EP0961688B1 - Vorrichtung zum beschriften von materialien mit einem laser - Google Patents
Vorrichtung zum beschriften von materialien mit einem laser Download PDFInfo
- Publication number
- EP0961688B1 EP0961688B1 EP98912243A EP98912243A EP0961688B1 EP 0961688 B1 EP0961688 B1 EP 0961688B1 EP 98912243 A EP98912243 A EP 98912243A EP 98912243 A EP98912243 A EP 98912243A EP 0961688 B1 EP0961688 B1 EP 0961688B1
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- laser
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- crystal
- control unit
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/44—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using single radiation source per colour, e.g. lighting beams or shutter arrangements
- B41J2/442—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using single radiation source per colour, e.g. lighting beams or shutter arrangements using lasers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/36—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for portability, i.e. hand-held printers or laptop printers
Definitions
- the invention relates to a device for labeling of materials with a laser according to the preamble of claim 1.
- a resonator is arranged in the laser head of the solid-state laser, that of a so-called pump chamber, two mirrors and an acousto-optical switch, a so-called Q switch.
- a so-called pump chamber There are one in the pumping chamber YAG crystal rod and one or more krypton arc lamps, whose light is imaged in the crystal stick, which on emits light with a predetermined wavelength at both end faces. This light is reflected in by the two mirrors reflects the crystal rod, with the mirror on the rear End of the resonator reflects about 99.9% during the front mirror transmits 12% and thus the working beam forms.
- the Q-Switch interrupts the work beam up to 40,000 times per second and thus generates power peaks up to 1,000 times the continuous wave or cw laser operation.
- the resonator also contains a mechanical switch (Shutter) to interrupt the laser beam and a bracket, in which a fashion aperture is fixed for specific applications to a higher beam quality (e.g. in basic mode) to reach.
- a mechanical switch Shutter
- the Laser beam leaving the resonator by a factor of 2 to 10 expanded.
- the expanded laser beam is in one Deflection unit using two galvanometer mirrors in X and Deflected in the Y direction and via a flat field focusing lens focused on one workpiece.
- the known laser marker is a laser system with a Coordinate table, a rotary indexing table with an inlet and outlet tunnel and optionally with a double head arrangement trained as he also as a solid-state laser Material processing, that means for cutting, joining, drilling and the like.
- Is used with high laser powers wherein the laser also with a supply cabinet and if necessary to connect with an external heat exchanger is.
- Such a laser marking system as they is also the subject of DE 33 18 768 Al, is voluminous built up and can therefore only be used stationary. She also has considerable power requirements and low efficiency, because a lot of the power consumed to ensure proper operation using the Cooling device must be removed.
- Such a laser system has considerable dimensions and requires a water connection for cooling the Lasers and a three-phase connection for a power requirement of approx. 8 kW.
- This laser system requires a lot of maintenance, an ion exchanger because of the water connection and a particle filter are required and high lamp consumption as well as considerable wear of the pump chamber must be accepted.
- Another laser marking machine is from JP-A-08 001 999 known to have a low power laser (Low-power laser) and a deflection unit. Means this plant is on a light sensitive surface an image of a drum by electrostatic charge generated. To do this, the drum is laser beamed exposed. Expose to the entire surface of the drum to be able to, the drum rotates about its axis of rotation. In addition is the deflection unit in the longitudinal direction of the drum movably arranged along the surface of the drum.
- the known device is used in a laser printer, to label paper.
- toner is applied to the Drum applied to the electrostatically charged only Make the drum stick. Subsequently will use the paper to apply the toner to the paper passed over the drum.
- the known device has the disadvantage that it an elaborate and accurate guide is required to ensure adequate Relative movement between the drum and the deflection unit to ensure the entire surface of the Drum can be reached by the laser beam. can. Amongst other things this requires a complex adjustment device to ensure that the laser beam by means of the deflection unit also reached any position on the surface of the drum.
- the known device must be permanently installed in one place. To the well-known To be able to use the device in another location it must first be dismantled, transported to the other location and then reassembled. This requires one enormous effort that causes high costs. Basically the known device can therefore only be used in a stationary manner.
- the object of the present invention is a device for labeling almost any material various ways with a laser with small dimensions and light weight and optimal manageability and greatest possible mobility with low operating costs create.
