolgend eine mechanische Vorspannung erhält.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.

Die Erfindung betrifft auch eine Vorrichtung zum Einbringen wenigstens einer Innengravur in einen flachen Körper, insbesondere aus transparentem Material, vorzugsweise in ein Flachglas, der eine mechanische Vorspannung aufweist bzw. der nachfolgend eine mechanische Vorspannung erhält, umfassend wenigstens eine Strahlenquelle zum Erzeugen des Strahls hoher Leistungsdichte, eine Fokussieroptik zum Fokussieren des Strahls und eine Haltevorrichtung für den flachen Körper, insbesondere zur Durchführung des vorbezeichneten Verfahrens.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.

Flache Körper, vorzugsweise Flachgläser, werden für bestimmte Einsatzzwecke mechanisch vorgespannt. Durch das Vorspannen wird eine höhere mechanische Festigkeit erzielt. Das Vorspannen bewirkt zudem die Einstellung eines spezifischen krümeligen Bruchverhaltens, um eine Verletzungsgefahr bei Bruch des flachen Körpers zu verhindern.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.

Durch das Vorspannen werden in einem flachen Körper Abschnitte gegensätzlicher mechanischer Spannungen erzeugt. In der Regel stehen die Oberfläche bzw. die Oberflächen des flachen Körpers und die unmittelbar darunter liegenden Abschnitte unter Druckspannungen, während der Kernbereich des flachen Körpers unter Zugspannung steht.By biasing, portions of opposite mechanical stresses are generated in a flat body. Typically, 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.

Verfahren der eingangs genannten Gattung sind für die technische Kennzeichnung oder für die Dekoration von dreidimensionalen Körpern bekannt. Beispielsweise werden durch Innengravuren kompakte Glaskörper, wie Glaswürfel oder Glaskugeln, dekoriert oder gekennzeichnet.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.

Der Erfindung liegt die Aufgabe zugrunde, mit einem Verfahren der eingangs genannten Gattung auch vorgespannte flache Körper bzw. für eine Vorspannung vorgesehene flache Körper insbesondere aus transparentem Material mit einer Innengravur zu versehen. Weiterhin soll eine Vorrichtung zum Durchführen des Verfahrens aufgezeigt werden.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.

Diese Aufgabe ist verfahrensseitig erfindungsgemäß dadurch gelöst, daß für das Einbringen der Innengravur zumindestens ein Strahl mit hoher Leistungsdichte verwendet wird, der in einem Wirkvolumen unmittelbar unterhalb der Oberfläche des flachen Körpers fokussiert wird.This object is procedurally achieved according to the invention that 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.

Bei dem erfindungsgemäßen Verfahren wird für das Einbringen der Innengravur ein Strahl hoher Leistungsdichte verwendet. Dieser Strahl, vorzugsweise ein Laserstrahl, wird in einem Wirkvolumen unmittelbar unterhalb der Oberfläche des flachen Körpers fokussiert. Aus dem Wirkvolumen wird ein Innengravurpunkt ausgebildet. Aufgrund der Fokussierung unmittelbar unterhalb der Oberfläche des flachen Körpers ist der hergestellte Innengravurpunkt gleichfalls unmittelbar unterhalb, der Oberfläche des flachen Körpers angeordnet. Die Innengravur wird dabei vorzugsweise aus mehreren, voneinander jeweils separaten Innengravurpunkten ausgebildet, wobei jeder Innengravurpunkt durch ein Wirkvolumen ausgebildet wird.In the method according to the invention, a jet of high power density is used for introducing the inner engraving. This beam, preferably a laser beam, becomes focused in an effective volume immediately below the surface of the flat body. From the effective volume, 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.

Durch das erfindungsgemäße Fokussieren des Strahls hoher Leistungsdichte unmittelbar unterhalb der Oberfläche des flachen Körpers sind der bzw. sind die Innengravurpunkte in dem Abschnitt des flachen Körpers angeordnet, der unter Druckspannung steht. Es wird somit vermieden, Innengravurpunkte im Kernbereich des flachen Körpers, beispielsweise einer Flachglasscheibe, anzuordnen, der unter Zugspannung steht.By focusing the high power density beam just below the surface of the flat body according to the invention, 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.

Das erfindungsgemäße Verfahren ist auch bei einem flachen Körper anzuwenden, der nach einem Einbringen von Innengravurpunkten mechanisch vorgespannt wird. Auch bei diesem Körper ist nach dem erfindungsgemäßen Verfahren vorzugehen, sind also die Innengravurpunkte unmittelbar unterhalb seiner Oberfläche anzuordnen. Die Innengravurpunkte werden nach dem erfindungsgemäßen Verfahren derart unmittelbar unterhalb der Oberfläche des flachen Körpers angeordnet, daß sich die Innengravurpunkte innerhalb einer Schicht befinden, deren Dicke etwa 25 % der Gesamtdicke des Körpers beträgt. Der Strahl hoher Leistungsdichte wird somit derart fokussiert, daß die Wirkvolumina im oberen Viertel des zu behandelnden Körpers ausgebildet werden, wobei die Oberfläche des Körpers nicht verletzt wird.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.

Jeder Innengravurpunkt wird vorzugsweise mit einem Durchmesser ausgebildet, der etwa gleich dem Abstand einander benachbarter Gravurpunkte ist. Ein zu enges Anordnen einander benachbarter Innengravurpunkte würde zu einer Schwächung des gravierten Materials führen, die insbesondere bei einer Vorspannung zum Zerbrechen des Materials führen könnte. Dann würde nämlich eine lokale Zerstörung bei Auftreten von Zugspannungen weiter reißen und der Körper zerstört werden. Der Durchmesser eines Innengravurpunktes beträgt beispielsweise 100 bis 300 µm.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 Innengravurpunktes example, 100 to 300 microns.

Mit dem erfindungsgemäßen Verfahren können nach einer Weiterbildung der Erfindung wenigstens drei Innengravurpunkte dreidimensional zueinander angeordnet werden. Es ist somit möglich, neben zweidimensionalen auch dreidimensionale Innengravuren in einem flachen Körper auszubilden. Dabei ist darauf zu achten, daß sich sämtliche Innengravurpunkte einer dreidimensionalen Kennzeichnung innerhalb des Abschnittes befinden, der unter Druckspannungen steht.With the method according to the invention, according to a development of the invention, 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.

Jeder Innengravurpunkt ist bei einer zweidimensionalen oder bei einer dreidimensionalen Innengravur unterhalb der Oberfläche des flachen Körpers angeordnet. Bei zweidimensionalen Innengravuren ist vorzugsweise vorgesehen, daß jeder Innengravurpunkt in gleichem Abstand zur Oberfläche unterhalb der Oberfläche des flachen Körpers ausgebildet wird. Durch die Einstellung dieses gleichen Abstandes wird vorteilhaft vermieden, daß Innengravurpunkte innerhalb des Kernbereiches des flachen Körpers ausgebildet werden.Each interior engraving point is located below the surface of the flat body in a two-dimensional or three-dimensional interior engraving. In two-dimensional interior engraving, it is preferably provided that each interior engraving point be formed equidistant from the surface below the surface of the flat body. By setting this same distance is advantageously avoided that inner engraving points are formed within the core region of the flat body.

Vorrichtungsseitig ist die Aufgabe erfindungsgemäß dadurch gelöst, daß eine Vorrichtung der eingangs genannten Gattung eine Meßeinrichtung zum Messen des Abstandes zwischen der Fokussieroptik und der Oberfläche des flachen Körpers aufweist.On the device side, the object is achieved in that 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.