- the solution according to the invention creates a mobile device for labeling objects with a solid-state laser, the themselves by small dimensions and light weight as well characterized by a simple structure.
- the labeling device is both regarding data entry as well with regard to the dispensing head, can be configured variably and can with any additional devices, such as one digital video camera, a CCD imager, a scanner and the like.
- Any configuration can be in at least one housing of the marking laser for an application-oriented Structure to be created.
- the labeling device from a handheld device contains a deflection unit and a solid-state laser and which is connected to a portable device via a cable connection which is a control device and a power supply device has, for example an accumulator and / or a power supply. It is also an interface for connecting the control device to a external control and / or input unit provided.
- the handheld device contains only the deflection unit and is over a fiber optic cable connected to a carrying device that the Solid state laser, the control device and the power supply device contains an interface for connecting the control device to the external one Control and / or input unit is provided.
- all modules in can be summarized in a housing that as a handheld device or Tabletop device is designed.
- the dimensions are so compact that the handheld device is designed, for example, in the form of a pistol and the carrying device can be accommodated in a housing can with a hip and / or shoulder strap Operator is connectable.
- maximum mobility is achieved by the operator permitted, laser inscriptions in any place independently by a supply cabinet or the like.
- the handheld device with a scanning unit, for example a scanner, a video camera or a digital camera.
- a scanning unit for example a scanner, a video camera or a digital camera.
- an image is taken with the scanning unit is applied to an object by means of the hand-held device can be.
- the device is therefore particularly suitable for the management of a warehouse in which goods are stored are provided with a barcode for identification are.
- the barcodes are Read scanners, to a computer arranged in the hand-held device or forwarded to another, higher-level central computer and processed there. Should the barcode one time need to be changed, the old barcode very easily made unrecognizable or destroyed and the new barcode is applied to the goods.
- the solution is a recording unit for those to be labeled Objects provided in which a distance measuring device for Delivery of a controlling the focusing of the laser beam Distance measuring signal and a switching device for release of the laser beam with correct positioning of the one to be labeled Object are arranged.
- a distance measuring device for Delivery of a controlling the focusing of the laser beam Distance measuring signal and a switching device for release of the laser beam with correct positioning of the one to be labeled Object are arranged.
- it is a mechanical stop for static focusing of the Laser beam provided.
- the arrangement of a recording unit for labeling Objects ensures a safe positioning of the labeling object in the focal plane of the laser beam as well as safe handling of the labeling device.
- a lens system for example a lens system an autofocus camera.
- control device wireless via a radio, infrared or ultrasound transmission and Receiver unit with an external control and / or input unit connected.
- control device as well as, if applicable Parts of the power supply device from film circuits built using SMD techniques and are therefore particularly suitable for a compact Structure and housing in component housings, which on Body of the operator can be worn.
- the laser consists of one with one Laser diode longitudinally pumped solid-state laser, the one Laser bench with a laser crystal, a Q switch, one highly reflective resonator mirror and a decoupling mirror contains, preferably the laser crystal none or the lowest possible stress birefringence and also a long fluorescence life with the lowest possible Has dimensions.
- the solid-state laser is optionally available with an active Q-switch, i.e. with an optoacoustic crystal or with a passive Q-switch and a laser diode, which is operated in pulsed mode, among other things.
- an active Q-switch i.e. with an optoacoustic crystal or with a passive Q-switch and a laser diode, which is operated in pulsed mode, among other things.
- the laser diode preferably has the highest possible Efficiency.
- the Laser diode with a cooling element, for example with a Peltier element, chilled. It is envisaged both Laser diode driver as well as the Peltier driver either in Handheld device or to be arranged in the carrying device. It is under "Driver" the corresponding supply board of a component Roger that.
- the individual laser components are preferably very arranged compactly to each other to a minimum dimension to achieve, which ensures mobile handling.
- a short resonator geometry is used so that very short laser pulses and thus a high peak pulse power be generated.
- the short resonator geometry preferably by a folded Beam path by means of a corresponding mirror arrangement, for example two arranged at 45 ° to the beam axis Mirror, provided.
- the device also has optics Beam expansion, preferably by means of two lenses.
- optics Beam expansion preferably by means of two lenses.
- the beam expansion by another, consisting of at least two mirrors Mirror system provided that preferably also a folded beam path through multiple Has reflection.
- polarizers provided to generate polarized laser light.
- this light can also pass through the laser crystal be generated yourself.
- Diffraction efficiency of an acousto-optical quality switching element is particularly advantageous because since the device according to the invention preferably at least optics with high diffraction efficiency, in particular a crystal, which has the laser process in the resonator with low radio frequency power input at the same time interrupts efficiently.
- the elements of the device according to the invention made of fiber composite materials, ceramic or plastic manufactured.
- the optics are glued assembled and / or attached.
- a drive unit a read / write head of a data memory, in particular a magnetic or optical data storage, to provide.
- the invention is not based on this Type of drive unit restricted. Rather, too conventional drive units, for example galvanometer scanners, act as drive units for the deflection unit become.
- Block diagrams of devices for labeling objects with a solid-state laser are made up of one different groupings of similar components together. They can be illustrated by further examples supplement, which consist of similar groups, for example the summary of all assemblies in a laser marking device provided with a housing, that in the form of a tabletop device as a mobile labeling station is trained.
- labeling includes every type of object marking understood, for example the mistake with any font, but also the creation of Picture elements and three-dimensional engravings. Farther the term “labeling” is used to remove labeling elements by removing surface layers (e.g. barcodes, graffiti, etc.) and the like.
- FIG. 1 shows the block diagram of a compact hand laser marking device, coming from a handheld device 1 and a one- or two-part carrying device 2.
- the handheld device 1 contains in this embodiment a deflection unit 7 in front of the object to be labeled is placed or with a recording unit for recording and adjustment of the object to be labeled can be connected is.
- the hand-held device 1 also contains a scanning unit 8, for example from a scanner, a CCD image converter or a digital video camera.
- the carrying device 2 contains a control device 21, a Solid-state laser 4 and a power supply device 22, which is connected to the units of the carrying device.
- the Control device 21 has a microprocessor 11, a RF generator 12, a read / write memory or a different storage medium 13, signal amplifier 200 for Amplification of the control signals for those in the deflection unit 7 mirror adjustments (galvanometer scanner) and an input and monitoring unit 14 on, while the solid-state laser 4 from a laser bank 5 (or another mechanically stable construction of the Laser components) and a laser diode 6.
- the Laser bank 5 contains a longitudinal or transverse pumped laser crystal 50, a Q switch 51 (active or passive Q-switch) and a highly reflective resonator mirror 52 and a coupling mirror 53.
- the signal amplifiers 200 may omitted because the drive unit of the read / write head is on already has such signal amplifiers.
- the output of the solid-state laser 4 is via a glass fiber cable 17 connected to the deflection unit 7.
- the fiber optic cable 17 can be combined with an electrical cable the connecting lines 31 between the microprocessor 11 and the scanning unit 8, the microprocessor 11 and the Deflection unit 7 and a power supply cable for connection the power supply device 22 with the handheld device 1 contains.
- the control device is arranged separately 21 and the solid-state laser 4 from the power supply device 22, for example in different housings or parts of a housing is an additional power supply cable between the control device 21 and the solid-state laser 4 on the one hand and the power supply device 22 on the other hand.
- the power supply device 22 is composed of an accumulator 9 and a power supply 10 together. In this Power supply device is also the driver of one Peltier element, not shown, provided for cooling arranged.
- An external control and monitoring unit is via an interface 15 3 with the microprocessor 11 of the control device 21 connected to input any data.
- an external control and monitoring unit is via an interface 15 3 with the microprocessor 11 of the control device 21 connected to input any data.
- a cable external control and monitoring unit 3 is also a wireless transmission possible, so that instead of one Plug connection as interface 15 an electromagnetic electro-optical or electro-acoustic transmission of Signals between an external control and monitoring unit and the control device 21 can be provided can.
- direct data entry for example done via a miniature laptop.
- the solid-state laser 4 consists of a laser diode 6 longitudinally or transversely pumped solid-state lasers, its laser bank 5 to increase efficiency and thus maximum power output contains no polarizers.
- Laser crystal 50 becomes a crystal with no or lowest possible voltage birefringence used, the has minimal dimensions.
- its RF power for example less than or equal to 2 to 4 watts, and an optimal choice of the laser crystal 50 can the laser bench 5 can be built extremely compact, because at low Only a small amount of heat is dissipated.
- the operation of the laser bank 5 can optionally be continuous pumped with an active Q-switch (RF source) below Use of an optoacoustic crystal or with a passive Q-switch.