Bei dem Einbringen einer Innengravur in einen flachen Körper ist es erforderlich, daß die Wirkvolumina, aus denen die Innengravurpunkte gebildet werden, in den Abschnitt der Druckspannung eingebracht werden. Dieser Abschnitt weist bei flachen Körpern, beispielsweise bei Flachglas, eine geringe Höhe von ca. ein Viertel der Dikke auf. Dadurch ist es erforderlich, den in diesem Abschnitt fokussierten Strahl hoher Leistungsdichte auch dann exakt in diesem Abschnitt zu halten, wenn die Oberfläche des flachen Körpers nicht plan ist. Um dieses Halten zu gewährleisten, ist die Meßeinrichtung zum Messen des Abstandes zwischen der Fokussieroptik und der Oberfläche des flachen Körpers vorgesehen. Mit dieser kann der Abstand zwischen der Fokussieroptik und der Oberfläche exakt gemessen werden und es kann bei Bedarf eine Korrektur des Abstandes erfolgen.When an inner engraving is applied to a flat body, it is required that the effective volumes from which the inner engraving dots are formed be introduced into the portion of compressive stress. For flat bodies, for example flat glass, this section has a small height of about one quarter of the thickness. As a result, it is necessary to keep the high power density beam focused in this section exactly in that portion even if the surface of the flat body is not flat. To ensure this holding, 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.

Korrekturen sind insbesondere dann notwendig, wenn die Oberfläche des flachen Körpers wesentlich von einer planen Oberfläche abweicht. Aufgrund einer Ausstattung von insbesondere Flachgläsern mit häufig großen Abmessungen und in Relation dazu kleiner Dicken treten Wölbungen und Biegungen des flachen Körpers insgesamt auf, die sich auf den Abstand zwischen der Oberfläche dieses flachen Körpers und der Fokussieroptik auswirken. Dieses Auswirken ist insbesondere dann zu beachten, wenn mehrere Innengravurpunkte ausgebildet werden und dabei der Strahl zu dem behandelnden flachen Körper relativ bewegt wird. Dieses Bewegen kann durch ein Bewegen der Fokussieroptik oder durch ein Bewegen des zu behandelnden flachen Körpers mit der Haltevorrichtung, z. B. mit einem Haltetisch, oder durch Bewegungen beider Baueinheiten zueinander erfolgen. Während des Einbringens der Innengravurpunkte wird der Abstand zwischen der Oberfläche des flachen Körpers und der Fokussieroptik fortlaufend gemessen und es wird bei auftretenden Abweichungen z. B. aufgrund von Wölbungen und Biegungen der vorbestimmte Abstand sofort wieder eingestellt.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.

Dieses Einstellen kann durch eine Veränderung des Abstandes zwischen Körperoberfläche und Fokussieroptik erfolgen oder auch durch eine Veränderung der Brennweite der Fokussieroptik erfolgen.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.

Die Meßeinrichtung ist beispielsweise der Fokussieroptik zugeordnet. Sie kann dabei eine berührungslos messende Meßeinrichtung sein, vorzugsweise eine Laser-Meßeinrichtung. Neben Flachgläsern können auch flache Scheiben aus Kunststoffen behandelt werden.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.

Ausführungsbeispiele der Erfindung, aus denen sich weitere erfinderische Merkmale ergeben, sind in der Zeichnung dargestellt. Die beiden Figuren der Zeichnung zeigen Vorrichtungen zum Einbringen wenigstens einer Innengravur in einen flachen Körper.Embodiments of the invention, from which further inventive features result, are shown in the drawing. The two figures of the drawing show devices for introducing at least one interior engraving in a flat body.

Mit jeder Vorrichtung wird ein flacher Körper 1, der etwa plattenförmig ausgebildet ist, mit einer bzw. mehreren Innengravuren 2 versehen. Jede Innengravur 2 besteht aus mehreren jeweils voneinander separaten Innengravurpunkten, die in den gezeigten Ausführungsbeispielen etwa entlang einer Linie innerhalb des flachen Körpers 1 ausgebildet werden.With each device, 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.

Zum Einbringen der Innengravur 2 in den flachen Körper 1 dient ein Strahl 3 hoher Energiedichte (Fig. 1) bzw. ein über Galvanometerspiegel abgelenkter Strahl 3 hoher Energiedichte (Fig. 2). Jeder Strahl 3 ist ein Laserstrahl und wird in einer schematisch dargestellten Laserstrahlquelle 4 erzeugt und über einen oder gegebenenfalls mehrere Umlenkspiegel 5 in Richtung des flachen Körpers 1 gelenkt. Im Lichtgang des Strahls 3 ist eine Stelleinrichtung 6 zur Veränderung der Brennweite des Strahls 3 angeordnet.For introducing the inner engraving 2 in the flat body 1 is 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. In the light path of the beam 3, an adjusting device 6 for changing the focal length of the beam 3 is arranged.

Bei der Vorrichtung nach Fig. 2 ist die Galvanospiegel-Anordnung 7 nachfolgend zur Stelleinrichtung 6 zur Veränderung der Brennweite angeordnet.In the device according to FIG. 2, the galvanomirror arrangement 7 is arranged below the adjusting device 6 for changing the focal length.

Vor Auftreffen des Strahls 3 auf den flachen Körper 1 wird der Strahl 3 durch eine Fokussieroptik 8 geführt. Mit dieser erfolgt ein Fokussieren des Strahls 3 derart, daß er in einem Bereich unmittelbar unterhalb der Oberfläche 9 des flachen Körpers fokussiert ist. Die Fokussieroptik 8 ist beispielsweise als Planfeldobjektiv (f-theta-Optik) oder als telezentrische Optik ausgebildet.Before the jet 3 impinges on the flat body 1, 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.

Jede der Vorrichtungen weist darüber hinaus eine Meßeinrichtung 10 auf, die der jeweiligen Fokussieroptik 8 zugeordnet ist. Mit dieser Meßeinrichtung 10 ist der Abstand z zwischen der Fokussieroptik 8 und der dieser zugekehrten Oberfläche 9 des flachen Körpers 1 fortlaufend meßbar. Die Meßeinrichtung 10 arbeitet vorzugsweise berührungslos.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.

Der flache Körper 1 ist jeweils auf einem nicht weiter dargestellten Tisch angeordnet. Mit den Pfeilen x und y ist dargestellt, daß der Körper 1 mit dem Tisch in einer horizontalen Ebene frei bewegbar ist. Zudem kann die Fokussieroptik 8 bezüglich der Oberfläche 9 des flachen Körpers 1 in Richtung des mit z gekennzeichneten Pfeils veränderlich angeordnet sein. Auch die Fokussieroptik 8 kann in einer zur Ebene des Tisches parallelen Ebene entsprechend den Pfeilen x und y frei bewegbar sein.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. In addition, 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.

Claims (10)