- RF source active Q-switch
- Labeling device can by using a folded beam path with mirrors and the like in the deflection unit 7 or in the laser head, so that overall a portable laser marking device with the lowest possible outer dimensions and weight is created.
- FIG. 2 A variant shown in Figure 2 as a block diagram a laser marking device shows the summary of the solid-state laser 4 with the deflection unit 7 in a handheld device 1 and the summary of the control device 21 with the power supply device 22 in one Carrier 2 together.
- the control and supply device is electrical Line 18 connected to the handheld device 1.
- a further connection is via an interface 15 with an external Control and monitoring unit 3 and with one Scanning unit 8 is provided, which is analogous to the embodiment 1 from a digital (video) camera, a CCD image converter or a scanner can exist.
- the Scanning unit 8 can also be analogous to the arrangement according to FIG Figure 1 can be coupled with the handheld device 1, so that the Handheld device 1 can also be used for signal recording. About that in addition, two are not shown in the carrying device 2 Signal amplifier for amplifying the control signals for the mirror adjustments located in the deflection unit 7 arranged.
- FIG. 3 shows the use in a schematic sketch the hand laser marking device according to the invention and their composition from a handheld device 1 and a Carrier 2, which in this embodiment has a hip or lap belt 16 connected around an operator's waist is attachable.
- Alternative types of mounting the Carriers are a backpack shape with on the back too fastening carrying device as well as lateral (belt) fastenings.
- connection between the handheld device 1 and the carrying device 2 is established via a cable connection 17, 18 optionally from a fiber optic cable and / or an electrical one Connection cable exists.
- the handheld device 1 can be used, for example, with a video camera 80 are coupled with the recordings for signal input can be made by objects or people who via the signal processing of the control device for control the solid-state laser and the deflection unit become.
- the handheld device 1 contains in a module arrangement according to 1 shows the deflection unit 7 and, if appropriate, the scanning unit 8 or 80, while in this embodiment the carrying device 2 the solid-state laser, the control device and power supply device contains.
- the laser arrangement and the deflection unit 7 possibly in connection with a scanning element while the Carrier 2, the control device and the power supply device contains.
- On the front of the carrying device 2 is a connection 15 of the support device 2 for the connection 17, 18 with the handheld device as well as for an external control and Monitoring unit provided.
- FIG. 4 shows the summary a semiconductor laser with a laser diode 6 and a collimator optics 55 and the control device a processor 11 and a memory element 13 in one Carrying device on.
- the power supply device 9 (accumulator) is either coupled to the carrying device or as separate carrying device attached.
- the hand-held device 1 contains a deflection unit 7 with two deflecting mirrors. Furthermore, with the handheld device 1 has a scanning unit 8 analogous to the embodiment be connected according to Figure 1.
- the signal input can be via the scanning unit as well also via a wireless connection from an external Data input device 3 take place.
- an external Data input device 3 For this, a radio, infrared or ultrasound transmitter and receiver unit provided, which with a transmitting and receiving element 19 on the Side of the control device is connected. A corresponding one Transmitting and receiving element is on the external Control device 3 is provided.
- FIGS. 5a to 5d each show the resonator that is made of the Kristall 50 and the 99.9% reflective mirror 52 and the exit mirror 53, which is about 88% of Light reflects and transmits 12% of the light.
- FIG. 5a An arrangement of the resonator elements that has been used up to now is shown in Fig. 5a.
- the two mirrors 52 and 53 and the crystal 50 are arranged one behind the other in such a way that the laser beam straight from the Exit mirror 53 exits.
- the resonator according to Fig. 5b next to the already called resonator elements on a mirror 100, which in is arranged at an angle of 45 ° to the beam axis.
- the laser beam is deflected by 90 °, before exiting through exit mirror 53.
- the Redirection gives you a folded beam path that a more compact design of the resonator and thus one further increase in the compactness of the hand laser marking device enables.
- this effect is further enhanced in which the laser beam deflected according to FIG. 5b again by 90 ° through another, at an angle of 45 ° to the Beam axis arranged mirror 101 is deflected before he exits through the mirror 53.
- the folded beam path caused by this deflection enables such a compact construction of the resonator, that the resonator length over conventional resonators and significantly reduced the overall external dimensions of the device becomes.
- FIG. 5c shows 5d.