  1. A process for introducing at least one internal engraving into a flat body consisting, in particular, of transparent material, preferably into a sheet glass, which exhibits a mechanical prestress or which is subsequently given a mechanical prestress,
    characterised in that
    for the purpose of introducing the engraving, use is made of at least one beam (3) of high power density which is focused in a working volume immediately below the surface of the flat body (1).
  2. Process according to Claim 1, characterised in that the beam (3) of high power density is focused in a layer below the surface of the flat body (1), the thickness of this layer amounting to approximately 25% of the total thickness of the body (1).
  3. Process according to Claim 1 or 2, characterised in that the internal engraving (2) is formed from several internal-engraving points which are separate from one another, each internal-engraving point being formed from a working volume.
  4. Process according to Claim 3, characterised in that each internal-engraving point is formed with a diameter that is approximately equal to the spacing of adjacent engraving points.
  5. Process according to one of the preceding claims, characterised in that at least three internal-engraving points are arranged three-dimensionally in relation to one another.
  6. Process according to one of Claims 1 to 4, characterised in that each internal-engraving point is formed below the surface (9) of the flat body (1) at an equal spacing from this surface (9).
  7. An apparatus for introducing at least one internal engraving into a flat body consisting, in particular, of transparent material, preferably into a sheet glass, which exhibits a mechanical prestress or which is subsequently given a mechanical prestress, comprising at least one source of radiation for generating the beam of high power density, focusing optics for focusing the beam, and a holding apparatus for the flat body, in particular for the purpose of implementing the process according to one of Claims 1 to 6,
    characterised in that
    said apparatus exhibits a measuring device (10) for measuring the spacing between the focusing optics (8) and the surface (9) of the flat body (1).
  8. Apparatus according to Claim 7, characterised in that the measuring device (10) is assigned to the focusing optics (8).
  9. Apparatus according to Claim 7 or 8, characterised in that the measuring device (10) is a measuring device (10) that measures in non-contacting manner, preferably a laser measuring device (10).
  10. Apparatus according to one of Claims 7 to 9, characterised in that the source of radiation is a laser-beam source (4).
EP01107685A 2000-03-29 2001-03-28 Method for forming an internal engraved image in a flat body and apparatus for performing the method Expired - Lifetime EP1138516B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10015702A DE10015702A1 (en) 2000-03-29 2000-03-29 Method for introducing at least one internal engraving into a flat body and device for carrying out the method
DE10015702 2000-03-29

Publications (3)

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EP1138516A2 EP1138516A2 (en) 2001-10-04
EP1138516A3 EP1138516A3 (en) 2003-07-23
EP1138516B1 true EP1138516B1 (en) 2006-02-22

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AT (1) ATE318217T1 (en)
DE (2) DE10015702A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007004524A1 (en) 2007-01-24 2008-07-31 Carl Zeiss Vision Gmbh Viewable structure e.g. line structure, producing method for use in e.g. spectacle lens, involves producing group of gravure points, where distance of adjacent gravure points is smaller than diameter of gravure points
DE202008017478U1 (en) 2008-07-17 2009-09-17 Schott Ag Photovoltaic module with partially tempered glass cover plate with interior engraving
DE102009025671A1 (en) 2008-06-19 2009-12-24 Andreas Mader Method for processing transparent and/or light permeable elements using radiation of high power density, comprises forming the elements from two discs connected to each other, where a connecting means are equipped between the discs
US7825350B2 (en) 2000-09-13 2010-11-02 Hamamatsu Photonics K.K. Laser processing method and laser processing apparatus
DE102009059015A1 (en) * 2009-12-17 2012-03-01 Heraeus Quarzglas Gmbh & Co. Kg Quartz glass component with opaque inner zone and method of making the same
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
WO2012167999A1 (en) 2011-06-09 2012-12-13 Cero Gmbh Method and device for machining a workpiece by means of scanned pulsed laser
CN101987554B (en) * 2009-08-07 2013-04-17 深圳市大族激光科技股份有限公司 Laser engraving device
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 (en) 2016-06-30 2018-01-03 Cero GmbH Method for machining the surface of prestressed glasses

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 (en) 2003-12-02 2005-06-30 Mtu Aero Engines Gmbh Method, device and test piece for testing a component, and use of the method and the device
US8629610B2 (en) 2006-01-12 2014-01-14 Ppg Industries Ohio, Inc. Display panel
AU2007204856B2 (en) 2006-01-12 2011-03-31 Ppg Industries Ohio, Inc. Display panel having laser induced light redirecting features
IT1394940B1 (en) * 2009-01-13 2012-07-27 Bottero Spa METHOD FOR THE CODIFICATION OF A LAMINATED GLASS SLAB AND LAMINATED GLASS SHEET OBTAINED WITH THIS METHOD
DE102012013683B4 (en) 2012-07-11 2021-04-29 Carl Zeiss Vision International Gmbh Spectacle lens, method for the production thereof, computer program and device for the production of a spectacle lens
DE102014205066A1 (en) 2014-03-19 2015-10-08 Schott Ag Prestressed glass article with laser engraving and manufacturing process
GB2527553B (en) 2014-06-25 2017-08-23 Fianium Ltd Laser processing