- this embodiment are in the beam path between the two mirrors 100 and 101 another Q switch 51 (active or passive Q-switch) and after mirror 53 Shutter 103, which is used to release the laser beam when correct Positioning of the object to be labeled, arranged.
- Behind the shutter 103 is one of two mirrors 301 and 302 existing mirror system 300 for expansion arranged of the laser beam.
- the one in the mirror system 300 incident laser beam is only after several Reflection on the two mirrors 301 and 302 coupled out again.
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laser Beam Processing (AREA)
- Lasers (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Printers Characterized By Their Purpose (AREA)
- Dot-Matrix Printers And Others (AREA)
- Facsimile Heads (AREA)
- Electronic Switches (AREA)
- Laser Surgery Devices (AREA)
- Radiation-Therapy Devices (AREA)
Description
- Fig. 1 -
- ein schematisches Blockschaltbild einer Handlaser-Beschriftungsvorrichtung mit in einem Traggerät angeordnetem Festkörperlaser;
- Fig. 2 -
- ein schematisches Blockschaltbild einer Handlaser-Beschriftungsvorrichtung mit im Handgerät angeordnetem Festkörperlaser;
- Fig. 3 -
- eine schematische Darstellung einer Bedienungsperson mit Handgerät und an einem Hüftgurt angeordnetem Traggerät;
- Fig. 4 -
- ein schematisches Blockschaltbild einer Handlaser-Beschriftungsvorrichtung mit drahtloser Signaleingabe; und
- Fig. 5 -
- mögliche Spiegelanordnungen zur Verkürzung der Resonatorlänge.
Claims (26)
- Vorrichtung zum Beschriften von Materialien mit einem Laser (4), einer Ablenkeinheit (7), einer Steuereinrichtung (21) und einer Stromversorgungseinrichtung (22), wobei der Laser (4), die Ablenkeinheit (7), die Steuereinrichtung (21) und die Stromversorgungseinrichtung (22) aus kompakten, transportablen Baugruppen bestehen,
dadurch gekennzeichnet daß mehrere der Baugruppen in einem Handgerät (1) zusammengefaßt sind. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Handgerät (1) die Ablenkeinheit (7) und den Laser (4) enthält, und daß die Vorrichtung ein Traggerät (2) aufweist, das die Steuereinrichtung (21) und die Stromversorgungseinrichtung (22) sowie eine Schnittstelle (15) für eine Verbindung der Steuereinrichtung (21) mit einer externen Steuer- und/oder Eingabeeinheit (3) aufweist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Handgerät (1) die Ablenkeinheit (7) aufweist und über ein Glasfaserkabel (17) mit einem Traggerät (2) verbunden ist, das den Laser (4), die Steuereinrichtung (21) und die Stromversorgungseinrichtung (22) sowie eine Schnittstelle (15) für eine Verbindung der Steuereinrichtung (21) mit einer externen Steuer- und/oder Eingabeeinheit (3) aufweist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß sämtliche Baugruppen in dem Handgerät zusammengefaßt sind.
- Vorrichtung nach einem Ansprüche 2 bis 4, dadurch gekennzeichnet, daß das Handgerät (1) mit einer Abtasteinheit (8), insbesondere einem Scanner, Videokamera, Digitalkamera oder dgl., verbunden ist.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Handgerät (1) eine der Anatomie der Hand angepaßte Form aufweist.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Traggerät (2) vorzugsweise mit einem Hüft- und/oder Schultergurt (16) verbindbar ist.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, gekennzeichnet durch eine Aufnahmeeinheit für zu beschriftende Objekte, in der eine Abstandsmeßeinrichtung zur Abgabe eines die Fokussierung des Laserstrahls steuernden Abstandsmeßsignals und eine Schalteinrichtung zur Freigabe des Laserstrahls bei korrekter Positionierung des zu beschriftenden Objekts angeordnet sind.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß zur Einstellung des Fokusabstands ein Linsenssystem, insbesondere ein Linsensystem einer Autofokus-Kamera, vorgesehen ist.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, gekennzeichnet durch eine Aufnahmeeinheit mit einem mechanischen Anschlag für zu beschriftende Objekte.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Steuereinrichtung (21) drahtlos über eine Funk-, Infrarot- oder Ultraschall-Sende- und Empfangseinheit mit einer externen Steuer- und/oder Eingabeeinheit verbunden ist.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß zumindest die Steuereinrichtung (21) und/oder die Stromversorgungseinrichtung (22) aus Folienschaltungen mit in SMD-Technik befestigten Bauelementen besteht.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Laser (4) aus einem mit einer Laserdiode (6) longitudinal oder transversal gepumpten Festkörperlaser besteht, dessen Pumpvolumen vorzugsweise dem Grundmode-Volumen des zu pumpenden Materials entspricht, und daß der Laser (4) eine Laserbank (5) mit einem Laserkristall (50), einem Q-Switch (51), einem hochreflektierenden Resonatorspiegel (52) und einem Auskoppelspiegel (53) aufweist.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß der Laserkristall (50) keine bzw. eine geringstmögliche Spannungs-Doppelbrechung und eine hohe Fluoreszenzlebensdauer bei geringstmöglichen Abmessungen aufweist.
- Vorrichtung nach Anspruch 13 oder 14 gekennzeichnet durch einen kontinuierlich gepumpten und mittels eines optoakustischen, eines FTIR-Kristalls oder dergleichen gütegeschalteten bzw. modulierten Festkörperlaser (4).
- Vorrichtung nach Anspruch 13 oder 14, gekennzeichnet durch einen mittels eines passiven Q-Switchelementes und einer cw- oder gepulst angesteuerten Laserdiode (6) betriebenen Festkörperlaser (4).
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Laserdiode (6) einen höchstmöglichen Wirkungsgrad aufweist.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Vorrichtung zur Kühlung der Laserdiode ein Kühlelement, insbesondere ein Peltierelement, aufweist.
- Vorrichtung nach Anspruch 18, dadurch gekennzeichnet, daß sowohl der Laserdiodentreiber als auch der Peltiertreiber entweder im Handgerät oder im Traggerät angeordnet sind.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, gekennzeichnet durch eine kompakte Anordnung der einzelnen Laserkomponenten unter Einschliessung einer kürzestmöglichen Resonatorlänge, insbesondere durch einen gefalteten Strahlengang.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, gekennzeichnet durch ein Spiegelsystem als Aufweitungsoptik, insbesondere mit einer Spiegelanordnung mit gefaltetem Strahlengang, und/oder durch eine Aufweitungsoptik mittels zweier Linsen.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Spiegelanordnung mindestens zwei unter 45° zur Strahlachse angeordnete Spiegel aufweist.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche gekennzeichnet durch optische Komponenten oder durch den Laserkristall zur Erzeugung von polarisiertem Licht, um den Beugungswirkungsgrad des akusto-optischen Güteschaltelements zu erhöhen.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß mindestens eine Optik mit hohem Beugungswirkungsgrad, insbesondere ein Kristall, vorgesehen ist, die den Laserprozeß im Resonator bei gleichzeitig geringer Hochfrequenz-Leistungseingabe effizient unterbricht.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, gekennzeichnet durch Bauelemente aus Faserverbundwerkstoff, Keramik und/oder aus Kunststoff sowie durch geklebte Bauelemente.