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1696714B1 (en) * 1968-03-13 1970-12-03 Zeiss Carl Fa Process for the production of a mark on transparent materials
FR2495982A1 (en) * 1980-12-16 1982-06-18 Saint Gobain Vitrage PROCESS FOR TREATING LAMINATED GLAZING, PARTICULARLY FOR EXECUTING A NON-FALSIFIABLE BRAND AND GLAZING OBTAINED
DE3425263A1 (en) * 1983-07-22 1985-01-31 Friedrich Schiller Universität, DDR 6900 Jena Method for the inscribing of information into the volume of materials by means of a laser beam
DE3826355A1 (en) * 1988-08-03 1990-04-26 Flachglas Ag METHOD FOR LABELING COMPOSITE COMPONENTS WITH LASER RADIATION, AND COMPOSITE COMPONENT PRODUCED BY THIS METHOD
IL99170A0 (en) * 1990-08-15 1992-07-15 United Distillers Plc Method and apparatus for sub-surface marking
AU5872994A (en) * 1992-12-18 1994-07-19 Firebird Traders Ltd. Process and apparatus for etching an image within a solid article
DE4326314A1 (en) * 1993-08-05 1995-02-09 Ver Glaswerke Gmbh Process for labeling a built-in car glass
DE4407547C2 (en) * 1994-03-07 1996-05-30 Swarovski & Co Body made of transparent material with a marking and process for its production
LT4108B (en) * 1995-05-12 1997-01-27 Uzdaroji Akcine Bendrove Eksma Method and apparatus for laser marking of products from transparent materials
DE19841547B4 (en) * 1998-09-11 2004-04-08 Martin-Luther-Universität Halle-Wittenberg Glasses with colored structures and processes for their manufacture

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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 (en) 2007-01-24 2022-02-03 Carl Zeiss Vision Gmbh Process for producing a visible structure with a plurality of engraving points arranged next to one another in a transparent object and transparent object
DE102007004524A1 (en) 2007-01-24 2008-07-31 Carl Zeiss Vision Gmbh Viewable structure e.g. line structure, producing method for use in e.g. spectacle lens, involves producing group of gravure points, where distance of adjacent gravure points is smaller than diameter of gravure points
DE102009025671A1 (en) 2008-06-19 2009-12-24 Andreas Mader Method for processing transparent and/or light permeable elements using radiation of high power density, comprises forming the elements from two discs connected to each other, where a connecting means are equipped between the discs
DE202008017478U1 (en) 2008-07-17 2009-09-17 Schott Ag Photovoltaic module with partially tempered glass cover plate with interior engraving
CN101987554B (en) * 2009-08-07 2013-04-17 深圳市大族激光科技股份有限公司 Laser engraving device
DE102009059015B4 (en) * 2009-12-17 2014-02-13 Heraeus Quarzglas Gmbh & Co. Kg Quartz glass component with opaque inner zone and method of making the same
DE102009059015A1 (en) * 2009-12-17 2012-03-01 Heraeus Quarzglas Gmbh & Co. Kg Quartz glass component with opaque inner zone and method of making the same
WO2012167999A1 (en) 2011-06-09 2012-12-13 Cero Gmbh Method and device for machining a workpiece by means of scanned pulsed laser
DE102011106097B4 (en) * 2011-06-09 2017-02-16 Cero Gmbh Method and device for machining a workpiece
DE102011106097A1 (en) 2011-06-09 2012-12-13 Cero Gmbh Method and device for machining a workpiece
EP3263271A1 (en) 2016-06-30 2018-01-03 Cero GmbH Method for machining the surface of prestressed glasses

Also Published As

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

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