- Vorrichtung nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß als Motor der Antriebseinheit, mit der die Ablenkeinheit verstellt wird, die Antriebseinheit eines Schreib- Lesekopfes eines Datenspeichers, insbesondere eines magnetischen oder optischen Datenspeichers, vorgesehen ist.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19706038 | 1997-02-06 | ||
| DE19706038A DE19706038A1 (de) | 1997-02-06 | 1997-02-06 | Vorrichtung zum Beschriften von Materialien mit einem Laser |
| PCT/DE1998/000447 WO1998034789A1 (de) | 1997-02-06 | 1998-02-06 | Vorrichtung zum beschriften von materialien mit einem laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0961688A1 EP0961688A1 (de) | 1999-12-08 |
| EP0961688B1 true EP0961688B1 (de) | 2001-04-18 |
Family
ID=7820493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98912243A Expired - Lifetime EP0961688B1 (de) | 1997-02-06 | 1998-02-06 | Vorrichtung zum beschriften von materialien mit einem laser |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6700094B1 (de) |
| EP (1) | EP0961688B1 (de) |
| JP (1) | JP2001510409A (de) |
| KR (1) | KR20000070852A (de) |
| CN (1) | CN1246826A (de) |
| AT (1) | ATE200649T1 (de) |
| AU (1) | AU6717898A (de) |
| CA (1) | CA2279307A1 (de) |
| DE (2) | DE19706038A1 (de) |
| IL (1) | IL131100A0 (de) |
| NO (1) | NO993786L (de) |
| WO (1) | WO1998034789A1 (de) |
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| DE19928084C2 (de) | 1999-06-11 | 2003-03-27 | Compact Laser Solutions Gmbh | Transportables Laserbeschriftungssystem |
| DE10027148A1 (de) * | 2000-05-31 | 2001-12-06 | Volkswagen Ag | Vorrichtung zur Bearbeitung eines Werkstückes mittels eines fokussierbaren Lasers |
| US7361171B2 (en) | 2003-05-20 | 2008-04-22 | Raydiance, Inc. | Man-portable optical ablation system |
| US8921733B2 (en) | 2003-08-11 | 2014-12-30 | Raydiance, Inc. | Methods and systems for trimming circuits |
| US9022037B2 (en) | 2003-08-11 | 2015-05-05 | Raydiance, Inc. | Laser ablation method and apparatus having a feedback loop and control unit |
| US8173929B1 (en) | 2003-08-11 | 2012-05-08 | Raydiance, Inc. | Methods and systems for trimming circuits |
| US20050035097A1 (en) * | 2003-08-11 | 2005-02-17 | Richard Stoltz | Altering the emission of an ablation beam for safety or control |
| EP1704017A1 (de) | 2003-12-18 | 2006-09-27 | Retainagroup Limited | Tragbare laservorrichtung zur markierung eines objekts |
| US6984803B1 (en) | 2004-09-09 | 2006-01-10 | Epilog Corporation | Low profile laser assembly |
| US7578847B2 (en) * | 2005-03-03 | 2009-08-25 | Cervical Xpand, Llc | Posterior lumbar intervertebral stabilizer |
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| US9130344B2 (en) * | 2006-01-23 | 2015-09-08 | Raydiance, Inc. | Automated laser tuning |
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| US7903326B2 (en) | 2007-11-30 | 2011-03-08 | Radiance, Inc. | Static phase mask for high-order spectral phase control in a hybrid chirped pulse amplifier system |
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| US8436276B2 (en) * | 2009-07-28 | 2013-05-07 | The United States Of America As Represented By The Secretary Of The Navy | Portable cutting device for breaching a barrier |
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| US9321128B2 (en) | 2009-07-28 | 2016-04-26 | The United States Of America As Represented By The Secretary Of The Navy | High power laser system |
| US8581771B2 (en) * | 2009-07-28 | 2013-11-12 | The United States Of America As Represented By The Secretary Of The Navy | Scene illuminator |
| US10880035B2 (en) | 2009-07-28 | 2020-12-29 | The United States Of America, As Represented By The Secretary Of The Navy | Unauthorized electro-optics (EO) device detection and response system |
| WO2012021748A1 (en) | 2010-08-12 | 2012-02-16 | Raydiance, Inc. | Polymer tubing laser micromachining |
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| DE102010053604A1 (de) * | 2010-12-06 | 2012-06-06 | Bundesdruckerei Gmbh | Modulare Laserindividualisierungsvorrichtung und Laserindividualisierungssystem |
| US10239160B2 (en) | 2011-09-21 | 2019-03-26 | Coherent, Inc. | Systems and processes that singulate materials |
| US9645088B2 (en) * | 2015-09-30 | 2017-05-09 | Rigaku Americas Holding, Inc. | Device for analyzing the material composition of an object via plasma spectrum analysis |
| EP3466708A1 (de) * | 2017-10-04 | 2019-04-10 | Borealis AG | Polyolefin zusammensetzung für verbesserte laserdruck |
| US10900755B1 (en) * | 2018-06-26 | 2021-01-26 | Applied Research Associates, Inc. | Laser weapon system |
| CN110027328B (zh) * | 2019-03-07 | 2020-05-26 | 西安电子科技大学 | 一种手持移动打印装置 |
| DE102019217506A1 (de) * | 2019-11-13 | 2021-05-20 | Trumpf Schweiz Ag | Handgerät mit einem Markierungslaser und einer Markierungsleseeinrichtung |
| CN111619243B (zh) * | 2020-06-01 | 2023-06-09 | 厦门德瑞雅喷码科技有限公司 | 一种背包分体式手持喷码机及其使用方法 |
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| DE2418064A1 (de) | 1974-04-13 | 1975-10-23 | Messerschmitt Boelkow Blohm | Handschneidemaschine |
| US4467172A (en) * | 1983-01-03 | 1984-08-21 | Jerry Ehrenwald | Method and apparatus for laser engraving diamonds with permanent identification markings |
| DE3318768A1 (de) | 1983-05-24 | 1984-11-29 | Siemens AG, 1000 Berlin und 8000 München | Justiervorrichtung und ablenkkopf fuer einen laserstrahl einer laser-beschriftungsanlage |
| JPS6147684A (ja) * | 1984-08-13 | 1986-03-08 | Canon Inc | レ−ザ−共振装置 |
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| CA2037305A1 (en) * | 1990-07-16 | 1992-01-17 | Jerome Swartz | Arrangement for and method of updating inventory markings |
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| US5049721A (en) * | 1989-09-18 | 1991-09-17 | American Telephone And Telegraph Company | Laser marking apparatus and method for providing markings of enhanced readability in an outer jacket of a moving cable |
| DE4017202A1 (de) | 1990-05-29 | 1991-12-05 | Gisbert Paech | Laserzeichengeraet- mobiles kompakt-tischgeraet fuer materialbearbeitung |
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| US5825402A (en) * | 1993-03-26 | 1998-10-20 | Symbol Technologies, Inc. | Method and appratus for reading and writing indicia such as bar codes using a scanned laser beam |
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| JPH081999A (ja) * | 1994-06-27 | 1996-01-09 | Nec Corp | 光走査方法およびその装置 |
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| JP2854537B2 (ja) * | 1995-03-29 | 1999-02-03 | 双葉電子工業株式会社 | 感光記録装置 |
| US5801356A (en) * | 1995-08-16 | 1998-09-01 | Santa Barbara Research Center | Laser scribing on glass using Nd:YAG laser |
| US5932119A (en) * | 1996-01-05 | 1999-08-03 | Lazare Kaplan International, Inc. | Laser marking system |
| US5751436A (en) * | 1996-12-23 | 1998-05-12 | Rocky Mountain Instrument Company | Method and apparatus for cylindrical coordinate laser engraving |
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-
1997
- 1997-02-06 DE DE19706038A patent/DE19706038A1/de not_active Ceased
-
1998
- 1998-02-06 CN CN98802368A patent/CN1246826A/zh active Pending
- 1998-02-06 KR KR1019997007117A patent/KR20000070852A/ko not_active Withdrawn
- 1998-02-06 WO PCT/DE1998/000447 patent/WO1998034789A1/de not_active Ceased
- 1998-02-06 EP EP98912243A patent/EP0961688B1/de not_active Expired - Lifetime
- 1998-02-06 US US09/367,018 patent/US6700094B1/en not_active Expired - Fee Related
- 1998-02-06 CA CA002279307A patent/CA2279307A1/en not_active Abandoned
- 1998-02-06 JP JP53357698A patent/JP2001510409A/ja not_active Ceased
- 1998-02-06 AT AT98912243T patent/ATE200649T1/de not_active IP Right Cessation
- 1998-02-06 DE DE59800640T patent/DE59800640D1/de not_active Expired - Fee Related
- 1998-02-06 AU AU67178/98A patent/AU6717898A/en not_active Abandoned
- 1998-02-06 IL IL13110098A patent/IL131100A0/xx unknown
-
1999
- 1999-08-05 NO NO993786A patent/NO993786L/no not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001510409A (ja) | 2001-07-31 |
| KR20000070852A (ko) | 2000-11-25 |
| AU6717898A (en) | 1998-08-26 |
| NO993786D0 (no) | 1999-08-05 |
| US6700094B1 (en) | 2004-03-02 |
| CA2279307A1 (en) | 1998-08-13 |
| DE59800640D1 (de) | 2001-05-23 |
| DE19706038A1 (de) | 1998-08-20 |
| EP0961688A1 (de) | 1999-12-08 |
| NO993786L (no) | 1999-10-05 |
| CN1246826A (zh) | 2000-03-08 |
| ATE200649T1 (de) | 2001-05-15 |
| IL131100A0 (en) | 2001-01-28 |
| WO1998034789A1 (de) | 1998-08-13 |
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